{"id":42506,"date":"2025-06-24T01:22:36","date_gmt":"2025-06-23T16:22:36","guid":{"rendered":"https:\/\/jouhou.main.jp\/?p=42506"},"modified":"2026-01-05T19:12:30","modified_gmt":"2026-01-05T10:12:30","slug":"linux-enonet-64-%e5%af%be%e7%ad%96%ef%bc%9amachine-is-not-on-the-network-%e3%82%a8%e3%83%a9%e3%83%bc%e3%81%ae%e5%8e%9f%e5%9b%a0%e8%a7%a3%e6%9e%90%e3%81%a8%e5%af%be%e5%87%a6%e7%b7%a8","status":"publish","type":"post","link":"https:\/\/jouhou.main.jp\/?p=42506","title":{"rendered":"Linux ENONET (64) \u5bfe\u7b56\uff1aMachine is not on the network \u30a8\u30e9\u30fc\u306e\u539f\u56e0\u89e3\u6790\u3068\u5bfe\u51e6\u7de8"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"42506\" class=\"elementor elementor-42506\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d7e02ee elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d7e02ee\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6c449c9\" data-id=\"6c449c9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-21a93d3 elementor-widget elementor-widget-html\" data-id=\"21a93d3\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\r\n\r\n<div style=\"margin:0; padding:30pt; background-color:#EEEEEE;\"> <p style=\"margin:0 0 8px 0; font-size:1.2em;\"><strong>\u3082\u304f\u3058<\/strong><\/p> <ul style=\"list-style-type:none; padding-left:0; margin:0;\"> <li style=\"margin:40px 0;\"><a href=\"#sec01\">\u7b2c1\u7ae0\uff1a\u300c\u30cd\u30c3\u30c8\u306f\u751f\u304d\u3066\u308b\u306e\u306bENONET\uff1f\u300d\u2014\u591c\u9593\u969c\u5bb3\u3067\u4e00\u756a\u3064\u3089\u3044\u201c\u8aac\u660e\u3067\u304d\u306a\u3044\u201d\u77ac\u9593<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec02\">\u7b2c2\u7ae0\uff1aENONET(64) \u306f\u3069\u306esyscall\u3067\u8fd4\u308b\u304b\u2014socket\/connect\/sendto\u306e\u623b\u308a\u5024\u3092\u8d77\u70b9\u306b\u3059\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec03\">\u7b2c3\u7ae0\uff1a\u201cMachine is not on the network\u201d \u3092\u518d\u73fe\u3057\u3066\u307f\u308b\u2014\u6700\u5c0f\u30b3\u30fc\u30c9\u3068\u5931\u6557\u6761\u4ef6\u306e\u4f5c\u308a\u65b9<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec04\">\u7b2c4\u7ae0\uff1a\u539f\u56e0\u306f4\u3064\u306b\u53ce\u675f\u3059\u308b\u2014\u540d\u524d\u7a7a\u9593\uff0fIF\u72b6\u614b\uff0f\u7d4c\u8def\uff0f\u540d\u524d\u89e3\u6c7a\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec05\">\u7b2c5\u7ae0\uff1aIF\u72b6\u614b\u7de8\uff1alink up\u3067\u3082\u843d\u3068\u3057\u7a74\u2014DOWN\u3001NO-CARRIER\u3001\u30a2\u30c9\u30ec\u30b9\u672a\u8a2d\u5b9a\u3001ARP\/ND\u306e\u4e0d\u6574\u5408<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec06\">\u7b2c6\u7ae0\uff1a\u7d4c\u8def\u7de8\uff1adefault route\u304c\u3042\u308b\u306e\u306b\u5c4a\u304b\u306a\u3044\u2014\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001VRF\u3001rp_filter\u3001firewalld\/nft<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec07\">\u7b2c7\u7ae0\uff1a\u540d\u524d\u7a7a\u9593\u30fb\u30b3\u30f3\u30c6\u30ca\u7de8\uff1a\u30db\u30b9\u30c8\u306fOK\u306a\u306e\u306b\u30a2\u30d7\u30ea\u3060\u3051NG\u2014netns\u3001cgroup\u3001K8s\/CNI\u306e\u5883\u754c<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec08\">\u7b2c8\u7ae0\uff1a\u540d\u524d\u89e3\u6c7a\u7de8\uff1aDNS\u306e\u9045\u5ef6\u304c\u201c\u30cd\u30c3\u30c8\u306b\u3044\u306a\u3044\u201d\u3092\u6f14\u51fa\u3059\u308b\u2014resolv.conf\u3001systemd-resolved\u3001\u691c\u7d22\u30c9\u30e1\u30a4\u30f3<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec09\">\u7b2c9\u7ae0\uff1a\u73fe\u5834\u3067\u52dd\u3064\u5207\u308a\u5206\u3051\u624b\u9806\u2014ip\/ss\/ping\u3001tcpdump\u3001strace\u3001\u30ed\u30b0\u76f8\u95a2\u3067\u300c\u3053\u3053\u304c\u58ca\u308c\u3066\u308b\u300d\u3092\u7279\u5b9a<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec10\">\u7b2c10\u7ae0\uff1a\u306a\u308b\u307b\u3069\u3068\u601d\u3048\u308b\u5e30\u7d50\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u201c\u30b1\u30fc\u30d6\u30eb\u201d\u3067\u306f\u306a\u304f\u201c\u524d\u63d0\u6761\u4ef6\u306e\u96c6\u5408\u201d\u2014\u76e3\u8996\u30fbrunbook\u30fb\u81ea\u52d5\u5fa9\u65e7\u3067\u518d\u767a\u3092\u6f70\u3059<\/a><\/li> <\/ul> <\/div> \r\n\r\n\r\n\r\n<p>\u3010\u6ce8\u610f\u3011\u672c\u8a18\u4e8b\u306fLinux\u306eENONET(64)\u300cMachine is not on the network\u300d\u3092\u201c\u5b89\u5168\u306b\u5207\u308a\u5206\u3051\u308b\u201d\u305f\u3081\u306e\u4e00\u822c\u60c5\u5831\u3067\u3059\u3002\u73fe\u5834\u3067\u7126\u3063\u3066\u8a2d\u5b9a\u3092\u4e71\u767a\u3059\u308b\u3068\u3001\u539f\u56e0\u304c\u96a0\u308c\u305f\u308a\u5f71\u97ff\u7bc4\u56f2\u304c\u5e83\u304c\u3063\u305f\u308a\u3057\u307e\u3059\u3002\u307e\u305a\u306f\u30ed\u30b0\u3068\u72b6\u614b\u3092\u4fdd\u5168\u3057\u3001\u696d\u52d9\u5f71\u97ff\u3084\u5951\u7d04\u8981\u4ef6\uff08SLA\/\u76e3\u67fb\/\u5909\u66f4\u624b\u9806\uff09\u3092\u8e0f\u307e\u3048\u305f\u5224\u65ad\u304c\u5fc5\u8981\u3067\u3059\u3002\u5177\u4f53\u7684\u306a\u6848\u4ef6\u30fb\u69cb\u6210\u30fb\u5236\u7d04\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u306e\u3088\u3046\u306a\u5c02\u9580\u4e8b\u696d\u8005\u3078\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec01\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u300c\u30cd\u30c3\u30c8\u306f\u751f\u304d\u3066\u308b\u306e\u306bENONET\uff1f\u300d\u2014\u591c\u9593\u969c\u5bb3\u3067\u4e00\u756a\u3064\u3089\u3044\u201c\u8aac\u660e\u3067\u304d\u306a\u3044\u201d\u77ac\u9593<\/h2> <p>\u300c\u758e\u901a\u306f\u3067\u304d\u3066\u308b\u3002DNS\u3082\u5f15\u3051\u3066\u308b\u3063\u307d\u3044\u3002\u306a\u306e\u306b\u30a2\u30d7\u30ea\u3060\u3051\u304c <strong>ENONET(64)<\/strong> \u3067\u843d\u3061\u308b\u300d\u2015\u2015\u3053\u306e\u624b\u306e\u969c\u5bb3\u3001\u73fe\u5834\u306e\u4f53\u611f\u3068\u3057\u3066\u306f\u201c\u3044\u3061\u3070\u3093\u5acc\u306a\u90e8\u985e\u201d\u3067\u3059\u3002<\/p> <p>\u5fc3\u306e\u4e2d\u3067\u306f\u3053\u3046\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/p> <p>\u300c\u307e\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u2026\u3067\u3082\u76e3\u8996\u306f\u7dd1\u3060\u3057\u3001\u4ed6\u306e\u901a\u4fe1\u306f\u52d5\u3044\u3066\u308b\u3002\u4f55\u3092\u8aac\u660e\u3059\u308c\u3070\u3044\u3044\uff1f\u300d<\/p> <p>\u3053\u3053\u3067\u5927\u4e8b\u306a\u306e\u306f\u3001ENONET\u3092\u201c\u56de\u7dda\u30c8\u30e9\u30d6\u30eb\u201d\u3068\u3057\u3066\u6271\u308f\u306a\u3044\u3053\u3068\u3067\u3059\u3002ENONET\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u300c\u305d\u306e\u30d7\u30ed\u30bb\u30b9\u306e\u898b\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u524d\u63d0\uff08\u540d\u524d\u7a7a\u9593\u30fbIF\u72b6\u614b\u30fb\u7d4c\u8def\u30fb\u540d\u524d\u89e3\u6c7a\uff09\u304c\u5d29\u308c\u3066\u3044\u308b\u300d\u30b5\u30a4\u30f3\u3067\u3001\u30a2\u30d7\u30ea\u8996\u70b9\u306e\u201c\u5230\u9054\u4e0d\u80fd\u201d\u304c\u9732\u51fa\u3057\u305f\u7d50\u679c\u3067\u3059\u3002<\/p> <hr> <h3>\u75c7\u72b6 \u2192 \u53d6\u308b\u3079\u304d\u884c\u52d5\uff08\u307e\u305a30\u79d2\u3067\u3084\u308b\u3053\u3068\uff09<\/h3> <table style=\"border-collapse:collapse; width:100%;\"> <tr> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u75c7\u72b6\uff08\u89b3\u6e2c\uff09<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u53d6\u308b\u3079\u304d\u884c\u52d5\uff08\u5b89\u5168\u306a\u521d\u52d5\uff09<\/th> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u30a2\u30d7\u30ea\u3060\u3051ENONET\u3001\u540c\u30db\u30b9\u30c8\u306ecurl\u306f\u6210\u529f<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u30a2\u30d7\u30ea\u3092<strong>\u518d\u8d77\u52d5\u9023\u6253\u3057\u306a\u3044<\/strong>\u3002\u307e\u305a <strong>strace<\/strong> \u3067\u3069\u306esyscall\u3067\u5931\u6557\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3001\u540c\u6642\u523b\u306e\u30ed\u30b0\u3092\u4fdd\u5168\u3059\u308b\u3002<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u30b3\u30f3\u30c6\u30ca\/Pod\u3060\u3051ENONET\u3001\u30db\u30b9\u30c8\u306f\u6b63\u5e38<\/td> <td style=\"border:1px solid #999; padding:8px;\"><strong>\u540d\u524d\u7a7a\u9593\u5dee\u5206<\/strong>\u3092\u7591\u3046\u3002<strong>ip netns<\/strong> \/ Pod\u5185\u3067 <strong>ip addr, ip route, resolv.conf<\/strong> \u3092\u63a1\u53d6\u3057\u3001CNI\/iptables\/nft\u306e\u5909\u66f4\u5c65\u6b74\u3092\u78ba\u8a8d\u3002<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u7279\u5b9a\u5b9b\u5148\u3060\u3051ENONET\uff08\u793e\u5185\/\u9589\u57df\/VPN\u5074\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\"><strong>ip route get \u5b9b\u5148<\/strong>\u3067\u7d4c\u8def\u3092\u78ba\u5b9a\u3002<strong>\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>\uff08ip rule\uff09\u3084VRF\u3001rp_filter\u306e\u5f71\u97ff\u3092\u78ba\u8a8d\u3002<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u65ad\u7d9a\u7684\u306bENONET\u3001\u3057\u3070\u3089\u304f\u3059\u308b\u3068\u76f4\u308b<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u201c\u72b6\u614b\u9077\u79fb\u201d\u304c\u539f\u56e0\u306e\u3053\u3068\u304c\u591a\u3044\u3002\u30ea\u30f3\u30af\u72b6\u614b\u3001DHCP\/RA\u66f4\u65b0\u3001VPN\u518d\u63a5\u7d9a\u3001DNS\u306e\u5207\u66ff\u306a\u3069\u3001<strong>\u76f4\u524d\u306e\u30a4\u30d9\u30f3\u30c8<\/strong>\uff08journalctl\uff09\u3092\u6642\u7cfb\u5217\u3067\u8ffd\u3046\u3002<\/td> <\/tr> <\/table> <hr> <h3>\u3084\u308a\u304c\u3061\u306a\u60aa\u624b\uff08\u72b6\u6cc1\u3092\u60aa\u5316\u3055\u305b\u308b\u884c\u52d5\uff09<\/h3> <ul> <li>\u300c\u3068\u308a\u3042\u3048\u305a\u76f4\u305b\u300d\u3067 <strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3092\u5927\u91cf\u306b\u66f8\u304d\u63db\u3048\u308b<\/strong>\uff08\u539f\u56e0\u306e\u75d5\u8de1\u304c\u6d88\u3048\u308b\uff09<\/li> <li>iptables\/nft\u3092 <strong>\u5168\u9762\u30d5\u30e9\u30c3\u30b7\u30e5<\/strong>\uff08\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5883\u754c\u3084\u5225\u7cfb\u7d71\u306e\u901a\u4fe1\u304c\u58ca\u308c\u308b\uff09<\/li> <li>\u30a2\u30d7\u30ea\u3092 <strong>\u7121\u9650\u30ea\u30c8\u30e9\u30a4<\/strong> \u3055\u305b\u3066\u30ed\u30b0\u3092\u57cb\u3081\u308b\uff08\u5fc5\u8981\u306a\u30ed\u30b0\u304c\u6d41\u308c\u308b\uff09<\/li> <\/ul> <h3>\u5224\u65ad\u57fa\u6e96\uff1a\u4eca\u3059\u3050\u76f8\u8ac7\u3057\u305f\u65b9\u304c\u65e9\u3044\u30b1\u30fc\u30b9<\/h3> <p>\u6b21\u306b\u5f53\u3066\u306f\u307e\u308b\u5834\u5408\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u7c98\u308b\u3088\u308a\u3001\u65e9\u3081\u306b\u7b2c\u4e09\u8005\u8996\u70b9\u3092\u5165\u308c\u305f\u65b9\u304c\u201c\u53ce\u675f\u201d\u304c\u901f\u3044\u3067\u3059\uff08\u95a2\u4fc2\u8005\u8aac\u660e\u3082\u542b\u3081\u3066\uff09\u3002<\/p> <ul> <li>\u672c\u756a\u3067\u518d\u73fe\u304c\u4e0d\u5b89\u5b9a\u3067\u3001<strong>\u5909\u66f4\u3067\u304d\u308b\u6642\u9593\u5e2f\u304c\u9650\u3089\u308c\u3066\u3044\u308b<\/strong><\/li> <li>\u9589\u57df\/VPN\/\u62e0\u70b9\u9593\u306a\u3069\u3001<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5883\u754c\u304c\u8907\u6570<\/strong>\u3042\u308b<\/li> <li>Kubernetes\u3084\u8907\u6570\u306enetns\/VRF\u304c\u7d61\u307f\u3001<strong>\u8cac\u4efb\u5206\u754c<\/strong>\u304c\u66d6\u6627<\/li> <li>\u76e3\u67fb\u30fbSLA\u30fb\u9867\u5ba2\u5831\u544a\u304c\u5fc5\u8981\u3067\u3001<strong>\u8aac\u660e\u53ef\u80fd\u306a\u6839\u62e0<\/strong>\u304c\u6c42\u3081\u3089\u308c\u308b<\/li> <\/ul> <p>\u300c\u81ea\u5206\u3067\u76f4\u305b\u308b\u304b\u3082\u300d\u3068\u601d\u3063\u3066\u3082\u3001\u73fe\u5b9f\u306b\u306f\u201c\u8aac\u660e\u8cac\u4efb\u201d\u304c\u3044\u3061\u3070\u3093\u91cd\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3046\u3044\u3046\u3068\u304d\u306f\u3001\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u3078\u306e\u7121\u6599\u76f8\u8ac7\uff08\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\u3001\u96fb\u8a71\uff1a0120-838-831\uff09\u3092\u3001\u9078\u629e\u80a2\u3068\u3057\u3066\u6301\u3063\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p> <h3>\u3053\u306e\u7ae0\u306e\u307e\u3068\u3081<\/h3> <p>ENONET\u306f\u300c\u30cd\u30c3\u30c8\u304c\u58ca\u308c\u305f\u300d\u3088\u308a\u3082\u3001\u300c\u305d\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u7f6e\u304b\u308c\u305f\u524d\u63d0\u6761\u4ef6\u304c\u5d29\u308c\u305f\u300d\u3053\u3068\u3092\u7591\u3046\u306e\u304c\u8fd1\u9053\u3067\u3059\u3002\u6b21\u7ae0\u304b\u3089\u3001\u3069\u306esyscall\u3067\u3001\u3069\u3046\u3044\u3046\u6761\u4ef6\u3067ENONET\u304c\u51fa\u308b\u306e\u304b\u3092\u201c\u623b\u308a\u5024\u8d77\u70b9\u201d\u3067\u6574\u7406\u3057\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec02\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">ENONET(64) \u306f\u3069\u306esyscall\u3067\u8fd4\u308b\u304b\u2014socket\/connect\/sendto\u306e\u623b\u308a\u5024\u3092\u8d77\u70b9\u306b\u3059\u308b<\/h2> <p>ENONET(64) \u3092\u653b\u7565\u3059\u308b\u30b3\u30c4\u306f\u3001\u62bd\u8c61\u7684\u306a\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u969c\u5bb3\u300d\u3068\u3044\u3046\u8a00\u8449\u3092\u6368\u3066\u3066\u3001<strong>\u3069\u306esyscall\u304c\u3001\u3069\u306e\u6761\u4ef6\u3067\u5931\u6557\u3057\u305f\u304b<\/strong>\u306b\u843d\u3068\u3059\u3053\u3068\u3067\u3059\u3002<\/p> <p>\u73fe\u5834\u306e\u201c\u5fc3\u306e\u4f1a\u8a71\u201d\u306f\u3060\u3044\u305f\u3044\u3053\u3046\u3067\u3059\u3002<\/p> <p>\u300c\u30a2\u30d7\u30ea\u30ed\u30b0\u306b\u306fENONET\u3057\u304b\u51fa\u3066\u306a\u3044\u3002\u3067\u3001\u7d50\u5c40\u3069\u3053\u3092\u898b\u308c\u3070\u3044\u3044\u306e\uff1f\u300d<\/p> <p>\u898b\u308b\u3079\u304d\u306f\u300c\u30a2\u30d7\u30ea\u304c\u5931\u6557\u3057\u305f\u77ac\u9593\u306eOS\u3068\u306e\u5883\u754c\u300d\u3067\u3059\u3002\u4ee3\u8868\u7684\u306b\u306f\u6b21\u306e\u7cfb\u7d71\u3067ENONET\u304c\u8868\u306b\u51fa\u307e\u3059\u3002<\/p> <h3>ENONET\u304c\u898b\u3048\u3084\u3059\u3044syscall\u306e\u30d1\u30bf\u30fc\u30f3<\/h3> <table style=\"border-collapse:collapse; width:100%;\"> <tr> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u7cfb\u7d71<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u4f8b<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u7740\u773c\u70b9<\/th> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u63a5\u7d9a\uff08TCP\u306a\u3069\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">connect()<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u7d4c\u8def\uff08route\uff09\u3084\u540d\u524d\u7a7a\u9593\u5dee\u5206\u3001VRF\/\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5f71\u97ff\u304c\u51fa\u3084\u3059\u3044<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u9001\u4fe1\uff08UDP\u306a\u3069\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">sendto(), sendmsg()<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u300c\u305d\u306e\u30db\u30b9\u30c8\/\u30d7\u30ed\u30bb\u30b9\u304c\u5c5e\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u5230\u9054\u3067\u304d\u306a\u3044\u300d\u72b6\u614b\u304c\u9732\u51fa\u3057\u3084\u3059\u3044<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u540d\u524d\u89e3\u6c7a\uff08\u9593\u63a5\u8981\u56e0\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">getaddrinfo() \u7b49<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u76f4\u63a5ENONET\u304c\u51fa\u306a\u3044\u3053\u3068\u3082\u591a\u3044\u304c\u3001DNS\u9045\u5ef6\/\u5931\u6557\u304c\u201c\u30cd\u30c3\u30c8\u306b\u3044\u306a\u3044\u201d\u3088\u3046\u306b\u898b\u305b\u308b\uff08\u5f8c\u6bb5\u306e\u901a\u4fe1\u5931\u6557\u3092\u8a98\u767a\uff09<\/td> <\/tr> <\/table> <hr> <h3>\u307e\u305a\u306fstrace\u3067\u300c\u5931\u6557\u70b9\u300d\u3092\u56fa\u5b9a\u3059\u308b<\/h3> <p>\u624b\u5143\u3067\u3067\u304d\u308b\u6700\u5c0f\u306e\u4e00\u624b\u306f\u3001\u5bfe\u8c61\u30d7\u30ed\u30bb\u30b9\uff08\u307e\u305f\u306f\u518d\u73fe\u3067\u304d\u308b\u6700\u5c0f\u30b3\u30de\u30f3\u30c9\uff09\u306b\u5bfe\u3057\u3066 strace \u3092\u5f53\u3066\u3001<strong>errno\u304c\u8fd4\u3063\u305fsyscall<\/strong>\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <pre><code>strace -f -tt -o \/tmp\/trace.log -e trace=network,connect,sendto,recvfrom,getaddrinfo curl -v https:\/\/example.com<\/code><\/pre> <p>\u30a2\u30d7\u30ea\u672c\u4f53\u306b\u5f53\u3066\u308b\u306a\u3089\u3001\u5b9f\u884c\u6a29\u9650\u3084\u5f71\u97ff\uff08\u30ed\u30b0\u91cf\uff09\u306b\u6ce8\u610f\u3057\u3064\u3064\u3001\u77ed\u6642\u9593\u3067\u5207\u308a\u4e0a\u3052\u307e\u3059\u3002\u30dd\u30a4\u30f3\u30c8\u306f\u300c\u3044\u3064\u30fb\u3069\u306e\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u30fb\u3069\u306esyscall\u304c\u30fb\u4f55\u306eerrno\u3067\u5931\u6557\u3057\u305f\u304b\u300d\u30921\u3064\u306e\u7dda\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <h3>\u201cENONET\u5358\u4f53\u201d\u3067\u306f\u539f\u56e0\u306f\u6c7a\u307e\u3089\u306a\u3044<\/h3> <p>\u3053\u3053\u304c\u843d\u3068\u3057\u7a74\u3067\u3059\u3002ENONET\u306f\u201c\u75c7\u72b6\u30e9\u30d9\u30eb\u201d\u3067\u3042\u3063\u3066\u3001\u539f\u56e0\u305d\u306e\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u540c\u3058ENONET\u3067\u3082\u3001\u6b21\u306e\u3088\u3046\u306b\u6253\u3061\u624b\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p> <ul> <li><strong>\u7d4c\u8def\u304c\u306a\u3044\/\u9078\u3079\u306a\u3044<\/strong>\uff1aip route \/ ip rule \/ VRF \/ \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb<\/li> <li><strong>IF\u3084\u30a2\u30c9\u30ec\u30b9\u304c\u524d\u63d0\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044<\/strong>\uff1aip link \/ ip addr \/ DHCP \/ RA<\/li> <li><strong>\u540d\u524d\u7a7a\u9593\u304c\u9055\u3046<\/strong>\uff1anetns\u3001\u30b3\u30f3\u30c6\u30ca\u3001K8s<\/li> <li><strong>\u540d\u524d\u89e3\u6c7a\u3084\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306e\u9023\u9396<\/strong>\uff1aresolv.conf\u3001systemd-resolved\u3001\u691c\u7d22\u30c9\u30e1\u30a4\u30f3<\/li> <\/ul> <hr> <h3>\u3053\u306e\u7ae0\u306e\u307e\u3068\u3081<\/h3> <p>ENONET\u3092\u201c\u8aac\u660e\u3067\u304d\u308b\u969c\u5bb3\u201d\u306b\u5909\u3048\u308b\u306b\u306f\u3001\u307e\u305a\u623b\u308a\u5024\u3092\u56fa\u5b9a\u3057\u3001syscall\u2192\u5b9b\u5148\u2192\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u524d\u63d0\uff08\u7d4c\u8def\/IF\/netns\/DNS\uff09\u306e\u3069\u3053\u304c\u5d29\u308c\u3066\u3044\u308b\u304b\u306b\u843d\u3068\u3059\u3053\u3068\u3067\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u73fe\u5834\u3067\u518d\u73fe\u3057\u306b\u304f\u3044ENONET\u3092\u300c\u6700\u5c0f\u518d\u73fe\u300d\u306b\u3057\u3066\u3001\u5207\u308a\u5206\u3051\u3092\u524d\u306b\u9032\u3081\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec03\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u201cMachine is not on the network\u201d \u3092\u518d\u73fe\u3057\u3066\u307f\u308b\u2014\u6700\u5c0f\u30b3\u30fc\u30c9\u3068\u5931\u6557\u6761\u4ef6\u306e\u4f5c\u308a\u65b9<\/h2> <p>\u969c\u5bb3\u5bfe\u5fdc\u304c\u9577\u5f15\u304f\u7406\u7531\u306e\u591a\u304f\u306f\u3001\u300c\u672c\u756a\u3067\u3057\u304b\u8d77\u304d\u306a\u3044\u300d\u300c\u8d77\u304d\u305f\u308a\u8d77\u304d\u306a\u304b\u3063\u305f\u308a\u3059\u308b\u300d\u3068\u3044\u3046\u518d\u73fe\u6027\u306e\u4f4e\u3055\u306b\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306e\u72d9\u3044\u306f\u3001\u539f\u56e0\u3092\u65ad\u5b9a\u3059\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001<strong>\u518d\u73fe\u6761\u4ef6\u3092\u201c\u72ed\u304f\u201d\u3059\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002\u72ed\u304f\u3067\u304d\u308c\u3070\u3001\u691c\u8a3c\u3082\u8aac\u660e\u3082\u4e00\u6c17\u306b\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u73fe\u5834\u306e\u72ec\u308a\u8a00\u306f\u3053\u3046\u3067\u3059\u3002<\/p> <p>\u300c\u518d\u73fe\u3067\u304d\u306a\u3044\u306e\u306b\u3001\u4f55\u3092\u76f4\u305b\u3070\u3044\u3044\u3093\u3060\u2026\u300d<\/p> <p>\u305d\u306e\u72b6\u614b\u304b\u3089\u629c\u3051\u308b\u305f\u3081\u306b\u3001\u201c\u6700\u5c0f\u518d\u73fe\u201d\u3092\u4f5c\u308b\u3068\u304d\u306e\u539f\u5247\u3092\u62bc\u3055\u3048\u307e\u3059\u3002<\/p> <h3>\u539f\u52471\uff1a\u540c\u3058\u5b9b\u5148\u30fb\u540c\u3058\u30d7\u30ed\u30c8\u30b3\u30eb\u30fb\u540c\u3058\u540d\u524d\u7a7a\u9593\u3067\u8a66\u3059<\/h3> <p>\u305f\u3068\u3048\u3070\u300c\u30a2\u30d7\u30ea\u306fENONET\u3060\u304c\u3001\u30db\u30b9\u30c8\u3067curl\u306f\u901a\u308b\u300d\u5834\u5408\u3001\u307e\u305a\u7591\u3046\u3079\u304d\u306f \u201c\u540c\u3058\u6761\u4ef6\u3067\u8a66\u305b\u3066\u3044\u306a\u3044\u201d \u3053\u3068\u3067\u3059\u3002\u30a2\u30d7\u30ea\u304c\u30b3\u30f3\u30c6\u30ca\u5185\u306a\u3089\u3001\u30db\u30b9\u30c8\u3067\u306f\u306a\u304f\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u540c\u3058\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u8a66\u3057\u307e\u3059\u3002<\/p> <pre><code># \u30b3\u30f3\u30c6\u30ca\/Pod\u5185\u3067\u306e\u78ba\u8a8d\uff08\u4f8b\uff09 ip addr ip route cat \/etc\/resolv.conf getent hosts example.com curl -v https:\/\/example.com<\/code><\/pre> <p>\u3053\u308c\u3060\u3051\u3067\u3001\u30db\u30b9\u30c8\u5074\u306e\u78ba\u8a8d\u304c\u201c\u7684\u5916\u308c\u201d\u3060\u3063\u305f\u3068\u5224\u660e\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff08\u30db\u30b9\u30c8\u306e\u7d4c\u8def\u3084DNS\u306f\u6b63\u3057\u304f\u3066\u3082\u3001\u30a2\u30d7\u30ea\u5074\u304c\u898b\u3066\u3044\u308b\u3082\u306e\u304c\u5225\u306a\u3089\u610f\u5473\u304c\u3042\u308a\u307e\u305b\u3093\uff09\u3002<\/p> <hr> <h3>\u539f\u52472\uff1aip route get \u3067\u300cOS\u304c\u9078\u3093\u3060\u7d4c\u8def\u300d\u3092\u78ba\u5b9a\u3059\u308b<\/h3> <p>ENONET\u306e\u5207\u308a\u5206\u3051\u3067\u306f\u3001<strong>ip route get<\/strong> \u304c\u975e\u5e38\u306b\u52b9\u304d\u307e\u3059\u3002\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u3001OS\u304c\u3069\u306eIF\/\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\/\u9001\u4fe1\u5143IP\u3092\u9078\u3076\u304b\u3092\u4e00\u767a\u3067\u898b\u3089\u308c\u308b\u304b\u3089\u3067\u3059\u3002<\/p> <pre><code># \u5b9b\u5148IP\u307e\u305f\u306f\u540d\u524d\u89e3\u6c7a\u5f8c\u306eIP\u306b\u5bfe\u3057\u3066 ip route get 203.0.113.10<\/code><\/pre> <p>\u3053\u3053\u3067\u201c\u671f\u5f85\u3068\u9055\u3046\u7d4c\u8def\u201d\u304c\u51fa\u308b\u5834\u5408\u3001\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff08ip rule\uff09\u3084VRF\u3001\u9001\u4fe1\u5143\u9078\u629e\u3001\u3042\u308b\u3044\u306f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u524d\u63d0\u304c\u5d29\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p> <h3>\u539f\u52473\uff1a\u5dee\u5206\u3092\u201c\u5909\u66f4\u201d\u3067\u306f\u306a\u304f\u201c\u63a1\u53d6\u201d\u3067\u8a70\u3081\u308b<\/h3> <p>\u7126\u308b\u3068\u300c\u8a2d\u5b9a\u3092\u5909\u3048\u3066\u8a66\u3059\u300d\u65b9\u5411\u306b\u8d70\u308a\u304c\u3061\u3067\u3059\u304c\u3001\u518d\u73fe\u6027\u304c\u4f4e\u3044\u3068\u304d\u307b\u3069\u5909\u66f4\u306f\u5371\u967a\u3067\u3059\u3002\u72b6\u6cc1\u304c\u52d5\u3044\u3066\u3057\u307e\u3044\u3001\u539f\u56e0\u304c\u96a0\u308c\u307e\u3059\u3002\u304a\u3059\u3059\u3081\u306f\u201c\u63a1\u53d6\u3067\u8a70\u3081\u308b\u201d\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u3059\u3002<\/p> <ul> <li><strong>\u72b6\u614b\u63a1\u53d6<\/strong>\uff1aip link \/ ip addr \/ ip route \/ ip rule \/ ss -tnp \/ resolv.conf<\/li> <li><strong>\u30ed\u30b0\u63a1\u53d6<\/strong>\uff1ajournalctl\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b5\u30fc\u30d3\u30b9\u3001VPN\u3001CNI\u95a2\u9023\uff09<\/li> <li><strong>\u30d1\u30b1\u30c3\u30c8<\/strong>\uff1atcpdump\uff08\u9001\u4fe1\u304c\u51fa\u3066\u3044\u308b\u304b\u3001ARP\/ND\u306f\u89e3\u6c7a\u3057\u3066\u3044\u308b\u304b\uff09<\/li> <\/ul> <hr> <h3>\u6700\u5c0f\u30b3\u30fc\u30c9\u3067\u201c\u5931\u6557\u70b9\u201d\u3060\u3051\u3092\u898b\u308b\uff08\u4f8b\uff1aUDP\u9001\u4fe1\uff09<\/h3> <p>\u30a2\u30d7\u30ea\u304cUDP\u9001\u4fe1\u3067\u843d\u3061\u3066\u3044\u308b\u7591\u3044\u304c\u3042\u308b\u306a\u3089\u3001\u307e\u305a\u306f\u9001\u4fe1\u3060\u3051\u306e\u6700\u5c0f\u30b3\u30fc\u30c9\u306b\u843d\u3068\u3057\u3066\u3001\u540c\u3058\u74b0\u5883\uff08\u540c\u3058netns\uff09\u3067\u8a66\u3057\u307e\u3059\u3002\u8a00\u8a9e\u306f\u4f55\u3067\u3082\u3088\u3044\u3067\u3059\u304c\u3001\u91cd\u8981\u306a\u306e\u306f\u300c\u3069\u306e\u547c\u3073\u51fa\u3057\u304c\u5931\u6557\u3057\u3001errno\u304c\u4f55\u304b\u300d\u3092\u30ed\u30b0\u3068\u3057\u3066\u6b8b\u3059\u3053\u3068\u3067\u3059\u3002<\/p> <pre><code># \u4f8b\uff1a\u9001\u4fe1\u78ba\u8a8d\u306b\u4f7f\u3048\u308b\u89b3\u6e2c\uff08\u30b3\u30fc\u30c9\u3067\u306f\u306a\u304f\u201c\u89b3\u6e2c\u306e\u5f62\u201d\uff09 # - \u9001\u4fe1\u524d\u306b\u5b9b\u5148IP\u3092\u78ba\u5b9a\uff08\u540d\u524d\u89e3\u6c7a\u306e\u5f71\u97ff\u3092\u5207\u308a\u5206\u3051\u308b\uff09 # - \u9001\u4fe1\u5f8c\u306btcpdump\u3067\u5b9f\u969b\u306b\u51fa\u3066\u3044\u308b\u304b\u3092\u898b\u308b # - \u5931\u6557\u3057\u305f\u3089errno\u3092\u5fc5\u305a\u8a18\u9332\u3059\u308b<\/code><\/pre> <p>\u3053\u3053\u3067\u300c\u9001\u4fe1\u81ea\u4f53\u304c\u51fa\u3066\u3044\u306a\u3044\u300d\u306a\u3089\u3001\u7d4c\u8def\/IF\/\u540d\u524d\u7a7a\u9593\u306e\u3069\u3053\u304b\u304c\u5148\u306b\u5d29\u308c\u3066\u3044\u307e\u3059\u3002\u9006\u306b\u300c\u9001\u4fe1\u306f\u51fa\u3066\u3044\u308b\u304c\u8fd4\u308a\u304c\u306a\u3044\u300d\u306a\u3089\u3001ENONET\u4ee5\u5916\u306e\u89b3\u70b9\uff08FW\u3001\u5bfe\u5411\u3001MTU\u306a\u3069\uff09\u3082\u542b\u3081\u305f\u5207\u308a\u5206\u3051\u306b\u79fb\u308c\u307e\u3059\u3002<\/p> <hr> <h3>\u3053\u306e\u7ae0\u306e\u307e\u3068\u3081<\/h3> <p>\u201c\u518d\u73fe\u3067\u304d\u306a\u3044\u201d\u306f\u3001\u5bfe\u5fdc\u304c\u6ce5\u6cbc\u5316\u3059\u308b\u6700\u5927\u8981\u56e0\u3067\u3059\u3002\u518d\u73fe\u3092\u4f5c\u308b\u30b3\u30c4\u306f\u3001\u6761\u4ef6\u3092\u63c3\u3048\uff08\u540c\u3058\u5b9b\u5148\u30fb\u540c\u3058\u30d7\u30ed\u30c8\u30b3\u30eb\u30fb\u540c\u3058\u540d\u524d\u7a7a\u9593\uff09\u3001\u5909\u66f4\u3088\u308a\u63a1\u53d6\u3067\u5dee\u5206\u3092\u8a70\u3081\u3001ip route get \u3067OS\u306e\u5224\u65ad\u3092\u56fa\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6b21\u7ae0\u4ee5\u964d\u306f\u3001\u539f\u56e0\u3092\u300c\u540d\u524d\u7a7a\u9593\uff0fIF\u72b6\u614b\uff0f\u7d4c\u8def\uff0f\u540d\u524d\u89e3\u6c7a\u300d\u306e4\u5206\u985e\u306b\u53ce\u675f\u3055\u305b\u3001\u9806\u756a\u306b\u6df1\u6398\u308a\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec04\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u539f\u56e0\u306f4\u3064\u306b\u53ce\u675f\u3059\u308b\u2014\u540d\u524d\u7a7a\u9593\uff0fIF\u72b6\u614b\uff0f\u7d4c\u8def\uff0f\u540d\u524d\u89e3\u6c7a\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2> <p>ENONET(64) \u304c\u51fa\u305f\u3068\u304d\u3001\u300c\u539f\u56e0\u306f\u7121\u9650\u306b\u3042\u308b\u300d\u3068\u611f\u3058\u307e\u3059\u3002\u3067\u3082\u5b9f\u52d9\u3067\u5207\u308a\u5206\u3051\u308b\u306a\u3089\u3001\u89b3\u6e2c\u30dd\u30a4\u30f3\u30c8\u306f\u304b\u306a\u308a\u7d5e\u308c\u307e\u3059\u3002\u591a\u304f\u306e\u30b1\u30fc\u30b9\u3067\u3001\u6839\u306f\u6b21\u306e4\u5206\u985e\u306e\u3069\u308c\u304b\uff08\u307e\u305f\u306f\u7d44\u307f\u5408\u308f\u305b\uff09\u306b\u53ce\u675f\u3057\u307e\u3059\u3002<\/p> <h3>4\u5206\u985e\uff08\u6700\u77ed\u3067\u201c\u5f53\u305f\u308a\u201d\u3092\u3064\u3051\u308b\u67a0\u7d44\u307f\uff09<\/h3> <table style=\"border-collapse:collapse; width:100%;\"> <tr> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u5206\u985e<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u8d77\u304d\u304c\u3061\u306a\u72b6\u6cc1<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u307e\u305a\u898b\u308b\u30b3\u30de\u30f3\u30c9<\/th> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u540d\u524d\u7a7a\u9593\uff08netns\/\u30b3\u30f3\u30c6\u30ca\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u30db\u30b9\u30c8\u306f\u6b63\u5e38\u3060\u304c\u3001\u30b3\u30f3\u30c6\u30ca\/\u7279\u5b9a\u30d7\u30ed\u30bb\u30b9\u3060\u3051\u5931\u6557<\/td> <td style=\"border:1px solid #999; padding:8px;\">\uff08\u5f53\u8a72\u74b0\u5883\u5185\u3067\uff09ip addr \/ ip route \/ cat \/etc\/resolv.conf<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">IF\u72b6\u614b\uff08\u30ea\u30f3\u30af\/\u30a2\u30c9\u30ec\u30b9\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u30ea\u30f3\u30af\u306fup\u8868\u793a\u3067\u3082\u3001\u30a2\u30c9\u30ec\u30b9\u3084\u8fd1\u96a3\u89e3\u6c7a\u304c\u7834\u7dbb<\/td> <td style=\"border:1px solid #999; padding:8px;\">ip link \/ ip addr \/ ip neigh<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u7d4c\u8def\uff08route\/rule\/VRF\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u5b9b\u5148\u306b\u3088\u3063\u3066\u5931\u6557\u3001\u62e0\u70b9\/VPN\/\u591a\u6bb5\u30eb\u30fc\u30c8\u3067\u9855\u5728\u5316<\/td> <td style=\"border:1px solid #999; padding:8px;\">ip route \/ ip rule \/ ip route get \u5b9b\u5148<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u540d\u524d\u89e3\u6c7a\uff08DNS\/hosts\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u4e00\u898b\u30cd\u30c3\u30c8\u4e0d\u8abf\u306b\u898b\u3048\u308b\u304c\u3001\u5b9f\u306f\u540d\u524d\u2192IP\u304c\u5d29\u308c\u308b<\/td> <td style=\"border:1px solid #999; padding:8px;\">getent hosts \/ resolvectl \/ dig\uff08\u74b0\u5883\u306b\u5fdc\u3058\u3066\uff09<\/td> <\/tr> <\/table> <hr> <h3>\u201c\u5fc3\u306e\u4f1a\u8a71\u201d\u3092\u5473\u65b9\u306b\u3064\u3051\u308b\uff1a\u5207\u308a\u5206\u3051\u306f\u9806\u756a\u304c\u5927\u4e8b<\/h3> <p>\u73fe\u5834\u3060\u3068\u3001\u3060\u3044\u305f\u3044\u3053\u3046\u601d\u3044\u307e\u3059\u3002<\/p> <p>\u300c\u3069\u308c\u304b\u3089\u898b\u308c\u3070\u3044\u3044\uff1f\u5168\u90e8\u898b\u308b\u3068\u6642\u9593\u304c\u6eb6\u3051\u308b\u2026\u300d<\/p> <p>\u304a\u3059\u3059\u3081\u306e\u9806\u756a\u306f\u3001<strong>\u5dee\u5206\u304c\u51fa\u3084\u3059\u3044\u9806<\/strong>\u3067\u3059\u3002<\/p> <ol> <li><strong>\u540d\u524d\u7a7a\u9593<\/strong>\uff08\u30db\u30b9\u30c8\u3068\u30a2\u30d7\u30ea\u304c\u540c\u3058\u4e16\u754c\u306b\u3044\u308b\u304b\uff09<\/li> <li><strong>IF\u72b6\u614b<\/strong>\uff08\u30a2\u30c9\u30ec\u30b9\u3068\u8fd1\u96a3\u89e3\u6c7a\u304c\u6210\u7acb\u3057\u3066\u3044\u308b\u304b\uff09<\/li> <li><strong>\u7d4c\u8def<\/strong>\uff08OS\u304c\u3069\u306e\u9053\u3092\u9078\u3093\u3060\u304b\uff09<\/li> <li><strong>\u540d\u524d\u89e3\u6c7a<\/strong>\uff08\u540d\u524d\u2192IP\u304c\u671f\u5f85\u3069\u304a\u308a\u304b\uff09<\/li> <\/ol> <p>\u7406\u7531\u306f\u5358\u7d14\u3067\u3001\u540d\u524d\u7a7a\u9593\u304c\u9055\u3048\u3070\u4ee5\u5f8c\u306e\u78ba\u8a8d\u304c\u5168\u90e8\u30ba\u30ec\u308b\u304b\u3089\u3067\u3059\u3002\u6b21\u306bIF\u72b6\u614b\u304c\u5d29\u308c\u3066\u3044\u308b\u3068\u3001\u7d4c\u8def\u304c\u3042\u3063\u3066\u3082\u5c4a\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u5f8c\u306b\u7d4c\u8def\u3001\u6700\u5f8c\u306b\u540d\u524d\u89e3\u6c7a\u3092\u8a70\u3081\u308b\u3068\u3001\u7121\u99c4\u304c\u6e1b\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff08\u63a1\u53d6\u7528\u30c6\u30f3\u30d7\u30ec\uff09<\/h3> <p>\u201c\u5909\u66f4\u3059\u308b\u524d\u306b\u63a1\u53d6\u3059\u308b\u201d\u305f\u3081\u306e\u6700\u5c0f\u30bb\u30c3\u30c8\u3067\u3059\u3002\u969c\u5bb3\u5831\u544a\u3084\u9867\u5ba2\u8aac\u660e\u306b\u3082\u4f7f\u3048\u307e\u3059\u3002<\/p> <ul> <li><strong>\u6642\u523b<\/strong>\uff1adate \/ timedatectl\uff08NTP\u540c\u671f\u306e\u6709\u7121\uff09<\/li> <li><strong>\u540d\u524d\u7a7a\u9593<\/strong>\uff1a\u30b3\u30f3\u30c6\u30ca\/Pod\u5185\u3067 ip addr, ip route\uff08\u30db\u30b9\u30c8\u3068\u6bd4\u8f03\uff09<\/li> <li><strong>IF\u72b6\u614b<\/strong>\uff1aip link \/ ip addr \/ ip neigh\uff08ARP\/ND\u306e\u63fa\u308c\u3092\u898b\u308b\uff09<\/li> <li><strong>\u7d4c\u8def<\/strong>\uff1aip route \/ ip rule \/ ip route get \u5b9b\u5148<\/li> <li><strong>\u30bd\u30b1\u30c3\u30c8\u72b6\u614b<\/strong>\uff1ass -tnp \/ ss -unp\uff08\u5f85\u3061\u53d7\u3051\u30fb\u63a5\u7d9a\u306e\u8a70\u307e\u308a\uff09<\/li> <li><strong>\u540d\u524d\u89e3\u6c7a<\/strong>\uff1agetent hosts \u5bfe\u8c61\u540d \/ cat \/etc\/resolv.conf\uff08\u74b0\u5883\u4f9d\u5b58\u3067 resolvectl\uff09<\/li> <li><strong>\u30ed\u30b0<\/strong>\uff1ajournalctl\uff08networkd\/NetworkManager\/VPN\/CNI\/\u30ab\u30fc\u30cd\u30eb\uff09<\/li> <\/ul> <h3>\u3053\u306e\u7ae0\u306e\u307e\u3068\u3081<\/h3> <p>ENONET\u306f\u201c\u5e83\u3044\u969c\u5bb3\u201d\u306b\u898b\u3048\u3066\u3082\u3001\u5b9f\u52d9\u3067\u306f4\u5206\u985e\u306b\u7573\u3081\u307e\u3059\u3002\u307e\u305a\u306f\u63a1\u53d6\u3057\u3066\u3001\u3069\u306e\u5206\u985e\u304c\u6fc3\u3044\u304b\u5f53\u305f\u308a\u3092\u3064\u3051\u308b\u3002\u6b21\u7ae0\u304b\u3089\u306f\u3001\u305d\u306e\u4e2d\u3067\u3082\u983b\u51fa\u306e\u300cIF\u72b6\u614b\u300d\u304b\u3089\u5177\u4f53\u7684\u306a\u843d\u3068\u3057\u7a74\u3092\u6398\u308a\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec05\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">IF\u72b6\u614b\u7de8\uff1alink up\u3067\u3082\u843d\u3068\u3057\u7a74\u2014DOWN\u3001NO-CARRIER\u3001\u30a2\u30c9\u30ec\u30b9\u672a\u8a2d\u5b9a\u3001ARP\/ND\u306e\u4e0d\u6574\u5408<\/h2> <p>\u300cip link \u3067UP\u306b\u306a\u3063\u3066\u308b\uff1d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u751f\u304d\u3066\u308b\u300d\u3068\u601d\u3044\u304c\u3061\u3067\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f\u201cUP\u3067\u3082\u901a\u4fe1\u524d\u63d0\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u201d\u3053\u3068\u306f\u666e\u901a\u306b\u8d77\u304d\u307e\u3059\u3002ENONET\u304c\u51fa\u308b\u72b6\u6cc1\u3067\u306f\u3001IF\u72b6\u614b\uff08\u30ea\u30f3\u30af\u30fb\u30a2\u30c9\u30ec\u30b9\u30fb\u8fd1\u96a3\u89e3\u6c7a\uff09\u306e\u3069\u3053\u304b\u304c\u7834\u7dbb\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3067\u3059\u3002<\/p> <h3>1) link\u72b6\u614b\u306e\u8aad\u307f\u9055\u3044\uff1aUP\u3068LOWER_UP\u306f\u5225\u7269<\/h3> <p>ip link \u306e\u8868\u793a\u3067\u3001\u7ba1\u7406\u72b6\u614b\uff08UP\/DOWN\uff09\u3068\u7269\u7406\u7684\u306a\u30ea\u30f3\u30af\uff08LOWER_UP\/NO-CARRIER\uff09\u306f\u5225\u3067\u3059\u3002\u4eee\u60f3IF\u3084\u30d6\u30ea\u30c3\u30b8\u914d\u4e0b\u3060\u3068\u3001\u3055\u3089\u306b\u76f4\u611f\u304c\u5916\u308c\u307e\u3059\u3002<\/p> <pre><code>ip link show # \u4f8b\uff1astate DOWN \/ NO-CARRIER \/ LOWER_UP \u306a\u3069\u3092\u78ba\u8a8d<\/code><\/pre> <p>\u3053\u3053\u3067NO-CARRIER\u3084DOWN\u76f8\u5f53\u304c\u51fa\u3066\u3044\u308b\u306e\u306b\u3001\u4e0a\u4f4d\u30b5\u30fc\u30d3\u30b9\u304c\u300c\u901a\u4fe1\u3067\u304d\u308b\u524d\u63d0\u300d\u3067\u52d5\u304d\u7d9a\u3051\u308b\u3068\u3001\u30a2\u30d7\u30ea\u5074\u3067ENONET\u3084\u8fd1\u3044\u30a8\u30e9\u30fc\u304c\u5674\u304d\u307e\u3059\u3002<\/p> <hr> <h3>2) \u30a2\u30c9\u30ec\u30b9\u672a\u8a2d\u5b9a\uff1aDHCP\/RA\u306e\u53d6\u308a\u3053\u307c\u3057<\/h3> <p>\u30ea\u30f3\u30af\u306fUP\u3067\u3082\u3001IP\u30a2\u30c9\u30ec\u30b9\u304c\u4ed8\u3044\u3066\u3044\u306a\u3051\u308c\u3070\u5f53\u7136\u5230\u9054\u3067\u304d\u307e\u305b\u3093\u3002\u3068\u304f\u306bDHCP\u3084IPv6 RA\uff08Router Advertisement\uff09\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u74b0\u5883\u3060\u3068\u3001\u518d\u8d77\u52d5\u76f4\u5f8c\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5207\u66ff\u306e\u77ac\u9593\u306b\u201c\u30a2\u30c9\u30ec\u30b9\u7a7a\u201d\u304c\u8d77\u304d\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <pre><code>ip addr show # inet\/inet6 \u304c\u671f\u5f85\u3069\u304a\u308a\u4ed8\u3044\u3066\u3044\u308b\u304b<\/code><\/pre> <p>\u307e\u305f\u3001\u8907\u6570\u30a2\u30c9\u30ec\u30b9\u304c\u4ed8\u304f\u74b0\u5883\u3067\u306f\u300c\u9001\u4fe1\u5143\u9078\u629e\u300d\u304c\u60f3\u5b9a\u5916\u306b\u306a\u308a\u3001\u7d50\u679c\u3068\u3057\u3066\u7d4c\u8def\u9078\u629e\u3082\u30ba\u30ec\u307e\u3059\u3002\u3053\u308c\u304c\u5f8c\u6bb5\u306e\u7ae0\uff08\u7d4c\u8def\uff09\u306b\u7e4b\u304c\u308b\u4f0f\u7dda\u3067\u3059\u3002<\/p> <hr> <h3>3) \u8fd1\u96a3\u89e3\u6c7a\uff08ARP\/ND\uff09\u306e\u7834\u7dbb\uff1a\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u3060\u304c\u52b9\u304f<\/h3> <p>\u201c\u540c\u4e00L2\u5185\u306e\u5230\u9054\u201d\u306f\u3001\u7d50\u5c40ARP\uff08IPv4\uff09\u3084ND\uff08IPv6\uff09\u3067\u96a3\u306eMAC\u3092\u5f15\u3051\u308b\u3053\u3068\u304c\u524d\u63d0\u3067\u3059\u3002\u3053\u3053\u304c\u8a70\u307e\u308b\u3068\u3001\u30a2\u30d7\u30ea\u8996\u70b9\u3067\u306f\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u306a\u3044\u300d\u3088\u3046\u306b\u898b\u3048\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <pre><code>ip neigh show # FAILED\/INCOMPLETE\/STALE \u304c\u5927\u91cf\u306b\u51fa\u3066\u3044\u306a\u3044\u304b<\/code><\/pre> <p>STALE\u306f\u5fc5\u305a\u3057\u3082\u7570\u5e38\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u7279\u5b9a\u5b9b\u5148\u3060\u3051FAILED\u304c\u7d9a\u304f\u306a\u3089\u3001L2\u306e\u524d\u63d0\uff08VLAN\u3001\u30d6\u30ea\u30c3\u30b8\u3001\u30d5\u30a3\u30eb\u30bf\u3001MAC\u5b66\u7fd2\u3001\u5bfe\u5411\u6a5f\u5668\uff09\u3092\u7591\u3046\u6839\u62e0\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>4) MTU\/\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u7f60\uff1a\u758e\u901a\u306f\u3059\u308b\u304c\u30a2\u30d7\u30ea\u3060\u3051\u58ca\u308c\u308b<\/h3> <p>MTU\u4e0d\u6574\u5408\u306f\u300c\u5c0f\u3055\u3044\u30d1\u30b1\u30c3\u30c8\u306f\u901a\u308b\u304c\u3001\u5927\u304d\u3044\u901a\u4fe1\u304c\u58ca\u308c\u308b\u300d\u75c7\u72b6\u3092\u4f5c\u308a\u307e\u3059\u3002ENONET\u305d\u306e\u3082\u306e\u306e\u5178\u578b\u539f\u56e0\u3067\u306f\u306a\u3044\u3082\u306e\u306e\u3001ENONET\u3068\u4f75\u767a\u3057\u305f\u308a\u3001\u73fe\u5834\u3067\u201c\u30cd\u30c3\u30c8\u304c\u5909\u201d\u3068\u3044\u3046\u5370\u8c61\u3092\u5f37\u3081\u305f\u308a\u3057\u307e\u3059\u3002<\/p> <p>\u3053\u306e\u5834\u5408\u3001ping\u306e\u30b5\u30a4\u30ba\u6307\u5b9a\uff08DF\u4ed8\u4e0e\uff09\u3084\u3001tcpdump\u3067ICMP frag needed \u304c\u51fa\u3066\u3044\u306a\u3044\u304b\u306a\u3069\u3001\u89b3\u6e2c\u3067\u5f53\u305f\u308a\u3092\u4ed8\u3051\u307e\u3059\u3002\u305f\u3060\u3057\u7121\u95c7\u306bMTU\u3092\u5909\u66f4\u3059\u308b\u306e\u306f\u5371\u967a\u306a\u306e\u3067\u3001\u5909\u66f4\u306f\u5f8c\u6bb5\uff08\u5f71\u97ff\u8a55\u4fa1\uff09\u306b\u56de\u3059\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p> <hr> <h3>\u7ae0\u5185\u307e\u3068\u3081\uff1aIF\u72b6\u614b\u306f\u300cUP\u306a\u3089OK\u300d\u3067\u306f\u306a\u3044<\/h3> <p>IF\u72b6\u614b\u306e\u5207\u308a\u5206\u3051\u3067\u91cd\u8981\u306a\u306e\u306f\u3001(1)\u30ea\u30f3\u30af\u306e\u5b9f\u4f53\u3001(2)\u30a2\u30c9\u30ec\u30b9\u306e\u6210\u7acb\u3001(3)\u8fd1\u96a3\u89e3\u6c7a\u3001(4)\u30b5\u30a4\u30ba\u524d\u63d0\uff08MTU\uff09\u3067\u3059\u3002\u3053\u3053\u304c\u5065\u5168\u3060\u3068\u78ba\u4fe1\u3067\u304d\u3066\u521d\u3081\u3066\u3001\u6b21\u7ae0\u306e\u300c\u7d4c\u8def\uff08route\/rule\/VRF\uff09\u300d\u3092\u7591\u3046\u4fa1\u5024\u304c\u51fa\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec06\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7d4c\u8def\u7de8\uff1adefault route\u304c\u3042\u308b\u306e\u306b\u5c4a\u304b\u306a\u3044\u2014\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001VRF\u3001rp_filter\u3001firewalld\/nft<\/h2> <p>\u300cdefault route \u306f\u3042\u308b\u3002\u306a\u306e\u306b\u5c4a\u304b\u306a\u3044\u300d\u2015\u2015\u3053\u3053\u304cENONET\u8abf\u67fb\u306e\u5c71\u5834\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002\u7406\u7531\u306f\u3001Linux\u306e\u201c\u7d4c\u8def\u201d\u304c1\u672c\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u4ed5\u7d44\u307f\u304c\u91cd\u306a\u3063\u3066\u6700\u7d42\u5224\u65ad\u304c\u6c7a\u307e\u308b\u304b\u3089\u3067\u3059\u3002<\/p> <p>\u5fc3\u306e\u4f1a\u8a71\u306f\u3060\u3044\u305f\u3044\u3053\u308c\u3067\u3059\u3002<\/p> <p>\u300croute\u898b\u305f\u3051\u3069\u3001\u3042\u308b\u3058\u3083\u3093\u2026\u306a\u3093\u3067\uff1f\u300d<\/p> <p>\u7b54\u3048\u306f\u3001\u300c\u898b\u305f\u306e\u306f\u201c\u3042\u308b\u7d4c\u8def\u201d\u3067\u3042\u3063\u3066\u3001\u201c\u305d\u306e\u901a\u4fe1\u304c\u5b9f\u969b\u306b\u9078\u3076\u7d4c\u8def\u201d\u3067\u306f\u306a\u3044\u300d\u53ef\u80fd\u6027\u3067\u3059\u3002<\/p> <h3>\u307e\u305a\u306f ip route get \u3067\u201cOS\u306e\u6700\u7d42\u5224\u65ad\u201d\u3092\u898b\u308b<\/h3> <p>\u7d4c\u8def\u306e\u5207\u308a\u5206\u3051\u3067\u4e00\u756a\u624b\u5805\u3044\u306e\u306f\u3001\u5b9b\u5148\u306b\u5bfe\u3057\u3066OS\u304c\u4f55\u3092\u9078\u3093\u3060\u304b\u3092\u898b\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <pre><code>ip route get 203.0.113.10 # \u3069\u306e dev \/ via \/ src \u3092\u9078\u3076\u304b\u304c\u51fa\u308b<\/code><\/pre> <p>\u3053\u3053\u3067 src\uff08\u9001\u4fe1\u5143IP\uff09\u307e\u3067\u542b\u3081\u3066\u78ba\u5b9a\u3057\u307e\u3059\u3002\u9001\u4fe1\u5143\u304c\u5909\u308f\u308c\u3070\u3001\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u6761\u4ef6\u306b\u5f15\u3063\u304b\u304b\u308a\u3001\u5225\u30c6\u30fc\u30d6\u30eb\u3078\u98db\u3076\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <hr> <h3>1) \u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff08ip rule\uff09\uff1a\u898b\u3048\u3066\u3044\u306a\u3044\u201c\u5225\u30eb\u30fc\u30c8\u201d<\/h3> <p>ip route \u3060\u3051\u898b\u3066\u3044\u308b\u3068\u3001ip rule\uff08\u30eb\u30fc\u30eb\uff09\u306b\u3088\u308b\u30c6\u30fc\u30d6\u30eb\u5207\u66ff\u3092\u898b\u843d\u3068\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u9001\u4fe1\u5143IP\u3084fwmark\u3067\u3001\u30c6\u30fc\u30d6\u30eb\u304c\u5206\u5c90\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <pre><code>ip rule show ip route show table main ip route show table all<\/code><\/pre> <p>\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u3060\u3051ENONET\u306b\u306a\u308b\u5834\u5408\u3001\u30a2\u30d7\u30ea\u304c\u4f7f\u3046\u9001\u4fe1\u5143IP\u3001\u307e\u305f\u306f\u30de\u30fc\u30af\u4ed8\u3051\uff08\u30dd\u30ea\u30b7\u30fc\uff09\u304c\u95a2\u4e0e\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\uff08\u74b0\u5883\u306b\u3088\u3063\u3066\u306f\u3001\u7279\u5b9a\u30d7\u30ed\u30bb\u30b9\u3084\u30b5\u30fc\u30d3\u30b9\u306b\u5bfe\u3057\u3066mark\u304c\u4ed8\u304f\u8a2d\u8a08\u304c\u3042\u308a\u307e\u3059\uff09\u3002<\/p> <hr> <h3>2) VRF\uff1a\u540c\u3058\u30db\u30b9\u30c8\u3067\u3082\u201c\u5225\u306e\u4e16\u754c\u201d\u3092\u4f5c\u308b<\/h3> <p>VRF\u3092\u4f7f\u3063\u3066\u3044\u308b\u74b0\u5883\u3067\u306f\u3001\u300c\u540c\u4e00\u30db\u30b9\u30c8\u5185\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u5206\u96e2\u300d\u3055\u308c\u307e\u3059\u3002\u30db\u30b9\u30c8\u306e\u4e00\u822c\u30b3\u30de\u30f3\u30c9\u3067\u758e\u901a\u304c\u53d6\u308c\u3066\u3082\u3001\u5bfe\u8c61\u30d7\u30ed\u30bb\u30b9\u304c\u5c5e\u3059\u308bVRF\u304c\u9055\u3048\u3070\u3001\u5230\u9054\u6027\u306f\u5225\u7269\u3067\u3059\u3002<\/p> <p>VRF\u306f\u5f37\u529b\u3067\u3059\u304c\u3001\u904b\u7528\u8a2d\u8a08\uff08\u6240\u5c5e\u306e\u660e\u78ba\u5316\u3001\u76e3\u8996\u306e\u5206\u96e2\u3001\u30c8\u30e9\u30d6\u30eb\u6642\u306e\u5207\u308a\u623b\u3057\uff09\u304c\u7518\u3044\u3068\u3001\u8aac\u660e\u304c\u96e3\u3057\u3044\u969c\u5bb3\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u306f\u7d42\u76e4\u306e\u201c\u904b\u7528\u3067\u518d\u767a\u3092\u6f70\u3059\u201d\u4f0f\u7dda\u3067\u3059\u3002<\/p> <hr> <h3>3) rp_filter\uff08\u9006\u65b9\u5411\u30d5\u30a3\u30eb\u30bf\uff09\uff1a\u5e30\u308a\u9053\u306e\u4e0d\u6574\u5408\u3092\u5f3e\u304f<\/h3> <p>\u30de\u30eb\u30c1\u30db\u30fc\u30e0\uff08\u8907\u6570IF\/\u8907\u6570\u7d4c\u8def\uff09\u74b0\u5883\u3067\u3001rp_filter\u8a2d\u5b9a\u304c\u53b3\u3057\u3044\u3068\u3001\u975e\u5bfe\u79f0\u7d4c\u8def\uff08\u884c\u304d\u3068\u5e30\u308a\u304c\u9055\u3046\uff09\u3092\u5f3e\u3044\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u300c\u7d4c\u8def\u306f\u3042\u308b\u306e\u306b\u901a\u4fe1\u304c\u6210\u7acb\u3057\u306a\u3044\u300d\u72b6\u614b\u304c\u8d77\u304d\u307e\u3059\u3002<\/p> <p>\u305f\u3060\u3057\u3001\u3053\u306e\u7a2e\u306e\u8a2d\u5b9a\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u904b\u7528\u30dd\u30ea\u30b7\u30fc\u3068\u76f4\u7d50\u3057\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u7121\u95c7\u306b\u7de9\u3081\u305a\u3001\u307e\u305a\u306f\u201c\u306a\u305c\u975e\u5bfe\u79f0\u306b\u306a\u3063\u305f\u304b\u201d\u3092\u8ffd\u3046\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p> <hr> <h3>4) firewalld\/nft\/iptables\uff1a\u7d4c\u8def\u3067\u306f\u306a\u304f\u201c\u901a\u884c\u6b62\u3081\u201d<\/h3> <p>ENONET\u306e\u4e3b\u56e0\u3068\u3044\u3046\u3088\u308a\u3001\u73fe\u5834\u3067\u6df7\u7dda\u3057\u3084\u3059\u3044\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u7d4c\u8def\u306f\u6b63\u3057\u304f\u3066\u3082\u3001\u30d5\u30a3\u30eb\u30bf\u3067\u843d\u3061\u308c\u3070\u901a\u4fe1\u306f\u6210\u7acb\u3057\u307e\u305b\u3093\u3002\u3053\u3053\u306f\u300ctcpdump\u3067\u9001\u4fe1\u304c\u51fa\u3066\u3044\u308b\u304b\u300d\u300c\u8fd4\u308a\u304c\u6765\u3066\u3044\u308b\u304b\u300d\u3067\u89b3\u6e2c\u3057\u307e\u3059\u3002<\/p> <p>\u7279\u306b\u30b3\u30f3\u30c6\u30ca\u3084Kubernetes\u306f\u3001CNI\u304ciptables\/nft\u3092\u52d5\u7684\u306b\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5909\u66f4\u5c65\u6b74\u304c\u8ffd\u3048\u306a\u3044\u3068\u8aac\u660e\u304c\u96e3\u3057\u304f\u306a\u308b\u306e\u3067\u3001\u5f8c\u6bb5\u3067\u201c\u30ed\u30b0\u3068\u5909\u66f4\u7ba1\u7406\u201d\u306b\u7e4b\u3052\u307e\u3059\u3002<\/p> <hr> <h3>\u7ae0\u5185\u307e\u3068\u3081\uff1a\u7d4c\u8def\u306f\u201c1\u679a\u306e\u8868\u201d\u3067\u306f\u7d42\u308f\u3089\u306a\u3044<\/h3> <p>\u7d4c\u8def\u306e\u5207\u308a\u5206\u3051\u306f\u3001ip route\uff08\u30c6\u30fc\u30d6\u30eb\uff09\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3001ip rule\uff08\u5206\u5c90\uff09\u3001VRF\uff08\u5206\u96e2\uff09\u3001rp_filter\uff08\u9006\u65b9\u5411\u6574\u5408\uff09\u3001\u30d5\u30a3\u30eb\u30bf\uff08\u901a\u884c\u6b62\u3081\uff09\u304c\u91cd\u306a\u308a\u307e\u3059\u3002\u307e\u305a ip route get \u3067OS\u306e\u5224\u65ad\u3092\u56fa\u5b9a\u3057\u3001\u305d\u3053\u304b\u3089\u5206\u5c90\u8981\u56e0\u3092\u6f70\u3059\u306e\u304c\u6700\u77ed\u3067\u3059\u3002<\/p> <p>\u6b21\u7ae0\u3067\u306f\u3001\u30db\u30b9\u30c8\u3068\u30a2\u30d7\u30ea\u304c\u9055\u3046\u4e16\u754c\u3092\u898b\u308b\u4ee3\u8868\u683c\u300c\u540d\u524d\u7a7a\u9593\u30fb\u30b3\u30f3\u30c6\u30ca\u300d\u3092\u6398\u308a\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec07\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u540d\u524d\u7a7a\u9593\u30fb\u30b3\u30f3\u30c6\u30ca\u7de8\uff1a\u30db\u30b9\u30c8\u306fOK\u306a\u306e\u306b\u30a2\u30d7\u30ea\u3060\u3051NG\u2014netns\u3001K8s\/CNI\u306e\u5883\u754c<\/h2> <p>ENONET(64) \u304c\u300c\u30a2\u30d7\u30ea\u3060\u3051\u300d\u300c\u7279\u5b9a\u30b5\u30fc\u30d3\u30b9\u3060\u3051\u300d\u3067\u51fa\u308b\u3068\u304d\u3001\u307e\u305a\u7591\u3046\u3079\u304d\u306f <strong>\u201c\u540c\u3058\u30db\u30b9\u30c8\u4e0a\u306b\u3044\u3066\u3082\u3001\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u898b\u3066\u3044\u306a\u3044\u201d<\/strong> \u3053\u3068\u3067\u3059\u3002Linux\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u540d\u524d\u7a7a\u9593\uff08netns\uff09\u3067\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30fbIF\u30fbiptables\/nft\u30fb\u30bd\u30b1\u30c3\u30c8\u7a7a\u9593\u3092\u5206\u3051\u3089\u308c\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u3084Kubernetes\u306f\u3001\u307e\u3055\u306b\u3053\u306e\u4ed5\u7d44\u307f\u3092\u524d\u63d0\u306b\u52d5\u3044\u3066\u3044\u307e\u3059\u3002<\/p> <p>\u73fe\u5834\u306e\u672c\u97f3\u306f\u3053\u3046\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/p> <p>\u300c\u30db\u30b9\u30c8\u3067curl\u306f\u901a\u308b\u306e\u306b\u3001\u30a2\u30d7\u30ea\u3060\u3051\u201c\u30cd\u30c3\u30c8\u306b\u3044\u306a\u3044\u201d\u3063\u3066\u3069\u3046\u3044\u3046\u3053\u3068\uff1f\u300d<\/p> <p>\u7b54\u3048\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3001<strong>\u30db\u30b9\u30c8\u306ecurl\u3068\u3001\u30a2\u30d7\u30ea\u306e\u901a\u4fe1\u304c\u201c\u5225\u306e\u4e16\u754c\u201d\u304b\u3089\u51fa\u3066\u3044\u308b<\/strong>\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p> <hr> <h3>1) \u307e\u305a\u201c\u3069\u306e\u4e16\u754c\u3067\u201d\u78ba\u8a8d\u3057\u3066\u3044\u308b\u304b\u3092\u63c3\u3048\u308b<\/h3> <p>\u30b3\u30f3\u30c6\u30ca\/Pod\u306e\u4e2d\u3067\u5931\u6557\u3057\u3066\u3044\u308b\u306a\u3089\u3001\u78ba\u8a8d\u3082\u5fc5\u305a\u305d\u306e\u4e2d\u3067\u884c\u3044\u307e\u3059\uff08\u30db\u30b9\u30c8\u5074\u306e\u78ba\u8a8d\u3060\u3051\u3067\u306f\u30ba\u30ec\u307e\u3059\uff09\u3002\u6700\u4f4e\u9650\u3001\u6b21\u306e3\u70b9\u3092\u63a1\u53d6\u3057\u307e\u3059\u3002<\/p> <ul> <li><strong>IP\u30a2\u30c9\u30ec\u30b9<\/strong>\uff1aip addr<\/li> <li><strong>\u7d4c\u8def<\/strong>\uff1aip route\uff08\u53ef\u80fd\u306a\u3089 ip route get \u5b9b\u5148\uff09<\/li> <li><strong>\u540d\u524d\u89e3\u6c7a<\/strong>\uff1acat \/etc\/resolv.conf\u3001getent hosts \u5bfe\u8c61\u540d<\/li> <\/ul> <p>\u3053\u3053\u3067\u300c\u30a2\u30c9\u30ec\u30b9\u304c\u7121\u3044\u300d\u300cdefault route \u304c\u7121\u3044\u300d\u300cresolv.conf \u304c\u60f3\u5b9a\u5916\u300d\u306a\u3069\u304c\u51fa\u308c\u3070\u3001ENONET\u306e\u8aac\u660e\u304c\u4e00\u6c17\u306b\u5177\u4f53\u5316\u3057\u307e\u3059\u3002<\/p> <hr> <h3>2) Kubernetes\u3067\u8d77\u304d\u304c\u3061\u306a\u201c\u5883\u754c\u7531\u6765\u201d\u306e\u5931\u6557<\/h3> <p>Kubernetes\u74b0\u5883\u3067\u306f\u3001Pod\u306e\u901a\u4fe1\u306fCNI\uff08Container Network Interface\uff09\u5b9f\u88c5\u304c\u4f5c\u308b\u4eee\u60f3IF\u30fb\u7d4c\u8def\u30fb\u30d5\u30a3\u30eb\u30bf\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u5178\u578b\u4f8b\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p> <ul> <li><strong>Pod\u518d\u4f5c\u6210\u76f4\u5f8c\u306e\u77ac\u9593\u7684\u306a\u672a\u6e96\u5099<\/strong>\uff1a\u30a2\u30d7\u30ea\u8d77\u52d5\u304c\u65e9\u3059\u304e\u3066\u3001netns\u5185\u306eIF\/route\u304c\u307e\u3060\u6574\u3063\u3066\u3044\u306a\u3044<\/li> <li><strong>NetworkPolicy\/\u30d5\u30a3\u30eb\u30bf\u5909\u66f4\u306e\u5f71\u97ff<\/strong>\uff1a\u8a31\u53ef\u3055\u308c\u308b\u5b9b\u5148\u304c\u5909\u308f\u308a\u3001\u30a2\u30d7\u30ea\u3060\u3051\u5230\u9054\u4e0d\u80fd\u306b\u898b\u3048\u308b<\/li> <li><strong>\u30ce\u30fc\u30c9\u5074\u306e\u8a2d\u5b9a\u5909\u66f4<\/strong>\uff1anft\/iptables\u306e\u6319\u52d5\u5dee\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u30ab\u30fc\u30cd\u30eb\u66f4\u65b0\u306a\u3069\u3067CNI\u306e\u524d\u63d0\u304c\u5d29\u308c\u308b<\/li> <\/ul> <p>\u3053\u308c\u3089\u306f\u300c\u30b3\u30fc\u30c9\u306e\u554f\u984c\u300d\u3067\u306f\u306a\u304f\u300c\u5883\u754c\u306e\u8a2d\u8a08\u3068\u904b\u7528\u300d\u306e\u554f\u984c\u306b\u306a\u308a\u3084\u3059\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u5f8c\u534a\u306e\u7ae0\u3067\u6271\u3046\u201c\u76e3\u8996\u30fbrunbook\u30fb\u5909\u66f4\u7ba1\u7406\u201d\u304c\u52b9\u3044\u3066\u304d\u307e\u3059\uff08\u3053\u3053\u304c\u4f0f\u7dda\u3067\u3059\uff09\u3002<\/p> <hr> <h3>3) \u201c\u63a1\u53d6\u2192\u6bd4\u8f03\u201d\u3067\u8aac\u660e\u53ef\u80fd\u306a\u5f62\u306b\u3059\u308b<\/h3> <p>\u8cac\u4efb\u5206\u754c\u304c\u7d61\u3080\u73fe\u5834\u3067\u306f\u3001\u6280\u8853\u7684\u306b\u76f4\u3059\u3060\u3051\u3067\u306a\u304f\u300c\u306a\u305c\u305d\u3046\u8a00\u3048\u308b\u306e\u304b\u300d\u3092\u793a\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u304a\u3059\u3059\u3081\u306f\u3001<strong>\u30db\u30b9\u30c8\u3068Pod\uff08\u307e\u305f\u306f\u5bfe\u8c61\u30d7\u30ed\u30bb\u30b9\uff09\u306e\u5dee\u5206\u3092\u8868\u3067\u63c3\u3048\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002<\/p> <table style=\"border-collapse:collapse; width:100%;\"> <tr> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u89b3\u6e2c\u70b9<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u30db\u30b9\u30c8<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">Pod\/\u30b3\u30f3\u30c6\u30ca<\/th> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">ip addr<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u671f\u5f85\u306e\u30a2\u30c9\u30ec\u30b9<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u4ed8\u4e0e\u6f0f\u308c\/\u5225\u30a2\u30c9\u30ec\u30b9<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">ip route<\/td> <td style=\"border:1px solid #999; padding:8px;\">default\u3042\u308a<\/td> <td style=\"border:1px solid #999; padding:8px;\">default\u306a\u3057\/\u5225GW<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">resolv.conf<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u793e\u5185DNS<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u5225DNS\/\u691c\u7d22\u30c9\u30e1\u30a4\u30f3\u5dee<\/td> <\/tr> <\/table> <h3>\u3053\u306e\u7ae0\u306e\u307e\u3068\u3081<\/h3> <p>\u300c\u30db\u30b9\u30c8\u306f\u6b63\u5e38\u306a\u306e\u306b\u30a2\u30d7\u30ea\u3060\u3051ENONET\u300d\u306f\u3001netns\/\u30b3\u30f3\u30c6\u30ca\/K8s\u306e\u5883\u754c\u304c\u7d61\u3080\u3068\u201c\u666e\u901a\u306b\u8d77\u304d\u308b\u201d\u73fe\u8c61\u3067\u3059\u3002\u78ba\u8a8d\u306f\u5fc5\u305a\u540c\u3058\u4e16\u754c\uff08\u540c\u3058netns\uff09\u3067\u63c3\u3048\u3001\u63a1\u53d6\u2192\u6bd4\u8f03\u3067\u8aac\u660e\u53ef\u80fd\u306a\u6839\u62e0\u3092\u4f5c\u308b\u3053\u3068\u304c\u3001\u88ab\u5bb3\u6700\u5c0f\u5316\u3068\u53ce\u675f\u306e\u8fd1\u9053\u3067\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec08\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u540d\u524d\u89e3\u6c7a\u7de8\uff1aDNS\u306e\u9045\u5ef6\u304c\u201c\u30cd\u30c3\u30c8\u306b\u3044\u306a\u3044\u201d\u3092\u6f14\u51fa\u3059\u308b\u2014resolv.conf\u3001systemd-resolved\u3001\u691c\u7d22\u30c9\u30e1\u30a4\u30f3<\/h2> <p>ENONET\u306f\u300c\u7d4c\u8def\u3084IF\u306e\u554f\u984c\u300d\u3067\u51fa\u308b\u3053\u3068\u304c\u591a\u3044\u4e00\u65b9\u3001\u73fe\u5834\u3067\u6df7\u7dda\u3057\u3084\u3059\u3044\u306e\u304c <strong>\u540d\u524d\u89e3\u6c7a<\/strong> \u3067\u3059\u3002DNS\u304c\u9045\u3044\/\u63fa\u308c\u308b\u3068\u3001\u30a2\u30d7\u30ea\u306f\u300c\u63a5\u7d9a\u3067\u304d\u306a\u3044\u300d\u3060\u3051\u3092\u8868\u306b\u51fa\u3057\u3001\u7d50\u679c\u3068\u3057\u3066\u201c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u58ca\u308c\u305f\u201d\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u3053\u3053\u3092\u5207\u308a\u5206\u3051\u3066\u304a\u304f\u3068\u3001\u30e0\u30c0\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5909\u66f4\u3092\u907f\u3051\u3089\u308c\u307e\u3059\u3002<\/p> <p>\u5fc3\u306e\u4f1a\u8a71\u306f\u3053\u3046\u3067\u3059\u3002<\/p> <p>\u300c\u758e\u901a\u304c\u60aa\u3044\u2026\u3044\u3084\u3001\u305d\u3082\u305d\u3082\u540d\u524d\u304c\u5f15\u3051\u3066\u306a\u3044\uff1f\u3067\u3082\u6642\u3005\u52d5\u304f\u3093\u3060\u3088\u306a\u300d<\/p> <hr> <h3>1) \u307e\u305a\u300c\u540d\u524d\u2192IP\u300d\u3092OS\u6a19\u6e96\u306e\u7d4c\u8def\u3067\u78ba\u8a8d\u3059\u308b<\/h3> <p>\u30a2\u30d7\u30ea\u304c\u4f7f\u3046\u89e3\u6c7a\u7d4c\u8def\u3068\u5408\u308f\u305b\u308b\u306b\u306f\u3001\u307e\u305a <strong>getent hosts<\/strong> \u304c\u624b\u5805\u3044\u3067\u3059\uff08glibc\/NSS\u7d4c\u7531\u3067\u3001\/etc\/hosts \u3084DNS\u306a\u3069\u3092\u7dcf\u5408\u3057\u3066\u5f15\u304d\u307e\u3059\uff09\u3002<\/p> <pre><code>getent hosts example.com<\/code><\/pre> <p>\u3053\u3053\u3067\u4e0d\u5b89\u5b9a\u306a\u3089\u3001ENONET\u4ee5\u524d\u306b\u300c\u5b9b\u5148IP\u304c\u5b9a\u307e\u3063\u3066\u3044\u306a\u3044\u300d\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u9006\u306b\u3053\u3053\u304c\u5b89\u5b9a\u3057\u3066\u3044\u308c\u3070\u3001\u4ee5\u5f8c\u306f\u7d4c\u8def\u3084IF\u306e\u554f\u984c\u306b\u96c6\u4e2d\u3067\u304d\u307e\u3059\u3002<\/p> <hr> <h3>2) \/etc\/resolv.conf \u306e\u4e2d\u8eab\u306f\u201c\u5b9f\u4f53\u201d\u304b\u201c\u751f\u6210\u7269\u201d\u304b<\/h3> <p>Linux\u3067\u306f \/etc\/resolv.conf \u304c\u3001NetworkManager \u3084 systemd-resolved \u306a\u3069\u306b\u3088\u3063\u3066\u751f\u6210\u30fb\u5207\u66ff\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30ca\/Pod\u5185\u3067\u306f\u3001\u30db\u30b9\u30c8\u3068\u5225\u306eresolv.conf\u304c\u7f6e\u304b\u308c\u307e\u3059\u3002\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p> <ul> <li><strong>nameserver<\/strong> \u304c\u60f3\u5b9a\u306eDNS\u304b\uff08\u793e\u5185DNS\/\u30af\u30e9\u30a6\u30c9DNS\u306a\u3069\uff09<\/li> <li><strong>search<\/strong>\uff08\u691c\u7d22\u30c9\u30e1\u30a4\u30f3\uff09\u304c\u904e\u5270\u3067\u3001\u554f\u3044\u5408\u308f\u305b\u304c\u81a8\u3089\u3093\u3067\u3044\u306a\u3044\u304b<\/li> <li><strong>options timeout\/attempts<\/strong> \u306e\u8a2d\u5b9a\u3067\u5f85\u3061\u6642\u9593\u304c\u5897\u3048\u3066\u3044\u306a\u3044\u304b<\/li> <\/ul> <p>DNS\u9045\u5ef6\u306f\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0d\u826f\u306b\u898b\u3048\u308b\u300d\u5178\u578b\u8981\u56e0\u3067\u3059\u3002\u3068\u304f\u306b\u691c\u7d22\u30c9\u30e1\u30a4\u30f3\u304c\u9577\u3044\u3068\u3001\u77ed\u3044\u540d\u524d\u3092\u5f15\u304f\u305f\u3073\u306b\u8907\u6570\u554f\u3044\u5408\u308f\u305b\u304c\u767a\u751f\u3057\u3001\u30a2\u30d7\u30ea\u5074\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084\u30ea\u30c8\u30e9\u30a4\u3068\u7d61\u3093\u3067\u201c\u8a70\u307e\u308a\u201d\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p> <hr> <h3>3) systemd-resolved \u3092\u4f7f\u3046\u74b0\u5883\u306e\u6ce8\u610f\u70b9<\/h3> <p>systemd-resolved \u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u5b9f\u969b\u306e\u540d\u524d\u89e3\u6c7a\u306f\u30b9\u30bf\u30d6\uff08127.0.0.53\u7b49\uff09\u7d4c\u7531\u306b\u306a\u308a\u3001\/etc\/resolv.conf \u306e\u898b\u3048\u65b9\u304c\u76f4\u611f\u3068\u30ba\u30ec\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3044\u3046\u74b0\u5883\u3067\u306f\u3001\u53ef\u80fd\u306a\u3089 resolvectl \u3067\u72b6\u6cc1\u3092\u63a1\u53d6\u3059\u308b\u3068\u8aac\u660e\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\uff08\u4f7f\u3048\u306a\u3044\u74b0\u5883\u3082\u3042\u308a\u307e\u3059\uff09\u3002<\/p> <p>\u91cd\u8981\u306a\u306e\u306f\u300cDNS\u304c\u3069\u3053\u304b\u300d\u3060\u3051\u3067\u306a\u304f\u3001<strong>\u3069\u306eIF\u306b\u3069\u306eDNS\u8a2d\u5b9a\u304c\u7d10\u3065\u3044\u3066\u3044\u308b\u304b<\/strong>\u3067\u3059\u3002VPN\u63a5\u7d9a\u3067\u201cDNS\u3060\u3051\u793e\u5185\u5411\u3051\u306b\u5207\u66ff\u201d\u304c\u5165\u308b\u69cb\u6210\u3060\u3068\u3001\u63a5\u7d9a\/\u5207\u65ad\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u63fa\u308c\u304c\u969c\u5bb3\u306e\u5f15\u304d\u91d1\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>4) \u540d\u524d\u89e3\u6c7a\u304c\u539f\u56e0\u306e\u3068\u304d\u306e\u201c\u6b63\u3057\u3044\u53ce\u675f\u201d<\/h3> <p>\u540d\u524d\u89e3\u6c7a\u304c\u539f\u56e0\u306a\u3089\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u8def\u3092\u3044\u3058\u308b\u3088\u308a\u3001DNS\u8a2d\u5b9a\u30fb\u691c\u7d22\u30c9\u30e1\u30a4\u30f3\u30fb\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u8a2d\u8a08\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u8a2d\u8a08\u306e\u898b\u76f4\u3057\u3067\u201c\u53ce\u675f\u201d\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u5927\u5207\u306a\u306e\u306f\u300c\u4e00\u822c\u8ad6\u306eDNS\u9ad8\u901f\u5316\u300d\u3067\u306f\u306a\u304f\u3001<strong>\u305d\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u5236\u7d04\uff08\u793e\u5185DNS\u3001\u62e0\u70b9\u3001VPN\u3001\u76e3\u67fb\u8981\u4ef6\uff09<\/strong>\u306b\u5408\u308f\u305b\u305f\u843d\u3068\u3057\u3069\u3053\u308d\u3092\u4f5c\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <h3>\u3053\u306e\u7ae0\u306e\u307e\u3068\u3081<\/h3> <p>DNS\u306f\u3001\u969c\u5bb3\u3092\u201c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306e\u4e0d\u8abf\u201d\u306b\u898b\u305b\u308b\u4ee3\u8868\u8981\u56e0\u3067\u3059\u3002\u307e\u305a getent \u3067\u5b89\u5b9a\u6027\u3092\u78ba\u8a8d\u3057\u3001resolv.conf\uff08\u751f\u6210\u5143\u3082\u542b\u3080\uff09\u3068\u691c\u7d22\u30c9\u30e1\u30a4\u30f3\u306e\u8a2d\u8a08\u3092\u62bc\u3055\u3048\u308b\u3068\u3001\u7121\u99c4\u306a\u4f5c\u696d\u304c\u6e1b\u308a\u307e\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u3053\u3053\u307e\u3067\u306e\u8981\u7d20\u3092\u675f\u306d\u3066\u300c\u73fe\u5834\u3067\u52dd\u3064\u5207\u308a\u5206\u3051\u624b\u9806\u300d\u3092\u3001\u8a3c\u62e0\u304c\u6b8b\u308b\u5f62\u3067\u7d44\u307f\u7acb\u3066\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec09\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u73fe\u5834\u3067\u52dd\u3064\u5207\u308a\u5206\u3051\u624b\u9806\u2014ip\/ss\/ping\u3001tcpdump\u3001strace\u3001\u30ed\u30b0\u76f8\u95a2\u3067\u300c\u3053\u3053\u304c\u58ca\u308c\u3066\u308b\u300d\u3092\u7279\u5b9a<\/h2> <p>\u3053\u3053\u307e\u3067\u3067\u3001ENONET\u306e\u539f\u56e0\u304c\u300c\u540d\u524d\u7a7a\u9593\uff0fIF\u72b6\u614b\uff0f\u7d4c\u8def\uff0f\u540d\u524d\u89e3\u6c7a\u300d\u306b\u53ce\u675f\u3059\u308b\u8a71\u3092\u3057\u307e\u3057\u305f\u3002\u3053\u3053\u304b\u3089\u306f\u5b9f\u52d9\u306e\u578b\u3067\u3059\u3002\u30dd\u30a4\u30f3\u30c8\u306f\u3001<strong>\u77ed\u6642\u9593\u3067\u201c\u58ca\u308c\u3066\u3044\u308b\u5834\u6240\u201d\u3092\u6307\u5dee\u305b\u308b\u8a3c\u62e0<\/strong>\u3092\u96c6\u3081\u308b\u3053\u3068\u3002\u3053\u308c\u304c\u3042\u308b\u3068\u3001\u95a2\u4fc2\u8005\u8abf\u6574\u30fb\u4fdd\u5b88\u30d9\u30f3\u30c0\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u62c5\u5f53\u3068\u306e\u4f1a\u8a71\u304c\u4e00\u6c17\u306b\u9032\u307f\u307e\u3059\u3002<\/p> <p>\u73fe\u5834\u306e\u72ec\u308a\u8a00\u306f\u3053\u3046\u3067\u3059\u3002<\/p> <p>\u300c\u7d50\u5c40\u3001\u201c\u3069\u3053\u304c\u60aa\u3044\u201d\u3063\u3066\u4e00\u8a00\u3067\u8a00\u3048\u306a\u3044\u3068\u7d42\u308f\u3089\u306a\u3044\u3093\u3060\u3088\u306a\u2026\u300d<\/p> <hr> <h3>\u30b9\u30c6\u30c3\u30d70\uff1a\u5909\u66f4\u305b\u305a\u3001\u63a1\u53d6\u304b\u3089\u59cb\u3081\u308b\uff08\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u4f5c\u308b\uff09<\/h3> <p>\u307e\u305a\u306f\u201c\u3044\u3064\u304b\u3089\u30fb\u4f55\u304c\u30fb\u3069\u306e\u7bc4\u56f2\u3067\u201d\u3092\u63c3\u3048\u307e\u3059\u3002\u6700\u5c0f\u3067\u3088\u3044\u306e\u3067\u3001\u6642\u523b\u3068\u30ed\u30b0\u3092\u5408\u308f\u305b\u307e\u3059\u3002<\/p> <ul> <li>date \/ timedatectl\uff08\u6642\u523b\u540c\u671f\u306e\u524d\u63d0\uff09<\/li> <li>\u30a2\u30d7\u30ea\u30ed\u30b0\uff08ENONET\u304c\u51fa\u305f\u6642\u523b\u30fb\u5b9b\u5148\u30fb\u983b\u5ea6\uff09<\/li> <li>journalctl\uff08networkd\/NetworkManager\/VPN\/CNI\/\u30ab\u30fc\u30cd\u30eb\u306e\u30a4\u30d9\u30f3\u30c8\uff09<\/li> <\/ul> <p>\u3053\u306e\u6bb5\u968e\u3067\u300cVPN\u518d\u63a5\u7d9a\u300d\u300cIF\u306edown\/up\u300d\u300cDNS\u5207\u66ff\u300d\u306a\u3069\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u898b\u3048\u305f\u3089\u3001\u5f8c\u306e\u5207\u308a\u5206\u3051\u304c\u901f\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u30b9\u30c6\u30c3\u30d71\uff1a\u540c\u3058\u4e16\u754c\uff08\u540c\u3058netns\uff09\u3067 \u201cIP\/\u7d4c\u8def\/DNS\u201d \u3092\u56fa\u5b9a\u3059\u308b<\/h3> <ul> <li>ip addr<\/li> <li>ip route\uff08\u53ef\u80fd\u306a\u3089 ip route get \u5b9b\u5148\uff09<\/li> <li>getent hosts \u5bfe\u8c61\u540d \/ cat \/etc\/resolv.conf<\/li> <\/ul> <p>\u3053\u3053\u3067\u5d29\u308c\u3066\u3044\u308c\u3070\u3001\u539f\u56e0\u5206\u985e\u304c\u307b\u307c\u6c7a\u307e\u308a\u307e\u3059\u3002\u5d29\u308c\u3066\u3044\u306a\u3044\u306a\u3089\u6b21\u3078\u9032\u307f\u307e\u3059\u3002<\/p> <hr> <h3>\u30b9\u30c6\u30c3\u30d72\uff1ass \u3067\u30bd\u30b1\u30c3\u30c8\u306e\u8a70\u307e\u308a\u3092\u78ba\u8a8d\u3059\u308b<\/h3> <p>TCP\u306a\u3089\u3001\u63a5\u7d9a\u304cSYN-SENT\u3067\u8a70\u307e\u3063\u3066\u3044\u308b\u306e\u304b\u3001ESTAB\u306a\u306e\u306b\u5fdc\u7b54\u304c\u306a\u3044\u306e\u304b\u3067\u666f\u8272\u304c\u5909\u308f\u308a\u307e\u3059\u3002UDP\u3067\u3082\u3001\u30d7\u30ed\u30bb\u30b9\u304c\u3069\u306e\u30dd\u30fc\u30c8\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3092\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p> <pre><code>ss -tnp ss -unp<\/code><\/pre> <hr> <h3>\u30b9\u30c6\u30c3\u30d73\uff1atcpdump\u3067\u300c\u51fa\u3066\u3044\u308b\u304b\uff0f\u8fd4\u3063\u3066\u3044\u308b\u304b\u300d\u3092\u898b\u308b<\/h3> <p>\u7d4c\u8def\u3084\u30d5\u30a3\u30eb\u30bf\u306e\u7591\u3044\u3092\u56fa\u3081\u308b\u306b\u306f\u3001\u30d1\u30b1\u30c3\u30c8\u89b3\u6e2c\u304c\u5f37\u3044\u3067\u3059\u3002\u9001\u4fe1\u304c\u51fa\u3066\u3044\u306a\u3044\u306a\u3089\u3001\u524d\u63d0\uff08IF\/route\/netns\uff09\u304c\u5d29\u308c\u3066\u3044\u308b\u3002\u9001\u4fe1\u304c\u51fa\u3066\u3044\u3066\u8fd4\u308a\u304c\u306a\u3044\u306a\u3089\u3001\u5bfe\u5411\u3084\u9014\u4e2d\u7d4c\u8def\u3001\u30d5\u30a3\u30eb\u30bf\u3001MTU\u306a\u3069\u5225\u8ad6\u70b9\u304c\u6fc3\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u305f\u3060\u3057\u672c\u756a\u3067\u306f\u89b3\u6e2c\u7bc4\u56f2\u30fb\u500b\u4eba\u60c5\u5831\u30fb\u6a5f\u5bc6\u8981\u4ef6\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u63a1\u53d6\u306f\u201c\u6700\u5c0f\u30fb\u77ed\u6642\u9593\u201d\u3067\u884c\u3044\u3001\u4fdd\u5b58\u3068\u53d6\u308a\u6271\u3044\u30eb\u30fc\u30eb\u3092\u5b88\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u30b9\u30c6\u30c3\u30d74\uff1astrace\u3067\u300c\u3069\u306esyscall\u304c\u3001\u4f55\u306eerrno\u3067\u300d\u843d\u3061\u305f\u304b\u3092\u78ba\u5b9a\u3059\u308b<\/h3> <p>\u30a2\u30d7\u30ea\u304c\u5410\u304fENONET\u3060\u3051\u3067\u306f\u3001\u6839\u62e0\u304c\u5f31\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u53ef\u80fd\u306a\u3089\u77ed\u6642\u9593\u3060\u3051strace\u3067\u5883\u754c\u3092\u62bc\u3055\u3048\u307e\u3059\u3002<\/p> <pre><code>strace -f -tt -o \/tmp\/trace.log -e trace=network,connect,sendto,recvfrom,getaddrinfo &lt;\u5bfe\u8c61\u30d7\u30ed\u30bb\u30b9\/\u518d\u73fe\u30b3\u30de\u30f3\u30c9&gt;<\/code><\/pre> <p>\u3053\u308c\u3067\u300cconnect\u304cENONET\u300d\u300csendto\u304cENONET\u300d\u306e\u3088\u3046\u306b\u201c\u5931\u6557\u70b9\u201d\u304c\u8a00\u8a9e\u5316\u3067\u304d\u3001\u539f\u56e0\u5206\u985e\uff08\u7d4c\u8def\/IF\/netns\uff09\u3078\u7dba\u9e97\u306b\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002<\/p> <h3>\u3053\u306e\u7ae0\u306e\u307e\u3068\u3081<\/h3> <p>ENONET\u5bfe\u5fdc\u306f\u3001\u52d8\u3084\u7d4c\u9a13\u3060\u3051\u3060\u3068\u9577\u671f\u5316\u3057\u304c\u3061\u3067\u3059\u3002\u63a1\u53d6\u2192\u540c\u4e00\u4e16\u754c\u3067\u78ba\u8a8d\u2192ss\u2192tcpdump\u2192strace\u3001\u3068\u3044\u3046\u9806\u3067\u201c\u8a3c\u62e0\u306e\u7dda\u201d\u3092\u4f5c\u308b\u3068\u3001\u53ce\u675f\u304c\u901f\u304f\u306a\u308a\u3001\u8aac\u660e\u8cac\u4efb\u3082\u679c\u305f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec10\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u306a\u308b\u307b\u3069\u3068\u601d\u3048\u308b\u5e30\u7d50\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u201c\u30b1\u30fc\u30d6\u30eb\u201d\u3067\u306f\u306a\u304f\u201c\u524d\u63d0\u6761\u4ef6\u306e\u96c6\u5408\u201d\u2014\u76e3\u8996\u30fbrunbook\u30fb\u81ea\u52d5\u5fa9\u65e7\u3067\u518d\u767a\u3092\u6f70\u3059<\/h2> <p>ENONET(64) \u3092\u8ffd\u3044\u304b\u3051\u3066\u3044\u308b\u3068\u3001\u6700\u5f8c\u306f\u3060\u3044\u305f\u3044\u540c\u3058\u7d50\u8ad6\u306b\u305f\u3069\u308a\u7740\u304d\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u300c\u7dda\u304c\u3064\u306a\u304c\u3063\u3066\u3044\u308b\u304b\u300d\u3067\u306f\u306a\u304f\u3001<strong>\u201c\u524d\u63d0\u6761\u4ef6\u304c\u63c3\u3063\u3066\u3044\u308b\u304b\u201d<\/strong>\u3067\u6210\u7acb\u3057\u3066\u3044\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p> <p>\u524d\u63d0\u6761\u4ef6\u3068\u306f\u3001\u3053\u3053\u307e\u3067\u6271\u3063\u3066\u304d\u305f\u3082\u306e\u2015\u2015\u540d\u524d\u7a7a\u9593\u3001IF\u72b6\u614b\u3001\u7d4c\u8def\u3001\u540d\u524d\u89e3\u6c7a\u2015\u2015\u305d\u3057\u3066\u3001\u305d\u308c\u3089\u3092\u52d5\u304b\u3059\u904b\u7528\uff08\u5909\u66f4\u30fb\u518d\u8d77\u52d5\u30fb\u81ea\u52d5\u5316\u30fb\u6a29\u9650\u5206\u754c\uff09\u3067\u3059\u3002<\/p> <hr> <h3>ENONET\u304c\u201c\u518d\u767a\u201d\u3057\u3084\u3059\u3044\u30c1\u30fc\u30e0\u306e\u5171\u901a\u70b9<\/h3> <p>\u3053\u308c\u306f\u500b\u793e\u6279\u5224\u3067\u306f\u306a\u304f\u3001\u69cb\u9020\u3068\u3057\u3066\u8d77\u304d\u304c\u3061\u306a\u8a71\u3067\u3059\u3002ENONET\u304c\u9577\u5f15\u304f\u73fe\u5834\u306f\u3001\u6b21\u306e\u6761\u4ef6\u3092\u62b1\u3048\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <ul> <li>\u30b7\u30b9\u30c6\u30e0\u304c\u30ec\u30ac\u30b7\u30fc\u3067\u3001\u6b62\u3081\u3089\u308c\u306a\u3044\uff08\u691c\u8a3c\u304c\u672c\u756a\u5bc4\u308a\u306b\u306a\u308a\u304c\u3061\uff09<\/li> <li>\u5883\u754c\u304c\u591a\u3044\uff08VPN\u3001\u62e0\u70b9\u9593\u3001\u9589\u57df\u3001\u30b3\u30f3\u30c6\u30ca\u3001K8s\u3001\u8907\u6570\u7d4c\u8def\uff09<\/li> <li>\u5909\u66f4\u304c\u591a\u3044\u306e\u306b\u3001\u5909\u66f4\u5c65\u6b74\u3068\u89b3\u6e2c\u70b9\u304c\u63c3\u3063\u3066\u3044\u306a\u3044\uff08\u300c\u3044\u3064\u4f55\u304c\u5909\u308f\u3063\u305f\u304b\u300d\u304c\u8ffd\u3048\u306a\u3044\uff09<\/li> <li>\u8cac\u4efb\u5206\u754c\u304c\u66d6\u6627\uff08\u30a2\u30d7\u30ea\uff0f\u30a4\u30f3\u30d5\u30e9\uff0f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff0f\u904b\u7528\u306e\u201c\u9593\u201d\u3067\u8a70\u307e\u308b\uff09<\/li> <\/ul> <p>\u3053\u3046\u3044\u3046\u6761\u4ef6\u306e\u3068\u304d\u3001\u969c\u5bb3\u306f\u201c\u6280\u8853\u201d\u3060\u3051\u3067\u306a\u304f\u201c\u8aac\u660e\u201d\u3067\u3082\u8a70\u307e\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u518d\u767a\u9632\u6b62\u306f\u300c\u6a5f\u80fd\u8ffd\u52a0\u300d\u3088\u308a<strong>\u5834\u3092\u6574\u3048\u308b<\/strong>\u65b9\u5411\u304c\u52b9\u304d\u307e\u3059\u3002<\/p> <hr> <h3>\u518d\u767a\u9632\u6b62\u306f\u300c\u89b3\u6e2c\u3067\u304d\u308b\u524d\u63d0\u6761\u4ef6\u300d\u3092\u4f5c\u308b\u3053\u3068<\/h3> <p>ENONET\u5bfe\u7b56\u3067\u5f37\u3044\u306e\u306f\u3001\u6b21\u306e3\u70b9\u3092\u201c\u6bce\u56de\u53d6\u308c\u308b\u5f62\u201d\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <table style=\"border-collapse:collapse; width:100%;\"> <tr> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u72d9\u3044<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u5177\u4f53\u7b56\uff08\u4f8b\uff09<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u5f97\u3089\u308c\u308b\u52b9\u679c<\/th> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u524d\u63d0\u6761\u4ef6\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u5316<\/td> <td style=\"border:1px solid #999; padding:8px;\">ip addr \/ ip route \/ ip rule \/ resolv.conf \/ ss \u306e\u5b9a\u671f\u63a1\u53d6\uff08\u5dee\u5206\u30ed\u30b0\u5316\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u300c\u3044\u3064\u5d29\u308c\u305f\u304b\u300d\u304c\u8ffd\u3048\u308b\uff08\u8aac\u660e\u304c\u901f\u3044\uff09<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">runbook\uff08\u5207\u308a\u5206\u3051\u624b\u9806\uff09\u306e\u56fa\u5b9a<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u672c\u8a18\u4e8b\u306esec04\u301csec09\u306e\u624b\u9806\u3092\u3001\u74b0\u5883\u56fa\u6709\u306e\u30b3\u30de\u30f3\u30c9\u306b\u843d\u3068\u3057\u3066\u6587\u66f8\u5316<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u5c5e\u4eba\u6027\u3092\u4e0b\u3052\u3001\u53ce\u675f\u304c\u901f\u304f\u306a\u308b<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u5909\u66f4\u3068\u5fa9\u65e7\u306e\u201c\u5b89\u5168\u5f01\u201d<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u5909\u66f4\u524d\u5f8c\u306e\u72b6\u614b\u63a1\u53d6\u3001\u6bb5\u968e\u7684\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3001\u5f71\u97ff\u7bc4\u56f2\u306e\u9650\u5b9a<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u88ab\u5bb3\u6700\u5c0f\u5316\u30fb\u8edf\u7740\u9678\u304c\u3057\u3084\u3059\u3044<\/td> <\/tr> <\/table> <hr> <h3>\u201c\u81ea\u52d5\u5fa9\u65e7\u201d\u3092\u5165\u308c\u308b\u306a\u3089\u3001\u5148\u306b\u300c\u8aa4\u5fa9\u65e7\u300d\u3092\u9632\u3050<\/h3> <p>\u81ea\u52d5\u5fa9\u65e7\uff08\u518d\u8d77\u52d5\u30fb\u518d\u63a5\u7d9a\u30fb\u518d\u89e3\u6c7a\uff09\u306f\u5f37\u529b\u3067\u3059\u304c\u3001\u4e71\u66b4\u306b\u5165\u308c\u308b\u3068\u30ed\u30b0\u304c\u57cb\u307e\u308a\u3001\u539f\u56e0\u304c\u96a0\u308c\u307e\u3059\u3002\u304a\u3059\u3059\u3081\u306f\u300c\u6761\u4ef6\u4ed8\u304d\u30fb\u6bb5\u968e\u7684\u300d\u3067\u3059\u3002<\/p> <ul> <li>\u307e\u305a\u306f<strong>\u89b3\u6e2c\uff08\u63a1\u53d6\uff09<\/strong>\u3092\u512a\u5148\u3057\u3001\u5931\u6557\u306e\u77ac\u9593\u3092\u6b8b\u3059<\/li> <li>\u30ea\u30c8\u30e9\u30a4\u306f\u56de\u6570\u30fb\u9593\u9694\u3092\u5236\u5fa1\u3057\u3001\u7121\u9650\u30eb\u30fc\u30d7\u306b\u3057\u306a\u3044\uff08\u30b9\u30c8\u30c3\u30d1\u30fc\u3092\u7f6e\u304f\uff09<\/li> <li>\u5fa9\u65e7\u30a2\u30af\u30b7\u30e7\u30f3\u306e\u524d\u5f8c\u3067\u3001\u72b6\u614b\uff08ip\/route\/DNS\/ss\uff09\u3092\u81ea\u52d5\u8a18\u9332\u3059\u308b<\/li> <\/ul> <p>\u3053\u308c\u3060\u3051\u3067\u3001\u969c\u5bb3\u5bfe\u5fdc\u306f\u300c\u6ce5\u6cbc\u300d\u304b\u3089\u300c\u624b\u9806\u5316\u300d\u306b\u5bc4\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p> <hr> <h3>\u4e00\u822c\u8ad6\u306e\u9650\u754c\uff1a\u3053\u3053\u304b\u3089\u5148\u306f\u201c\u3042\u306a\u305f\u306e\u69cb\u6210\u201d\u304c\u7b54\u3048\u3092\u6c7a\u3081\u308b<\/h3> <p>\u3053\u3053\u307e\u3067\u306e\u8a71\u306f\u3001ENONET\u3092\u6280\u8853\u7684\u306b\u6574\u7406\u3059\u308b\u305f\u3081\u306e\u4e00\u822c\u8ad6\u3067\u3059\u3002\u305f\u3060\u3001\u5b9f\u52d9\u3067\u306f\u6b21\u306e\u8981\u56e0\u3067\u7b54\u3048\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p> <ul> <li>\u9589\u57df\/VPN\/\u62e0\u70b9\u9593\u306a\u3069\u306e\u5883\u754c\u8a2d\u8a08\uff08\u3069\u306e\u7d4c\u8def\u3092\u6b63\u3068\u3059\u308b\u304b\uff09<\/li> <li>Kubernetes\/CNI\/NetworkPolicy \u306e\u5b9f\u88c5\u5dee\uff08\u3069\u3053\u304c\u72b6\u614b\u3092\u4f5c\u308b\u304b\uff09<\/li> <li>\u76e3\u67fb\u30fbSLA\u30fb\u5909\u66f4\u624b\u9806\uff08\u4f55\u3092\u201c\u3084\u3063\u3066\u3088\u3044\u201d\u304b\u3001\u3044\u3064\u3084\u308c\u308b\u304b\uff09<\/li> <li>\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u306e\u5236\u7d04\uff08\u6b62\u3081\u3089\u308c\u306a\u3044\u3001\u5909\u66f4\u3067\u304d\u306a\u3044\u3001\u89e6\u308c\u308b\u7bc4\u56f2\u304c\u9650\u3089\u308c\u308b\uff09<\/li> <\/ul> <p>\u3064\u307e\u308a\u3001\u6700\u5f8c\u306f\u300c\u3053\u306e\u69cb\u6210\u30fb\u3053\u306e\u5951\u7d04\u30fb\u3053\u306e\u904b\u7528\u300d\u3067\u3001\u3069\u306e\u9078\u629e\u304c\u5b89\u5168\u304b\u3092\u6c7a\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u307e\u3067\u542b\u3081\u3066\u201c\u53ce\u675f\u201d\u3055\u305b\u305f\u3044\u3068\u304d\u306f\u3001\u7b2c\u4e09\u8005\u306e\u8996\u70b9\u304c\u52b9\u304d\u307e\u3059\u3002<\/p> <h3>\u6b21\u306e\u4e00\u6b69\uff1a\u56f0\u3063\u305f\u3068\u304d\u306b\u3001\u76f8\u8ac7\u5148\u30921\u3064\u6301\u3063\u3066\u304a\u304f<\/h3> <p>ENONET\u306f\u3001\u539f\u56e0\u304c1\u3064\u3068\u306f\u9650\u3089\u305a\u3001\u5883\u754c\u304c\u5897\u3048\u308b\u307b\u3069\u8aac\u660e\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3082\u3057\u300c\u4eca\u306e\u72b6\u6cc1\u3092\u6574\u7406\u3057\u3066\u3001\u6700\u77ed\u3067\u53ce\u675f\u3055\u305b\u305f\u3044\u300d\u300c\u9867\u5ba2\u30fb\u793e\u5185\u3078\u306e\u8aac\u660e\u3082\u542b\u3081\u3066\u6574\u3048\u305f\u3044\u300d\u3068\u611f\u3058\u305f\u3089\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\u3000\u96fb\u8a71\u756a\u53f7\uff1a0120-838-831<\/p> <p>\u201c\u4f5c\u696d\u3092\u5897\u3084\u3059\u63d0\u6848\u201d\u3067\u306f\u306a\u304f\u3001\u201c\u5fc5\u8981\u306a\u89b3\u6e2c\u70b9\u3092\u63c3\u3048\u3066\u3001\u53ce\u675f\u3055\u305b\u308b\u305f\u3081\u306e\u9053\u7b4b\u201d\u304b\u3089\u4e00\u7dd2\u306b\u7d44\u307f\u7acb\u3066\u307e\u3059\u3002<\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec11\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u4ed8\u9332\uff1a\u73fe\u5728\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u5404\u7a2e\u3067\u306e\u6ce8\u610f\u70b9\u2014ENONET\u3092\u300c\u63e1\u308a\u3064\u3076\u3055\u305a\u300d\u300c\u8aa4\u8a3a\u3057\u306a\u3044\u300d\u305f\u3081\u306b<\/h2> <p>ENONET(64) \u306fLinux\u30ab\u30fc\u30cd\u30eb\u304c\u8fd4\u3059 errno \u306e\u4e00\u3064\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3067\u306f\u300c\u4f8b\u5916\u300d\u3084\u300c\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u300d\u3068\u3057\u3066\u898b\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u8a00\u8a9e\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u3088\u3063\u3066\u898b\u3048\u65b9\u304c\u9055\u3044\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u30ed\u30b1\u30fc\u30eb\u3084\u5b9f\u88c5\u5dee\u3067\u5909\u308f\u308a\u307e\u3059\u3002\u91cd\u8981\u306a\u306e\u306f\u3001<strong>\u201c\u6587\u5b57\u5217\u201d\u3067\u306f\u306a\u304f\u201c\u5143\u306eOS\u30a8\u30e9\u30fc\uff08errno\/OS error code\uff09\u201d\u3092\u30ed\u30b0\u306b\u6b8b\u3059<\/strong>\u3053\u3068\u3067\u3059\u3002<\/p> <hr> <h3>C \/ C++\uff08POSIX\u30bd\u30b1\u30c3\u30c8\uff09<\/h3> <ul> <li>\u5931\u6557\u3057\u305fsyscall\uff08connect\/sendto\u7b49\uff09\u76f4\u5f8c\u306b <strong>errno<\/strong> \u3092\u5fc5\u305a\u63a1\u53d6\u3059\u308b\uff08\u5225\u306e\u547c\u3073\u51fa\u3057\u3067\u4e0a\u66f8\u304d\u3055\u308c\u308b\uff09\u3002<\/li> <li>\u30ed\u30b0\u306b\u306f\u300c\u5b9b\u5148IP\/\u30dd\u30fc\u30c8\u300d\u300c\u9001\u4fe1\u5143IF\/\u9001\u4fe1\u5143IP\uff08\u5206\u304b\u308b\u7bc4\u56f2\u3067\uff09\u300d\u300c\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u300d\u3092\u30bb\u30c3\u30c8\u3067\u6b8b\u3059\u3002<\/li> <li>\u975e\u540c\u671fI\/O\u3084\u5225\u30b9\u30ec\u30c3\u30c9\u3067\u30a8\u30e9\u30fc\u3092\u51e6\u7406\u3059\u308b\u5834\u5408\u3001errno\u306e\u6271\u3044\u3092\u8aa4\u308b\u3068\u8aa4\u8a3a\u306b\u3064\u306a\u304c\u308b\uff08\u30b9\u30ec\u30c3\u30c9\u30ed\u30fc\u30ab\u30eb\u3067\u3042\u308b\u70b9\u306f\u7406\u89e3\u3057\u3066\u3044\u3066\u3082\u3001\u30ed\u30b0\u96c6\u7d04\u3067\u6df7\u7dda\u3057\u304c\u3061\uff09\u3002<\/li> <\/ul> <h3>Go\uff08net\u30d1\u30c3\u30b1\u30fc\u30b8\uff09<\/h3> <ul> <li>net.Dial\u7b49\u306e\u30a8\u30e9\u30fc\u306f\u30e9\u30c3\u30d7\u3055\u308c\u308b\u305f\u3081\u3001\u30ed\u30b0\u3067\u306f <strong>errors.As<\/strong> \u3067 net.OpError \/ os.SyscallError \/ syscall.Errno \u3092\u8fbf\u308c\u308b\u5f62\u306b\u3057\u3066\u304a\u304f\u3002<\/li> <li>\u300cDNS\u89e3\u6c7a\u3067\u8a70\u307e\u3063\u3066\u3044\u308b\u306e\u304b\u300d\u300c\u63a5\u7d9a\u3067\u8a70\u307e\u3063\u3066\u3044\u308b\u306e\u304b\u300d\u3092\u5206\u3051\u308b\u305f\u3081\u3001\u89e3\u6c7a\u6bb5\u968e\u3068\u63a5\u7d9a\u6bb5\u968e\u306e\u30ed\u30b0\u3092\u5206\u96e2\u3059\u308b\u3002<\/li> <li>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306f\u5fc5\u305a\u660e\u793a\u3059\u308b\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u4efb\u305b\u306f\u74b0\u5883\u5dee\u304c\u51fa\u308b\uff09\u3002<\/li> <\/ul> <h3>Java\uff08JVM\u8a00\u8a9e\u542b\u3080\uff09<\/h3> <ul> <li>\u4f8b\u5916\uff08SocketException\u7b49\uff09\u306e <strong>\u30e1\u30c3\u30bb\u30fc\u30b8\u6587\u5b57\u5217\u306b\u4f9d\u5b58\u3057\u306a\u3044<\/strong>\u3002\u74b0\u5883\u3084JRE\u5dee\u3067\u8868\u73fe\u304c\u5909\u308f\u308b\u3002<\/li> <li>\u540d\u524d\u89e3\u6c7a\uff08InetAddress\uff09\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u6319\u52d5\u304c\u554f\u984c\u306e\u5207\u308a\u5206\u3051\u3092\u96e3\u3057\u304f\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001DNS\u8d77\u56e0\u304c\u7591\u308f\u3057\u3044\u5834\u5408\u306f\u300c\u3069\u306e\u6642\u70b9\u3067\u540d\u524d\u3092\u5f15\u3044\u305f\u304b\u300d\u3092\u30ed\u30b0\u306b\u6b8b\u3059\u3002<\/li> <li>\u63a5\u7d9a\u30fb\u8aad\u307f\u66f8\u304d\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u8a2d\u5b9a\u3092\u660e\u793a\u3057\u3001\u3069\u306e\u6bb5\u968e\u3067\u5931\u6557\u3057\u305f\u304b\uff08resolve\/connect\/read\uff09\u3092\u5206\u3051\u3066\u8a18\u9332\u3059\u308b\u3002<\/li> <\/ul> <h3>Python\uff08socket \/ requests \u306a\u3069\uff09<\/h3> <ul> <li>OSError\u7cfb\u4f8b\u5916\u3067\u306f\u3001<strong>e.errno<\/strong>\uff08\u307e\u305f\u306f e.args\uff09\u304b\u3089OS\u30a8\u30e9\u30fc\u756a\u53f7\u3092\u78ba\u5b9f\u306b\u63a1\u53d6\u3059\u308b\u3002<\/li> <li>requests\u7b49\u306e\u9ad8\u30ec\u30d9\u30eb\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u4f8b\u5916\u304c\u30e9\u30c3\u30d7\u3055\u308c\u308b\u305f\u3081\u3001\u6839\u306e\u4f8b\u5916\uff08__cause__ \/ __context__\uff09\u3092\u8fbf\u3063\u3066errno\u3092\u6b8b\u3059\u8a2d\u8a08\u304c\u5b89\u5168\u3002<\/li> <li>\u30ea\u30c8\u30e9\u30a4\u5b9f\u88c5\u306f\u7121\u9650\u5316\u3057\u3084\u3059\u3044\u306e\u3067\u3001\u56de\u6570\u4e0a\u9650\u30fb\u9593\u9694\u30fb\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\u7684\u306a\u6291\u3048\u8fbc\u307f\uff08\u30d6\u30ec\u30fc\u30ad\uff09\u3092\u5165\u308c\u308b\u3002<\/li> <\/ul> <h3>Node.js\uff08JavaScript \/ TypeScript\uff09<\/h3> <ul> <li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30e9\u30fc\u306f libuv \u7d4c\u7531\u306e\u30b3\u30fc\u30c9\uff08err.code \u306a\u3069\uff09\u3067\u898b\u3048\u308b\u3002\u30ed\u30b0\u306b\u306f <strong>code<\/strong> \u3068\u5b9b\u5148\u3001\u767a\u751f\u30d5\u30a7\u30fc\u30ba\uff08DNS\/\u63a5\u7d9a\/\u9001\u4fe1\uff09\u3092\u5fc5\u305a\u6b8b\u3059\u3002<\/li> <li>DNS\u307e\u308f\u308a\u306f\u975e\u540c\u671f\u3067\u898b\u3048\u65b9\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u300c\u89e3\u6c7a\u306b\u5931\u6557\u3057\u305f\u306e\u304b\u300d\u300c\u89e3\u6c7a\u5f8c\u306e\u63a5\u7d9a\u3067\u5931\u6557\u3057\u305f\u306e\u304b\u300d\u3092\u5206\u3051\u3066\u6271\u3046\u3002<\/li> <li>\u518d\u63a5\u7d9a\u30eb\u30fc\u30d7\u304c\u66b4\u8d70\u3059\u308b\u3068\u30ed\u30b0\u3068\u8ca0\u8377\u304c\u5897\u3048\u308b\u305f\u3081\u3001\u9593\u9694\u5236\u5fa1\u3068\u4e0a\u9650\uff08\u30b9\u30c8\u30c3\u30d1\u30fc\uff09\u3092\u5fc5\u9808\u306b\u3059\u308b\u3002<\/li> <\/ul> <h3>Ruby<\/h3> <ul> <li>Errno::ENONET \u306e\u3088\u3046\u306b\u4f8b\u5916\u30af\u30e9\u30b9\u3068\u3057\u3066\u898b\u3048\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u6587\u5b57\u5217\u3088\u308a <strong>\u4f8b\u5916\u30af\u30e9\u30b9<\/strong> \u3068\u5b9b\u5148\u60c5\u5831\u3092\u8a18\u9332\u3059\u308b\u3002<\/li> <li>\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u63e1\u308a\u3064\u3076\u3059\u30b1\u30fc\u30b9\u304c\u3042\u308b\u305f\u3081\u3001\u4f8b\u5916\u30c1\u30a7\u30fc\u30f3\u3084\u623b\u308a\u5024\u4ed5\u69d8\u3092\u628a\u63e1\u3057\u3001\u6839\u306e\u4f8b\u5916\u304c\u6b8b\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/li> <\/ul> <h3>Rust<\/h3> <ul> <li>std::io::Error \u306f ErrorKind \u3060\u3051\u3067\u306a\u304f\u3001<strong>raw_os_error()<\/strong> \u3092\u5fc5\u305a\u30ed\u30b0\u306b\u6b8b\u3059\uff08OS\u4f9d\u5b58\u306e\u5dee\u5206\u3092\u4fdd\u6301\u3067\u304d\u308b\uff09\u3002<\/li> <li>\u975e\u540c\u671f\u30e9\u30f3\u30bf\u30a4\u30e0\u5229\u7528\u6642\u306f\u3001\u3069\u306e\u30bf\u30b9\u30af\/\u3069\u306e\u5b9b\u5148\u3067\u5931\u6557\u3057\u305f\u304b\uff08\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\uff09\u3092\u30ed\u30b0\u306b\u542b\u3081\u308b\u3002<\/li> <\/ul> <h3>PHP<\/h3> <ul> <li>stream_socket_client \u7b49\u306f\u8b66\u544a\u3084false\u623b\u308a\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u3001\u30a8\u30e9\u30fc\u539f\u56e0\u304c\u30ed\u30b0\u306b\u6b8b\u3089\u306a\u3044\u5b9f\u88c5\u306b\u306a\u308a\u3084\u3059\u3044\u3002\u5fc5\u305a\u30a8\u30e9\u30fc\u756a\u53f7\u30fb\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d6\u5f97\u3057\u3001\u5b9b\u5148\u3068\u30bb\u30c3\u30c8\u3067\u4fdd\u5b58\u3059\u308b\u3002<\/li> <li>FPM\/\u30ef\u30fc\u30ab\u30fc\u74b0\u5883\u3067\u306f\u3001\u540c\u6642\u591a\u767a\u6642\u306b\u30ed\u30b0\u304c\u6df7\u7dda\u3057\u3084\u3059\u3044\u306e\u3067\u3001\u30ea\u30af\u30a8\u30b9\u30c8ID\u7b49\u306e\u76f8\u95a2\u30ad\u30fc\u3092\u5165\u308c\u308b\u3002<\/li> <\/ul> <h3>C#\uff08.NET\uff09<\/h3> <ul> <li>SocketException \u306e\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u3084SocketError\u3067\u5206\u985e\u3067\u304d\u308b\u304c\u3001OS\u5074\u306e\u30a8\u30e9\u30fc\u3068\u306e\u5dee\u5206\u304c\u51fa\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u30ed\u30b0\u306b\u306f\u30b3\u30fc\u30c9\u3068\u5b9b\u5148\u306b\u52a0\u3048\u3001\u5931\u6557\u30d5\u30a7\u30fc\u30ba\uff08\u540d\u524d\u89e3\u6c7a\/\u63a5\u7d9a\/\u9001\u4fe1\uff09\u3092\u6b8b\u3059\u3002<\/li> <li>\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u518d\u63a5\u7d9a\u306f\u30b9\u30d1\u30a4\u30af\u3092\u8d77\u3053\u3057\u3084\u3059\u3044\u306e\u3067\u3001\u6307\u6570\u30d0\u30c3\u30af\u30aa\u30d5\u7b49\u3067\u6e29\u5ea6\u3092\u4e0b\u3052\u308b\u3002<\/li> <\/ul> <hr> <h3>\u8a00\u8a9e\u3092\u554f\u308f\u305a\u5171\u901a\u306e\u300c\u4e8b\u6545\u3092\u6e1b\u3089\u3059\u300d\u5b9f\u88c5\u30dd\u30a4\u30f3\u30c8<\/h3> <ul> <li>\u30ed\u30b0\u306f\u300c\u30a8\u30e9\u30fc\u6587\u5b57\u5217\u300d\u3088\u308a<strong>OS\u30a8\u30e9\u30fc\u756a\u53f7<\/strong>\u3068<strong>\u5931\u6557\u30d5\u30a7\u30fc\u30ba<\/strong>\u3092\u6b8b\u3059\uff08resolve\/connect\/send\uff09\u3002<\/li> <li>\u5b9b\u5148\uff08FQDN\/IP\/Port\uff09\u3068\u3001\u53ef\u80fd\u306a\u3089\u9001\u4fe1\u5143\uff08src\/IF\uff09\u3082\u6b8b\u3059\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u969c\u5bb3\u6642\u306b ip route get \u306e\u7d50\u679c\u3092\u63a1\u53d6\u3059\u308b\u3002<\/li> <li>\u30ea\u30c8\u30e9\u30a4\u306f\u201c\u6b63\u7fa9\u201d\u3067\u306f\u306a\u3044\u3002\u4e0a\u9650\u30fb\u9593\u9694\u30fb\u505c\u6b62\u6761\u4ef6\u3092\u8a2d\u8a08\u3057\u3001\u66b4\u8d70\u3092\u9632\u3050\uff08\u88ab\u5bb3\u6700\u5c0f\u5316\uff09\u3002<\/li> <li>\u30b3\u30f3\u30c6\u30ca\/K8s\u3067\u306f\u300c\u30db\u30b9\u30c8\u3067\u901a\u308b\u300d\u306f\u6839\u62e0\u306b\u306a\u308a\u306b\u304f\u3044\u3002\u5fc5\u305a\u540c\u3058netns\u3067\u63a1\u53d6\u3059\u308b\u3002<\/li> <\/ul> <h3>\u4ed8\u9332\u307e\u3068\u3081\uff1a\u4e00\u822c\u8ad6\u3092\u300c\u3042\u306a\u305f\u306e\u73fe\u5834\u3067\u4f7f\u3048\u308b\u5f62\u300d\u306b\u843d\u3068\u3059<\/h3> <p>\u3053\u3053\u307e\u3067\u306e\u6ce8\u610f\u70b9\u306f\u4e00\u822c\u8ad6\u3067\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f\u300c\u3069\u306e\u8a00\u8a9e\u3067\u300d\u300c\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u300d\u300c\u3069\u306e\u5883\u754c\uff08VPN\/K8s\/\u9589\u57df\uff09\u3067\u300d\u904b\u7528\u3057\u3066\u3044\u308b\u304b\u3067\u3001\u6700\u9069\u306a\u30ed\u30b0\u8a2d\u8a08\u30fb\u5207\u308a\u5206\u3051\u8a2d\u8a08\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u6848\u4ef6\u30fb\u5951\u7d04\u30fb\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u306e\u5236\u7d04\u3092\u8e0f\u307e\u3048\u3066\u3001\u6700\u77ed\u3067\u201c\u53ce\u675f\u201d\u3055\u305b\u305f\u3044\u5834\u5408\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u3054\u691c\u8a0e\u304f\u3060\u3055\u3044\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\u3000\u96fb\u8a71\u756a\u53f7\uff1a0120-838-831<\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec10\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u306a\u308b\u307b\u3069\u3068\u601d\u3048\u308b\u5e30\u7d50\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u201c\u30b1\u30fc\u30d6\u30eb\u201d\u3067\u306f\u306a\u304f\u201c\u524d\u63d0\u6761\u4ef6\u306e\u96c6\u5408\u201d\u2014\u76e3\u8996\u30fbrunbook\u30fb\u81ea\u52d5\u5fa9\u65e7\u3067\u518d\u767a\u3092\u6f70\u3059<\/h2> <p>ENONET(64) \u3092\u8ffd\u3044\u304b\u3051\u3066\u3044\u308b\u3068\u3001\u6700\u5f8c\u306f\u3060\u3044\u305f\u3044\u540c\u3058\u7d50\u8ad6\u306b\u305f\u3069\u308a\u7740\u304d\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u300c\u7dda\u304c\u3064\u306a\u304c\u3063\u3066\u3044\u308b\u304b\u300d\u3067\u306f\u306a\u304f\u3001<strong>\u201c\u524d\u63d0\u6761\u4ef6\u304c\u63c3\u3063\u3066\u3044\u308b\u304b\u201d<\/strong>\u3067\u6210\u7acb\u3057\u3066\u3044\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p> <p>\u524d\u63d0\u6761\u4ef6\u3068\u306f\u3001\u3053\u3053\u307e\u3067\u6271\u3063\u3066\u304d\u305f\u3082\u306e\u2015\u2015\u540d\u524d\u7a7a\u9593\u3001IF\u72b6\u614b\u3001\u7d4c\u8def\u3001\u540d\u524d\u89e3\u6c7a\u2015\u2015\u305d\u3057\u3066\u3001\u305d\u308c\u3089\u3092\u52d5\u304b\u3059\u904b\u7528\uff08\u5909\u66f4\u30fb\u518d\u8d77\u52d5\u30fb\u81ea\u52d5\u5316\u30fb\u6a29\u9650\u5206\u754c\uff09\u3067\u3059\u3002<\/p> <hr> <h3>ENONET\u304c\u201c\u518d\u767a\u201d\u3057\u3084\u3059\u3044\u30c1\u30fc\u30e0\u306e\u5171\u901a\u70b9<\/h3> <p>\u3053\u308c\u306f\u500b\u793e\u6279\u5224\u3067\u306f\u306a\u304f\u3001\u69cb\u9020\u3068\u3057\u3066\u8d77\u304d\u304c\u3061\u306a\u8a71\u3067\u3059\u3002ENONET\u304c\u9577\u5f15\u304f\u73fe\u5834\u306f\u3001\u6b21\u306e\u6761\u4ef6\u3092\u62b1\u3048\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <ul> <li>\u30b7\u30b9\u30c6\u30e0\u304c\u30ec\u30ac\u30b7\u30fc\u3067\u3001\u6b62\u3081\u3089\u308c\u306a\u3044\uff08\u691c\u8a3c\u304c\u672c\u756a\u5bc4\u308a\u306b\u306a\u308a\u304c\u3061\uff09<\/li> <li>\u5883\u754c\u304c\u591a\u3044\uff08VPN\u3001\u62e0\u70b9\u9593\u3001\u9589\u57df\u3001\u30b3\u30f3\u30c6\u30ca\u3001K8s\u3001\u8907\u6570\u7d4c\u8def\uff09<\/li> <li>\u5909\u66f4\u304c\u591a\u3044\u306e\u306b\u3001\u5909\u66f4\u5c65\u6b74\u3068\u89b3\u6e2c\u70b9\u304c\u63c3\u3063\u3066\u3044\u306a\u3044\uff08\u300c\u3044\u3064\u4f55\u304c\u5909\u308f\u3063\u305f\u304b\u300d\u304c\u8ffd\u3048\u306a\u3044\uff09<\/li> <li>\u8cac\u4efb\u5206\u754c\u304c\u66d6\u6627\uff08\u30a2\u30d7\u30ea\uff0f\u30a4\u30f3\u30d5\u30e9\uff0f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff0f\u904b\u7528\u306e\u201c\u9593\u201d\u3067\u8a70\u307e\u308b\uff09<\/li> <\/ul> <p>\u3053\u3046\u3044\u3046\u6761\u4ef6\u306e\u3068\u304d\u3001\u969c\u5bb3\u306f\u201c\u6280\u8853\u201d\u3060\u3051\u3067\u306a\u304f\u201c\u8aac\u660e\u201d\u3067\u3082\u8a70\u307e\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u518d\u767a\u9632\u6b62\u306f\u300c\u6a5f\u80fd\u8ffd\u52a0\u300d\u3088\u308a<strong>\u5834\u3092\u6574\u3048\u308b<\/strong>\u65b9\u5411\u304c\u52b9\u304d\u307e\u3059\u3002<\/p> <hr> <h3>\u518d\u767a\u9632\u6b62\u306f\u300c\u89b3\u6e2c\u3067\u304d\u308b\u524d\u63d0\u6761\u4ef6\u300d\u3092\u4f5c\u308b\u3053\u3068<\/h3> <p>ENONET\u5bfe\u7b56\u3067\u5f37\u3044\u306e\u306f\u3001\u6b21\u306e3\u70b9\u3092\u201c\u6bce\u56de\u53d6\u308c\u308b\u5f62\u201d\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <table style=\"border-collapse:collapse; width:100%;\"> <tr> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u72d9\u3044<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u5177\u4f53\u7b56\uff08\u4f8b\uff09<\/th> <th style=\"background-color:#eeeeee; border:1px solid #999; padding:8px;\">\u5f97\u3089\u308c\u308b\u52b9\u679c<\/th> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u524d\u63d0\u6761\u4ef6\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u5316<\/td> <td style=\"border:1px solid #999; padding:8px;\">ip addr \/ ip route \/ ip rule \/ resolv.conf \/ ss \u306e\u5b9a\u671f\u63a1\u53d6\uff08\u5dee\u5206\u30ed\u30b0\u5316\uff09<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u300c\u3044\u3064\u5d29\u308c\u305f\u304b\u300d\u304c\u8ffd\u3048\u308b\uff08\u8aac\u660e\u304c\u901f\u3044\uff09<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">runbook\uff08\u5207\u308a\u5206\u3051\u624b\u9806\uff09\u306e\u56fa\u5b9a<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u672c\u8a18\u4e8b\u306esec04\u301csec09\u306e\u624b\u9806\u3092\u3001\u74b0\u5883\u56fa\u6709\u306e\u30b3\u30de\u30f3\u30c9\u306b\u843d\u3068\u3057\u3066\u6587\u66f8\u5316<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u5c5e\u4eba\u6027\u3092\u4e0b\u3052\u3001\u53ce\u675f\u304c\u901f\u304f\u306a\u308b<\/td> <\/tr> <tr> <td style=\"border:1px solid #999; padding:8px;\">\u5909\u66f4\u3068\u5fa9\u65e7\u306e\u201c\u5b89\u5168\u5f01\u201d<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u5909\u66f4\u524d\u5f8c\u306e\u72b6\u614b\u63a1\u53d6\u3001\u6bb5\u968e\u7684\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3001\u5f71\u97ff\u7bc4\u56f2\u306e\u9650\u5b9a<\/td> <td style=\"border:1px solid #999; padding:8px;\">\u88ab\u5bb3\u6700\u5c0f\u5316\u30fb\u8edf\u7740\u9678\u304c\u3057\u3084\u3059\u3044<\/td> <\/tr> <\/table> <hr> <h3>\u201c\u81ea\u52d5\u5fa9\u65e7\u201d\u3092\u5165\u308c\u308b\u306a\u3089\u3001\u5148\u306b\u300c\u8aa4\u5fa9\u65e7\u300d\u3092\u9632\u3050<\/h3> <p>\u81ea\u52d5\u5fa9\u65e7\uff08\u518d\u8d77\u52d5\u30fb\u518d\u63a5\u7d9a\u30fb\u518d\u89e3\u6c7a\uff09\u306f\u5f37\u529b\u3067\u3059\u304c\u3001\u4e71\u66b4\u306b\u5165\u308c\u308b\u3068\u30ed\u30b0\u304c\u57cb\u307e\u308a\u3001\u539f\u56e0\u304c\u96a0\u308c\u307e\u3059\u3002\u304a\u3059\u3059\u3081\u306f\u300c\u6761\u4ef6\u4ed8\u304d\u30fb\u6bb5\u968e\u7684\u300d\u3067\u3059\u3002<\/p> <ul> <li>\u307e\u305a\u306f<strong>\u89b3\u6e2c\uff08\u63a1\u53d6\uff09<\/strong>\u3092\u512a\u5148\u3057\u3001\u5931\u6557\u306e\u77ac\u9593\u3092\u6b8b\u3059<\/li> <li>\u30ea\u30c8\u30e9\u30a4\u306f\u56de\u6570\u30fb\u9593\u9694\u3092\u5236\u5fa1\u3057\u3001\u7121\u9650\u30eb\u30fc\u30d7\u306b\u3057\u306a\u3044\uff08\u30b9\u30c8\u30c3\u30d1\u30fc\u3092\u7f6e\u304f\uff09<\/li> <li>\u5fa9\u65e7\u30a2\u30af\u30b7\u30e7\u30f3\u306e\u524d\u5f8c\u3067\u3001\u72b6\u614b\uff08ip\/route\/DNS\/ss\uff09\u3092\u81ea\u52d5\u8a18\u9332\u3059\u308b<\/li> <\/ul> <p>\u3053\u308c\u3060\u3051\u3067\u3001\u969c\u5bb3\u5bfe\u5fdc\u306f\u300c\u6ce5\u6cbc\u300d\u304b\u3089\u300c\u624b\u9806\u5316\u300d\u306b\u5bc4\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p> <hr> <h3>\u4e00\u822c\u8ad6\u306e\u9650\u754c\uff1a\u3053\u3053\u304b\u3089\u5148\u306f\u201c\u3042\u306a\u305f\u306e\u69cb\u6210\u201d\u304c\u7b54\u3048\u3092\u6c7a\u3081\u308b<\/h3> <p>\u3053\u3053\u307e\u3067\u306e\u8a71\u306f\u3001ENONET\u3092\u6280\u8853\u7684\u306b\u6574\u7406\u3059\u308b\u305f\u3081\u306e\u4e00\u822c\u8ad6\u3067\u3059\u3002\u305f\u3060\u3001\u5b9f\u52d9\u3067\u306f\u6b21\u306e\u8981\u56e0\u3067\u7b54\u3048\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p> <ul> <li>\u9589\u57df\/VPN\/\u62e0\u70b9\u9593\u306a\u3069\u306e\u5883\u754c\u8a2d\u8a08\uff08\u3069\u306e\u7d4c\u8def\u3092\u6b63\u3068\u3059\u308b\u304b\uff09<\/li> <li>Kubernetes\/CNI\/NetworkPolicy \u306e\u5b9f\u88c5\u5dee\uff08\u3069\u3053\u304c\u72b6\u614b\u3092\u4f5c\u308b\u304b\uff09<\/li> <li>\u76e3\u67fb\u30fbSLA\u30fb\u5909\u66f4\u624b\u9806\uff08\u4f55\u3092\u201c\u3084\u3063\u3066\u3088\u3044\u201d\u304b\u3001\u3044\u3064\u3084\u308c\u308b\u304b\uff09<\/li> <li>\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u306e\u5236\u7d04\uff08\u6b62\u3081\u3089\u308c\u306a\u3044\u3001\u5909\u66f4\u3067\u304d\u306a\u3044\u3001\u89e6\u308c\u308b\u7bc4\u56f2\u304c\u9650\u3089\u308c\u308b\uff09<\/li> <\/ul> <p>\u3064\u307e\u308a\u3001\u6700\u5f8c\u306f\u300c\u3053\u306e\u69cb\u6210\u30fb\u3053\u306e\u5951\u7d04\u30fb\u3053\u306e\u904b\u7528\u300d\u3067\u3001\u3069\u306e\u9078\u629e\u304c\u5b89\u5168\u304b\u3092\u6c7a\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u307e\u3067\u542b\u3081\u3066\u201c\u53ce\u675f\u201d\u3055\u305b\u305f\u3044\u3068\u304d\u306f\u3001\u7b2c\u4e09\u8005\u306e\u8996\u70b9\u304c\u52b9\u304d\u307e\u3059\u3002<\/p> <h3>\u6b21\u306e\u4e00\u6b69\uff1a\u56f0\u3063\u305f\u3068\u304d\u306b\u3001\u76f8\u8ac7\u5148\u30921\u3064\u6301\u3063\u3066\u304a\u304f<\/h3> <p>ENONET\u306f\u3001\u539f\u56e0\u304c1\u3064\u3068\u306f\u9650\u3089\u305a\u3001\u5883\u754c\u304c\u5897\u3048\u308b\u307b\u3069\u8aac\u660e\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3082\u3057\u300c\u4eca\u306e\u72b6\u6cc1\u3092\u6574\u7406\u3057\u3066\u3001\u6700\u77ed\u3067\u53ce\u675f\u3055\u305b\u305f\u3044\u300d\u300c\u9867\u5ba2\u30fb\u793e\u5185\u3078\u306e\u8aac\u660e\u3082\u542b\u3081\u3066\u6574\u3048\u305f\u3044\u300d\u3068\u611f\u3058\u305f\u3089\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\u3000\u96fb\u8a71\u756a\u53f7\uff1a0120-838-831<\/p> <p>\u201c\u4f5c\u696d\u3092\u5897\u3084\u3059\u63d0\u6848\u201d\u3067\u306f\u306a\u304f\u3001\u201c\u5fc5\u8981\u306a\u89b3\u6e2c\u70b9\u3092\u63c3\u3048\u3066\u3001\u53ce\u675f\u3055\u305b\u308b\u305f\u3081\u306e\u9053\u7b4b\u201d\u304b\u3089\u4e00\u7dd2\u306b\u7d44\u307f\u7acb\u3066\u307e\u3059\u3002<\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec11\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u4ed8\u9332\uff1a\u73fe\u5728\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u5404\u7a2e\u3067\u306e\u6ce8\u610f\u70b9\u2014ENONET\u3092\u300c\u63e1\u308a\u3064\u3076\u3055\u305a\u300d\u300c\u8aa4\u8a3a\u3057\u306a\u3044\u300d\u305f\u3081\u306b<\/h2> <p>ENONET(64) \u306fLinux\u30ab\u30fc\u30cd\u30eb\u304c\u8fd4\u3059 errno \u306e\u4e00\u3064\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3067\u306f\u300c\u4f8b\u5916\u300d\u3084\u300c\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u300d\u3068\u3057\u3066\u898b\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u8a00\u8a9e\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u3088\u3063\u3066\u898b\u3048\u65b9\u304c\u9055\u3044\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u30ed\u30b1\u30fc\u30eb\u3084\u5b9f\u88c5\u5dee\u3067\u5909\u308f\u308a\u307e\u3059\u3002\u91cd\u8981\u306a\u306e\u306f\u3001<strong>\u201c\u6587\u5b57\u5217\u201d\u3067\u306f\u306a\u304f\u201c\u5143\u306eOS\u30a8\u30e9\u30fc\uff08errno\/OS error code\uff09\u201d\u3092\u30ed\u30b0\u306b\u6b8b\u3059<\/strong>\u3053\u3068\u3067\u3059\u3002<\/p> <hr> <h3>C \/ C++\uff08POSIX\u30bd\u30b1\u30c3\u30c8\uff09<\/h3> <ul> <li>\u5931\u6557\u3057\u305fsyscall\uff08connect\/sendto\u7b49\uff09\u76f4\u5f8c\u306b <strong>errno<\/strong> \u3092\u5fc5\u305a\u63a1\u53d6\u3059\u308b\uff08\u5225\u306e\u547c\u3073\u51fa\u3057\u3067\u4e0a\u66f8\u304d\u3055\u308c\u308b\uff09\u3002<\/li> <li>\u30ed\u30b0\u306b\u306f\u300c\u5b9b\u5148IP\/\u30dd\u30fc\u30c8\u300d\u300c\u9001\u4fe1\u5143IF\/\u9001\u4fe1\u5143IP\uff08\u5206\u304b\u308b\u7bc4\u56f2\u3067\uff09\u300d\u300c\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u300d\u3092\u30bb\u30c3\u30c8\u3067\u6b8b\u3059\u3002<\/li> <li>\u975e\u540c\u671fI\/O\u3084\u5225\u30b9\u30ec\u30c3\u30c9\u3067\u30a8\u30e9\u30fc\u3092\u51e6\u7406\u3059\u308b\u5834\u5408\u3001errno\u306e\u6271\u3044\u3092\u8aa4\u308b\u3068\u8aa4\u8a3a\u306b\u3064\u306a\u304c\u308b\uff08\u30b9\u30ec\u30c3\u30c9\u30ed\u30fc\u30ab\u30eb\u3067\u3042\u308b\u70b9\u306f\u7406\u89e3\u3057\u3066\u3044\u3066\u3082\u3001\u30ed\u30b0\u96c6\u7d04\u3067\u6df7\u7dda\u3057\u304c\u3061\uff09\u3002<\/li> <\/ul> <h3>Go\uff08net\u30d1\u30c3\u30b1\u30fc\u30b8\uff09<\/h3> <ul> <li>net.Dial\u7b49\u306e\u30a8\u30e9\u30fc\u306f\u30e9\u30c3\u30d7\u3055\u308c\u308b\u305f\u3081\u3001\u30ed\u30b0\u3067\u306f <strong>errors.As<\/strong> \u3067 net.OpError \/ os.SyscallError \/ syscall.Errno \u3092\u8fbf\u308c\u308b\u5f62\u306b\u3057\u3066\u304a\u304f\u3002<\/li> <li>\u300cDNS\u89e3\u6c7a\u3067\u8a70\u307e\u3063\u3066\u3044\u308b\u306e\u304b\u300d\u300c\u63a5\u7d9a\u3067\u8a70\u307e\u3063\u3066\u3044\u308b\u306e\u304b\u300d\u3092\u5206\u3051\u308b\u305f\u3081\u3001\u89e3\u6c7a\u6bb5\u968e\u3068\u63a5\u7d9a\u6bb5\u968e\u306e\u30ed\u30b0\u3092\u5206\u96e2\u3059\u308b\u3002<\/li> <li>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306f\u5fc5\u305a\u660e\u793a\u3059\u308b\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u4efb\u305b\u306f\u74b0\u5883\u5dee\u304c\u51fa\u308b\uff09\u3002<\/li> <\/ul> <h3>Java\uff08JVM\u8a00\u8a9e\u542b\u3080\uff09<\/h3> <ul> <li>\u4f8b\u5916\uff08SocketException\u7b49\uff09\u306e <strong>\u30e1\u30c3\u30bb\u30fc\u30b8\u6587\u5b57\u5217\u306b\u4f9d\u5b58\u3057\u306a\u3044<\/strong>\u3002\u74b0\u5883\u3084JRE\u5dee\u3067\u8868\u73fe\u304c\u5909\u308f\u308b\u3002<\/li> <li>\u540d\u524d\u89e3\u6c7a\uff08InetAddress\uff09\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u6319\u52d5\u304c\u554f\u984c\u306e\u5207\u308a\u5206\u3051\u3092\u96e3\u3057\u304f\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001DNS\u8d77\u56e0\u304c\u7591\u308f\u3057\u3044\u5834\u5408\u306f\u300c\u3069\u306e\u6642\u70b9\u3067\u540d\u524d\u3092\u5f15\u3044\u305f\u304b\u300d\u3092\u30ed\u30b0\u306b\u6b8b\u3059\u3002<\/li> <li>\u63a5\u7d9a\u30fb\u8aad\u307f\u66f8\u304d\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u8a2d\u5b9a\u3092\u660e\u793a\u3057\u3001\u3069\u306e\u6bb5\u968e\u3067\u5931\u6557\u3057\u305f\u304b\uff08resolve\/connect\/read\uff09\u3092\u5206\u3051\u3066\u8a18\u9332\u3059\u308b\u3002<\/li> <\/ul> <h3>Python\uff08socket \/ requests \u306a\u3069\uff09<\/h3> <ul> <li>OSError\u7cfb\u4f8b\u5916\u3067\u306f\u3001<strong>e.errno<\/strong>\uff08\u307e\u305f\u306f e.args\uff09\u304b\u3089OS\u30a8\u30e9\u30fc\u756a\u53f7\u3092\u78ba\u5b9f\u306b\u63a1\u53d6\u3059\u308b\u3002<\/li> <li>requests\u7b49\u306e\u9ad8\u30ec\u30d9\u30eb\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u4f8b\u5916\u304c\u30e9\u30c3\u30d7\u3055\u308c\u308b\u305f\u3081\u3001\u6839\u306e\u4f8b\u5916\uff08__cause__ \/ __context__\uff09\u3092\u8fbf\u3063\u3066errno\u3092\u6b8b\u3059\u8a2d\u8a08\u304c\u5b89\u5168\u3002<\/li> <li>\u30ea\u30c8\u30e9\u30a4\u5b9f\u88c5\u306f\u7121\u9650\u5316\u3057\u3084\u3059\u3044\u306e\u3067\u3001\u56de\u6570\u4e0a\u9650\u30fb\u9593\u9694\u30fb\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\u7684\u306a\u6291\u3048\u8fbc\u307f\uff08\u30d6\u30ec\u30fc\u30ad\uff09\u3092\u5165\u308c\u308b\u3002<\/li> <\/ul> <h3>Node.js\uff08JavaScript \/ TypeScript\uff09<\/h3> <ul> <li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30e9\u30fc\u306f libuv \u7d4c\u7531\u306e\u30b3\u30fc\u30c9\uff08err.code \u306a\u3069\uff09\u3067\u898b\u3048\u308b\u3002\u30ed\u30b0\u306b\u306f <strong>code<\/strong> \u3068\u5b9b\u5148\u3001\u767a\u751f\u30d5\u30a7\u30fc\u30ba\uff08DNS\/\u63a5\u7d9a\/\u9001\u4fe1\uff09\u3092\u5fc5\u305a\u6b8b\u3059\u3002<\/li> <li>DNS\u307e\u308f\u308a\u306f\u975e\u540c\u671f\u3067\u898b\u3048\u65b9\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u300c\u89e3\u6c7a\u306b\u5931\u6557\u3057\u305f\u306e\u304b\u300d\u300c\u89e3\u6c7a\u5f8c\u306e\u63a5\u7d9a\u3067\u5931\u6557\u3057\u305f\u306e\u304b\u300d\u3092\u5206\u3051\u3066\u6271\u3046\u3002<\/li> <li>\u518d\u63a5\u7d9a\u30eb\u30fc\u30d7\u304c\u66b4\u8d70\u3059\u308b\u3068\u30ed\u30b0\u3068\u8ca0\u8377\u304c\u5897\u3048\u308b\u305f\u3081\u3001\u9593\u9694\u5236\u5fa1\u3068\u4e0a\u9650\uff08\u30b9\u30c8\u30c3\u30d1\u30fc\uff09\u3092\u5fc5\u9808\u306b\u3059\u308b\u3002<\/li> <\/ul> <h3>Ruby<\/h3> <ul> <li>Errno::ENONET \u306e\u3088\u3046\u306b\u4f8b\u5916\u30af\u30e9\u30b9\u3068\u3057\u3066\u898b\u3048\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u6587\u5b57\u5217\u3088\u308a <strong>\u4f8b\u5916\u30af\u30e9\u30b9<\/strong> \u3068\u5b9b\u5148\u60c5\u5831\u3092\u8a18\u9332\u3059\u308b\u3002<\/li> <li>\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u63e1\u308a\u3064\u3076\u3059\u30b1\u30fc\u30b9\u304c\u3042\u308b\u305f\u3081\u3001\u4f8b\u5916\u30c1\u30a7\u30fc\u30f3\u3084\u623b\u308a\u5024\u4ed5\u69d8\u3092\u628a\u63e1\u3057\u3001\u6839\u306e\u4f8b\u5916\u304c\u6b8b\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/li> <\/ul> <h3>Rust<\/h3> <ul> <li>std::io::Error \u306f ErrorKind \u3060\u3051\u3067\u306a\u304f\u3001<strong>raw_os_error()<\/strong> \u3092\u5fc5\u305a\u30ed\u30b0\u306b\u6b8b\u3059\uff08OS\u4f9d\u5b58\u306e\u5dee\u5206\u3092\u4fdd\u6301\u3067\u304d\u308b\uff09\u3002<\/li> <li>\u975e\u540c\u671f\u30e9\u30f3\u30bf\u30a4\u30e0\u5229\u7528\u6642\u306f\u3001\u3069\u306e\u30bf\u30b9\u30af\/\u3069\u306e\u5b9b\u5148\u3067\u5931\u6557\u3057\u305f\u304b\uff08\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\uff09\u3092\u30ed\u30b0\u306b\u542b\u3081\u308b\u3002<\/li> <\/ul> <h3>PHP<\/h3> <ul> <li>stream_socket_client \u7b49\u306f\u8b66\u544a\u3084false\u623b\u308a\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u3001\u30a8\u30e9\u30fc\u539f\u56e0\u304c\u30ed\u30b0\u306b\u6b8b\u3089\u306a\u3044\u5b9f\u88c5\u306b\u306a\u308a\u3084\u3059\u3044\u3002\u5fc5\u305a\u30a8\u30e9\u30fc\u756a\u53f7\u30fb\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d6\u5f97\u3057\u3001\u5b9b\u5148\u3068\u30bb\u30c3\u30c8\u3067\u4fdd\u5b58\u3059\u308b\u3002<\/li> <li>FPM\/\u30ef\u30fc\u30ab\u30fc\u74b0\u5883\u3067\u306f\u3001\u540c\u6642\u591a\u767a\u6642\u306b\u30ed\u30b0\u304c\u6df7\u7dda\u3057\u3084\u3059\u3044\u306e\u3067\u3001\u30ea\u30af\u30a8\u30b9\u30c8ID\u7b49\u306e\u76f8\u95a2\u30ad\u30fc\u3092\u5165\u308c\u308b\u3002<\/li> <\/ul> <h3>C#\uff08.NET\uff09<\/h3> <ul> <li>SocketException \u306e\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u3084SocketError\u3067\u5206\u985e\u3067\u304d\u308b\u304c\u3001OS\u5074\u306e\u30a8\u30e9\u30fc\u3068\u306e\u5dee\u5206\u304c\u51fa\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u30ed\u30b0\u306b\u306f\u30b3\u30fc\u30c9\u3068\u5b9b\u5148\u306b\u52a0\u3048\u3001\u5931\u6557\u30d5\u30a7\u30fc\u30ba\uff08\u540d\u524d\u89e3\u6c7a\/\u63a5\u7d9a\/\u9001\u4fe1\uff09\u3092\u6b8b\u3059\u3002<\/li> <li>\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u518d\u63a5\u7d9a\u306f\u30b9\u30d1\u30a4\u30af\u3092\u8d77\u3053\u3057\u3084\u3059\u3044\u306e\u3067\u3001\u6307\u6570\u30d0\u30c3\u30af\u30aa\u30d5\u7b49\u3067\u6e29\u5ea6\u3092\u4e0b\u3052\u308b\u3002<\/li> <\/ul> <hr> <h3>\u8a00\u8a9e\u3092\u554f\u308f\u305a\u5171\u901a\u306e\u300c\u4e8b\u6545\u3092\u6e1b\u3089\u3059\u300d\u5b9f\u88c5\u30dd\u30a4\u30f3\u30c8<\/h3> <ul> <li>\u30ed\u30b0\u306f\u300c\u30a8\u30e9\u30fc\u6587\u5b57\u5217\u300d\u3088\u308a<strong>OS\u30a8\u30e9\u30fc\u756a\u53f7<\/strong>\u3068<strong>\u5931\u6557\u30d5\u30a7\u30fc\u30ba<\/strong>\u3092\u6b8b\u3059\uff08resolve\/connect\/send\uff09\u3002<\/li> <li>\u5b9b\u5148\uff08FQDN\/IP\/Port\uff09\u3068\u3001\u53ef\u80fd\u306a\u3089\u9001\u4fe1\u5143\uff08src\/IF\uff09\u3082\u6b8b\u3059\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u969c\u5bb3\u6642\u306b ip route get \u306e\u7d50\u679c\u3092\u63a1\u53d6\u3059\u308b\u3002<\/li> <li>\u30ea\u30c8\u30e9\u30a4\u306f\u201c\u6b63\u7fa9\u201d\u3067\u306f\u306a\u3044\u3002\u4e0a\u9650\u30fb\u9593\u9694\u30fb\u505c\u6b62\u6761\u4ef6\u3092\u8a2d\u8a08\u3057\u3001\u66b4\u8d70\u3092\u9632\u3050\uff08\u88ab\u5bb3\u6700\u5c0f\u5316\uff09\u3002<\/li> <li>\u30b3\u30f3\u30c6\u30ca\/K8s\u3067\u306f\u300c\u30db\u30b9\u30c8\u3067\u901a\u308b\u300d\u306f\u6839\u62e0\u306b\u306a\u308a\u306b\u304f\u3044\u3002\u5fc5\u305a\u540c\u3058netns\u3067\u63a1\u53d6\u3059\u308b\u3002<\/li> <\/ul> <h3>\u4ed8\u9332\u307e\u3068\u3081\uff1a\u4e00\u822c\u8ad6\u3092\u300c\u3042\u306a\u305f\u306e\u73fe\u5834\u3067\u4f7f\u3048\u308b\u5f62\u300d\u306b\u843d\u3068\u3059<\/h3> <p>\u3053\u3053\u307e\u3067\u306e\u6ce8\u610f\u70b9\u306f\u4e00\u822c\u8ad6\u3067\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f\u300c\u3069\u306e\u8a00\u8a9e\u3067\u300d\u300c\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u300d\u300c\u3069\u306e\u5883\u754c\uff08VPN\/K8s\/\u9589\u57df\uff09\u3067\u300d\u904b\u7528\u3057\u3066\u3044\u308b\u304b\u3067\u3001\u6700\u9069\u306a\u30ed\u30b0\u8a2d\u8a08\u30fb\u5207\u308a\u5206\u3051\u8a2d\u8a08\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u6848\u4ef6\u30fb\u5951\u7d04\u30fb\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u306e\u5236\u7d04\u3092\u8e0f\u307e\u3048\u3066\u3001\u6700\u77ed\u3067\u201c\u53ce\u675f\u201d\u3055\u305b\u305f\u3044\u5834\u5408\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u3054\u691c\u8a0e\u304f\u3060\u3055\u3044\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a>\u3000\u96fb\u8a71\u756a\u53f7\uff1a0120-838-831<\/p> \r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-556abf41 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"556abf41\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-35d22c02\" data-id=\"35d22c02\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6bae19f4 elementor-widget elementor-widget-text-editor\" data-id=\"6bae19f4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<style>h1.dai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}h2.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin: 0 auto 50px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin: 0 auto 50px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}<\/style><h2 class='fukudai'>\u306f\u3058\u3081\u306b<\/h2><br><p>     Linux\u74b0\u5883\u306b\u304a\u3044\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u95a2\u9023\u306e\u30c8\u30e9\u30d6\u30eb\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u904b\u7528\u3084\u696d\u52d9\u306e\u5186\u6ed1\u5316\u306b\u3068\u3063\u3066\u907f\u3051\u3066\u901a\u308c\u306a\u3044\u8ab2\u984c\u306e\u4e00\u3064\u3067\u3059\u3002\u7279\u306b\u3001\u300cMachine is not on the network\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3067\u304d\u306a\u3044\u72b6\u614b\u3092\u793a\u3057\u3001\u539f\u56e0\u306e\u7279\u5b9a\u3068\u9069\u5207\u306a\u5bfe\u51e6\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u3053\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u80cc\u666f\u3084\u539f\u56e0\u306e\u57fa\u672c\u7684\u306a\u7406\u89e3\u304b\u3089\u59cb\u3081\u3001\u5177\u4f53\u7684\u306a\u4e8b\u4f8b\u3084\u5bfe\u5fdc\u7b56\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u3084IT\u62c5\u5f53\u8005\u304c\u5b89\u5fc3\u3057\u3066\u5bfe\u51e6\u3067\u304d\u308b\u3088\u3046\u3001\u73fe\u72b6\u306e\u30c8\u30e9\u30d6\u30eb\u89e3\u6c7a\u306e\u305f\u3081\u306b\u5f79\u7acb\u3064\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u3092\u7dad\u6301\u3057\u3001\u554f\u984c\u89e3\u6c7a\u306b\u5411\u3051\u3066\u306e\u4e00\u52a9\u3068\u306a\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3001\u4fe1\u983c\u3067\u304d\u308b\u5bfe\u51e6\u6cd5\u3092\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p><br><br><p>\u300cMachine is not on the network\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306b\u8a8d\u8b58\u3055\u308c\u3066\u3044\u306a\u3044\u72b6\u614b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u8aa4\u308a\u3084\u7269\u7406\u7684\u306a\u63a5\u7d9a\u4e0d\u826f\u3001\u307e\u305f\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u95a2\u3059\u308b\u554f\u984c\u304c\u539f\u56e0\u3067\u767a\u751f\u3057\u307e\u3059\u3002\u57fa\u672c\u7684\u306b\u3001\u3053\u306e\u30a8\u30e9\u30fc\u306f\u30b7\u30b9\u30c6\u30e0\u304cIP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3067\u304d\u3066\u3044\u306a\u3044\u3001\u307e\u305f\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6b63\u3057\u304f\u63a5\u7d9a\u3055\u308c\u3066\u3044\u306a\u3044\u72b6\u614b\u3092\u6307\u3057\u307e\u3059\u3002    \u539f\u56e0\u306e\u4e00\u3064\u3068\u3057\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b1\u30fc\u30d6\u30eb\u306e\u629c\u3051\u3084\u65ad\u7dda\u3001\u30b9\u30a4\u30c3\u30c1\u3084\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u30df\u30b9\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u7269\u7406\u7684\u306a\u554f\u984c\u3067\u3042\u308a\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u63a5\u7d9a\u72b6\u614b\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u7b2c\u4e00\u6b69\u3067\u3059\u3002\u307e\u305f\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a2d\u5b9a\u30df\u30b9\u3084DHCP\uff08\u52d5\u7684\u30db\u30b9\u30c8\u69cb\u6210\u30d7\u30ed\u30c8\u30b3\u30eb\uff09\u306e\u8a2d\u5b9a\u4e0d\u5099\u3082\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002DHCP\u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u308a\u3001\u624b\u52d5\u8a2d\u5b9a\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u306b\u8aa4\u308a\u304c\u3042\u3063\u305f\u5834\u5408\u3082\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u53c2\u52a0\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002  \u3055\u3089\u306b\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30c9\u30e9\u30a4\u30d0\u306e\u554f\u984c\u3084\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u7af6\u5408\u3082\u539f\u56e0\u3068\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5074\u306e\u8a2d\u5b9a\u3084\u30c9\u30e9\u30a4\u30d0\u306e\u4e0d\u5177\u5408\u306b\u8d77\u56e0\u3057\u3001\u9069\u5207\u306a\u30c9\u30e9\u30a4\u30d0\u306e\u66f4\u65b0\u3084\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u304c\u5fc5\u8981\u3067\u3059\u3002  \u3053\u306e\u30a8\u30e9\u30fc\u306e\u6839\u672c\u539f\u56e0\u3092\u6b63\u78ba\u306b\u7279\u5b9a\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u7269\u7406\u7684\u306a\u63a5\u7d9a\u72b6\u614b\u306e\u78ba\u8a8d\u3001\u305d\u306e\u5f8c\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u72b6\u614b\u3084\u30c9\u30e9\u30a4\u30d0\u306e\u78ba\u8a8d\u3092\u884c\u3046\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u3084IT\u62c5\u5f53\u8005\u306f\u3001\u3053\u308c\u3089\u306e\u70b9\u3092\u9806\u306b\u691c\u8a3c\u3057\u3001\u554f\u984c\u306e\u5207\u308a\u5206\u3051\u3092\u9032\u3081\u308b\u3053\u3068\u304c\u3001\u8fc5\u901f\u306a\u89e3\u6c7a\u3078\u306e\u7b2c\u4e00\u6b69\u3068\u306a\u308a\u307e\u3059\u3002    \u203b\u5f53\u793e\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br><p>\u3088\u308a\u8a73\u7d30\u306a\u4e8b\u4f8b\u3084\u5177\u4f53\u7684\u306a\u5bfe\u5fdc\u65b9\u6cd5\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u5b9f\u969b\u306e\u30b7\u30b9\u30c6\u30e0\u904b\u7528\u306b\u304a\u3044\u3066\u3001\u300cMachine is not on the network\u300d\u30a8\u30e9\u30fc\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u72b6\u6cc1\u3067\u767a\u751f\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u3042\u308b\u4f01\u696d\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u5b9a\u671f\u7684\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3067\u304d\u306a\u304f\u306a\u308b\u30b1\u30fc\u30b9\u3067\u306f\u3001\u307e\u305a\u7269\u7406\u7684\u306a\u63a5\u7d9a\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u629c\u3051\u3084\u65ad\u7dda\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u6545\u969c\u306e\u6709\u7121\u3092\u8abf\u67fb\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u6700\u3082\u57fa\u672c\u7684\u304b\u3064\u91cd\u8981\u306a\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002  \u6b21\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u304c\u5fc5\u8981\u3067\u3059\u3002\u7279\u306b\u3001\u9759\u7684IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u8a2d\u5b9a\u5185\u5bb9\u306b\u8aa4\u308a\u304c\u306a\u3044\u304b\u3001\u307e\u305f\u306f\u91cd\u8907\u3057\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u304c\u5b58\u5728\u3057\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002DHCP\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001DHCP\u30b5\u30fc\u30d0\u30fc\u306e\u52d5\u4f5c\u72b6\u6cc1\u3084IP\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u7bc4\u56f2\u3092\u78ba\u8a8d\u3057\u3001\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u308b\u304b\u3092\u8abf\u67fb\u3057\u307e\u3059\u3002DHCP\u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u306a\u3044\u3068\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u81ea\u52d5\u7684\u306bIP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3067\u304d\u305a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u53c2\u52a0\u3067\u304d\u307e\u305b\u3093\u3002  \u307e\u305f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u72b6\u614b\u3082\u91cd\u8981\u3067\u3059\u3002\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3001\u30c9\u30e9\u30a4\u30d0\u306e\u66f4\u65b0\u3084\u518d\u8d77\u52d5\u3092\u8a66\u307f\u308b\u3053\u3068\u3082\u52b9\u679c\u7684\u3067\u3059\u3002\u7279\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c9\u30e9\u30a4\u30d0\u304c\u53e4\u304f\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3084\u4e0d\u5177\u5408\u3092\u8d77\u3053\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6700\u65b0\u306e\u30c9\u30e9\u30a4\u30d0\u306b\u66f4\u65b0\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u306b\u7e4b\u304c\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002  \u3053\u308c\u3089\u306e\u5bfe\u5fdc\u7b56\u3092\u6bb5\u968e\u7684\u306b\u5b9f\u65bd\u3057\u306a\u304c\u3089\u3001\u554f\u984c\u306e\u6839\u672c\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u3084IT\u62c5\u5f53\u8005\u306f\u3001\u554f\u984c\u306e\u5207\u308a\u5206\u3051\u3092\u4e01\u5be7\u306b\u884c\u3044\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u5c02\u9580\u7684\u306a\u652f\u63f4\u3092\u53d7\u3051\u308b\u3053\u3068\u3082\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u9069\u5207\u306a\u5bfe\u5fdc\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u7a3c\u50cd\u7387\u3092\u7dad\u6301\u3067\u304d\u308b\u3088\u3046\u52aa\u3081\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002  \u203b\u5f53\u793e\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br><p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u72b6\u614b\u78ba\u8a8d\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u300cMachine is not on the network\u300d\u30a8\u30e9\u30fc\u306e\u89e3\u6c7a\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u307e\u305a\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u7528\u3044\u3066\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002Linux\u74b0\u5883\u3067\u306f\u3001\u300cip a\u300d\u3084\u300cifconfig\u300d\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6709\u52b9\u30fb\u7121\u52b9\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u72b6\u6cc1\u3092\u628a\u63e1\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u6b63\u3057\u304f\u8a8d\u8b58\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u8a2d\u5b9a\u304c\u9069\u5207\u304b\u3092\u5224\u65ad\u3057\u307e\u3059\u3002  \u6b21\u306b\u3001\u30c9\u30e9\u30a4\u30d0\u306e\u72b6\u614b\u3084\u30d0\u30fc\u30b8\u30e7\u30f3\u3082\u78ba\u8a8d\u304c\u5fc5\u8981\u3067\u3059\u3002\u53e4\u3044\u30c9\u30e9\u30a4\u30d0\u3084\u4e0d\u5177\u5408\u306e\u3042\u308b\u30c9\u30e9\u30a4\u30d0\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6b63\u5e38\u52d5\u4f5c\u3092\u59a8\u3052\u308b\u539f\u56e0\u3068\u306a\u308b\u305f\u3081\u3001\u6700\u65b0\u306e\u72b6\u614b\u306b\u66f4\u65b0\u3057\u307e\u3059\u3002\u30c9\u30e9\u30a4\u30d0\u306e\u66f4\u65b0\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u6027\u5411\u4e0a\u3084\u554f\u984c\u89e3\u6c7a\u306b\u5bc4\u4e0e\u3057\u307e\u3059\u3002\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u518d\u8d77\u52d5\u3084\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u7121\u52b9\u5316\u30fb\u6709\u52b9\u5316\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u4e00\u6642\u7684\u306a\u4e0d\u5177\u5408\u3092\u89e3\u6d88\u3067\u304d\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002  \u307e\u305f\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u6545\u969c\u3084\u63a5\u7d9a\u4e0d\u826f\u3082\u898b\u9003\u305b\u307e\u305b\u3093\u3002\u30b1\u30fc\u30d6\u30eb\u306e\u629c\u3051\u3084\u65ad\u7dda\u3001\u30b9\u30a4\u30c3\u30c1\u3084\u30eb\u30fc\u30bf\u30fc\u306e\u30dd\u30fc\u30c8\u306e\u6545\u969c\u304c\u539f\u56e0\u3067\u3042\u308b\u5834\u5408\u3082\u591a\u3044\u305f\u3081\u3001\u7269\u7406\u7684\u306a\u63a5\u7d9a\u72b6\u614b\u3092\u4e01\u5be7\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u5225\u306e\u30b1\u30fc\u30d6\u30eb\u3084\u30dd\u30fc\u30c8\u306b\u5dee\u3057\u66ff\u3048\u308b\u3053\u3068\u3082\u691c\u8a0e\u3057\u307e\u3059\u3002  \u3053\u308c\u3089\u306e\u78ba\u8a8d\u3068\u5bfe\u7b56\u3092\u6bb5\u968e\u7684\u306b\u884c\u3046\u3053\u3068\u3067\u3001\u554f\u984c\u306e\u6839\u672c\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u3084IT\u62c5\u5f53\u8005\u306f\u3001\u5404\u30b9\u30c6\u30c3\u30d7\u3092\u4e01\u5be7\u306b\u9032\u3081\u308b\u3053\u3068\u304c\u3001\u8fc5\u901f\u306a\u89e3\u6c7a\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u904b\u7528\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u554f\u984c\u304c\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306b\u306f\u3001\u5c02\u9580\u7684\u306a\u652f\u63f4\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u70b9\u691c\u3082\u8996\u91ce\u306b\u5165\u308c\u308b\u3053\u3068\u304c\u671b\u307e\u3057\u3044\u3067\u3059\u3002    \u203b\u5f53\u793e\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br><p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3068\u9069\u5207\u306a\u5bfe\u51e6\u306f\u3001\u300cMachine is not on the network\u300d\u30a8\u30e9\u30fc\u306e\u6839\u672c\u89e3\u6c7a\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u307e\u305a\u3001\u9759\u7684IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u3001\u305d\u306e\u8a2d\u5b9a\u5185\u5bb9\u3092\u4e01\u5be7\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002IP\u30a2\u30c9\u30ec\u30b9\u306e\u91cd\u8907\u3084\u8aa4\u3063\u305f\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u8a2d\u5b9a\u306e\u8aa4\u308a\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u6b63\u5e38\u306a\u63a5\u7d9a\u3092\u59a8\u3052\u308b\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u898b\u76f4\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u6b63\u3057\u3044\u5024\u306b\u4fee\u6b63\u3057\u307e\u3059\u3002  \u6b21\u306b\u3001DHCP\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001DHCP\u30b5\u30fc\u30d0\u30fc\u306e\u52d5\u4f5c\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002DHCP\u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u308b\u304b\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u7bc4\u56f2\u306b\u554f\u984c\u304c\u306a\u3044\u304b\u3092\u8abf\u67fb\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u3084\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3057\u3001\u9069\u5207\u306a\u7bc4\u56f2\u5185\u3067IP\u30a2\u30c9\u30ec\u30b9\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u3082\u3057DHCP\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u984c\u304c\u3042\u308c\u3070\u3001\u518d\u8d77\u52d5\u3084\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3092\u884c\u3044\u307e\u3059\u3002  \u3055\u3089\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u7af6\u5408\u3082\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u8907\u6570\u306e\u30b7\u30b9\u30c6\u30e0\u3084\u30c7\u30d0\u30a4\u30b9\u304c\u540c\u3058IP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6df7\u4e71\u304c\u751f\u3058\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002ARP\u30b3\u30de\u30f3\u30c9\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30ad\u30e3\u30f3\u30c4\u30fc\u30eb\u3092\u7528\u3044\u3066\u3001\u91cd\u8907\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u3084MAC\u30a2\u30c9\u30ec\u30b9\u306e\u7af6\u5408\u3092\u691c\u51fa\u3057\u307e\u3059\u3002\u554f\u984c\u304c\u898b\u3064\u304b\u3063\u305f\u5834\u5408\u306f\u3001\u8a72\u5f53\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u306e\u8a2d\u5b9a\u3092\u4fee\u6b63\u3057\u307e\u3059\u3002  \u3053\u308c\u3089\u306e\u8a2d\u5b9a\u898b\u76f4\u3057\u3068\u8abf\u6574\u3092\u884c\u3046\u969b\u306b\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u672c\u7684\u306a\u69cb\u6210\u3084\u904b\u7528\u30eb\u30fc\u30eb\u3092\u7406\u89e3\u3057\u3001\u614e\u91cd\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u306e\u5c02\u9580\u77e5\u8b58\u3092\u6301\u3064\u652f\u63f4\u3092\u53d7\u3051\u308b\u3053\u3068\u3082\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6b63\u78ba\u306a\u8a2d\u5b9a\u3068\u9069\u5207\u306a\u7ba1\u7406\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u7a3c\u50cd\u7387\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002  \u203b\u5f53\u793e\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br><p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3068\u8abf\u6574\u306f\u3001\u300cMachine is not on the network\u300d\u30a8\u30e9\u30fc\u306e\u6839\u672c\u7684\u306a\u89e3\u6c7a\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u307e\u305a\u3001\u9759\u7684IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u5185\u5bb9\u3092\u614e\u91cd\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002IP\u30a2\u30c9\u30ec\u30b9\u306e\u91cd\u8907\u3084\u8aa4\u3063\u305f\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u8a2d\u5b9a\u30df\u30b9\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u6b63\u3057\u304f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3067\u304d\u306a\u304f\u306a\u308b\u539f\u56e0\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u6b63\u78ba\u306b\u898b\u76f4\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u5024\u306b\u4fee\u6b63\u3057\u307e\u3059\u3002    \u6b21\u306b\u3001DHCP\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001DHCP\u30b5\u30fc\u30d0\u30fc\u306e\u52d5\u4f5c\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u5e38\u306b\u7a3c\u50cd\u3057\u3066\u3044\u308b\u304b\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u7bc4\u56f2\u306b\u554f\u984c\u304c\u306a\u3044\u304b\u3092\u8abf\u67fb\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u3084\u8a2d\u5b9a\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u304c\u9069\u5207\u306b\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3082\u3057\u554f\u984c\u304c\u898b\u3064\u304b\u308c\u3070\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u518d\u8d77\u52d5\u3084\u8a2d\u5b9a\u306e\u8abf\u6574\u3092\u884c\u3046\u3053\u3068\u3067\u89e3\u6c7a\u7b56\u3068\u306a\u308a\u307e\u3059\u3002    \u3055\u3089\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u7af6\u5408\u3082\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u8907\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u540c\u3058IP\u30a2\u30c9\u30ec\u30b9\u3084MAC\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6df7\u4e71\u3084\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002ARP\u30b3\u30de\u30f3\u30c9\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30ad\u30e3\u30f3\u30c4\u30fc\u30eb\u3092\u6d3b\u7528\u3057\u3001\u91cd\u8907\u3084\u7af6\u5408\u3092\u691c\u51fa\u3057\u307e\u3059\u3002\u554f\u984c\u3092\u7279\u5b9a\u3057\u305f\u5834\u5408\u306f\u3001\u5bfe\u8c61\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u8a2d\u5b9a\u3092\u4fee\u6b63\u3057\u3001\u30a2\u30c9\u30ec\u30b9\u306e\u91cd\u8907\u3092\u89e3\u6d88\u3057\u307e\u3059\u3002    \u3053\u308c\u3089\u306e\u8abf\u6574\u4f5c\u696d\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u672c\u7684\u306a\u7406\u89e3\u3068\u614e\u91cd\u306a\u5bfe\u5fdc\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u306e\u5c02\u9580\u77e5\u8b58\u3092\u6301\u3064\u652f\u63f4\u3092\u53d7\u3051\u308b\u3053\u3068\u3082\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u6b63\u78ba\u306a\u8a2d\u5b9a\u3068\u9069\u5207\u306a\u7ba1\u7406\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u3092\u9ad8\u3081\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u7d99\u7d9a\u7684\u306a\u7a3c\u50cd\u3092\u652f\u63f4\u3057\u307e\u3059\u3002    \u203b\u5f53\u793e\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br><p>\u300cMachine is not on the network\u300d\u30a8\u30e9\u30fc\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3084\u7269\u7406\u7684\u306a\u63a5\u7d9a\u72b6\u614b\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u6545\u969c\u306a\u3069\u3001\u591a\u5c90\u306b\u308f\u305f\u308b\u8981\u56e0\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u307e\u3059\u3002\u6839\u672c\u539f\u56e0\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3057\u3001\u6bb5\u968e\u7684\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u307e\u305a\u3001\u7269\u7406\u7684\u306a\u63a5\u7d9a\u3084\u30b1\u30fc\u30d6\u30eb\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3001\u305d\u306e\u5f8c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3084\u30c9\u30e9\u30a4\u30d0\u306e\u72b6\u614b\u3092\u898b\u76f4\u3059\u3053\u3068\u3067\u3001\u591a\u304f\u306e\u30b1\u30fc\u30b9\u3067\u554f\u984c\u306e\u89e3\u6c7a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u7279\u306b\u3001\u9759\u7684IP\u8a2d\u5b9a\u306e\u8aa4\u308a\u3084DHCP\u30b5\u30fc\u30d0\u30fc\u306e\u52d5\u4f5c\u72b6\u6cc1\u306e\u78ba\u8a8d\u306f\u3001\u8fc5\u901f\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002    \u307e\u305f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u72b6\u614b\u78ba\u8a8d\u3084\u8a2d\u5b9a\u306e\u8abf\u6574\u3092\u4e01\u5be7\u306b\u884c\u3046\u3053\u3068\u3082\u3001\u554f\u984c\u89e3\u6c7a\u306e\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u4f5c\u696d\u306f\u5c02\u9580\u77e5\u8b58\u304c\u5fc5\u8981\u306a\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u9069\u5207\u306a\u624b\u9806\u3092\u8e0f\u3080\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u6027\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4fe1\u983c\u6027\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u5c02\u9580\u306e\u652f\u63f4\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u691c\u67fb\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u3082\u3001\u9577\u671f\u7684\u306a\u89e3\u6c7a\u7b56\u3068\u306a\u308a\u307e\u3059\u3002    \u672c\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u305f\u5bfe\u51e6\u6cd5\u306f\u3001\u73fe\u5834\u3067\u306e\u5b9f\u8df5\u306b\u5f79\u7acb\u3064\u57fa\u672c\u7684\u304b\u3064\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u65b9\u6cd5\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u3084IT\u62c5\u5f53\u8005\u306f\u3001\u65e5\u3005\u306e\u904b\u7528\u306e\u4e2d\u3067\u3053\u308c\u3089\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u610f\u8b58\u3057\u3001\u9069\u5207\u306a\u5bfe\u5fdc\u3092\u5fc3\u639b\u3051\u308b\u3053\u3068\u304c\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u904b\u7528\u3068\u30c8\u30e9\u30d6\u30eb\u306e\u672a\u7136\u9632\u6b62\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002    \u203b\u5f53\u793e\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br><p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d6\u30eb\u306e\u89e3\u6c7a\u306b\u306f\u3001\u9069\u5207\u306a\u77e5\u8b58\u3068\u51b7\u9759\u306a\u5bfe\u5fdc\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3082\u3057\u3054\u81ea\u8eab\u3067\u306e\u5bfe\u51e6\u304c\u96e3\u3057\u3044\u5834\u5408\u3084\u3001\u6839\u672c\u7684\u306a\u539f\u56e0\u7279\u5b9a\u306b\u6642\u9593\u3092\u8981\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u5c02\u9580\u696d\u8005\u3084\u30b5\u30dd\u30fc\u30c8\u7a93\u53e3\u306b\u76f8\u8ac7\u3059\u308b\u3053\u3068\u3082\u9078\u629e\u80a2\u306e\u4e00\u3064\u3067\u3059\u3002\u5c02\u9580\u5bb6\u306e\u652f\u63f4\u3092\u53d7\u3051\u308b\u3053\u3068\u3067\u3001\u8fc5\u901f\u304b\u3064\u78ba\u5b9f\u306b\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u904b\u7528\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002\u4f55\u3088\u308a\u3082\u3001\u5b9a\u671f\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u70b9\u691c\u3068\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u30c8\u30e9\u30d6\u30eb\u306e\u672a\u7136\u9632\u6b62\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u304a\u56f0\u308a\u306e\u969b\u306f\u3001\u307e\u305a\u306f\u51b7\u9759\u306b\u72b6\u6cc1\u3092\u6574\u7406\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30b5\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p><br><br><p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30c8\u30e9\u30d6\u30eb\u5bfe\u51e6\u306b\u304a\u3044\u3066\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305a\u3001\u7269\u7406\u7684\u306a\u63a5\u7d9a\u78ba\u8a8d\u306f\u6700\u512a\u5148\u4e8b\u9805\u3067\u3059\u3002\u30b1\u30fc\u30d6\u30eb\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u6545\u969c\u3084\u7de9\u307f\u3092\u898b\u843d\u3068\u3059\u3068\u3001\u6839\u672c\u539f\u56e0\u306e\u7279\u5b9a\u3084\u89e3\u6c7a\u304c\u9045\u308c\u308b\u305f\u3081\u3067\u3059\u3002\u6b21\u306b\u3001\u8a2d\u5b9a\u5909\u66f4\u3084\u30c9\u30e9\u30a4\u30d0\u66f4\u65b0\u3092\u884c\u3046\u969b\u306b\u306f\u3001\u6b63\u78ba\u306a\u60c5\u5831\u306b\u57fa\u3065\u3044\u3066\u614e\u91cd\u306b\u64cd\u4f5c\u3092\u884c\u3046\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u8aa4\u3063\u305f\u8a2d\u5b9a\u3084\u4e0d\u9069\u5207\u306a\u30c9\u30e9\u30a4\u30d0\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306f\u3001\u9006\u306b\u554f\u984c\u3092\u60aa\u5316\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002  \u307e\u305f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8a2d\u5b9a\u3084\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u4f5c\u696d\u3067\u306f\u3001\u8907\u6570\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u8e0f\u3080\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u9759\u7684IP\u3068DHCP\u306e\u4e21\u65b9\u306e\u8a2d\u5b9a\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3001\u7af6\u5408\u3084\u8aa4\u8a2d\u5b9a\u3092\u6392\u9664\u3057\u307e\u3059\u3002\u8a2d\u5b9a\u306e\u5909\u66f4\u306f\u3001\u5fc5\u305a\u8a18\u9332\u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u3063\u305f\u4e0a\u3067\u884c\u3046\u3053\u3068\u3082\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4e07\u4e00\u554f\u984c\u304c\u62e1\u5927\u3057\u305f\u5834\u5408\u3067\u3082\u3001\u5143\u306e\u72b6\u614b\u306b\u623b\u3059\u3053\u3068\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002  \u3055\u3089\u306b\u3001\u554f\u984c\u89e3\u6c7a\u306e\u904e\u7a0b\u3067\u306f\u3001\u7126\u3089\u305a\u6bb5\u968e\u7684\u306b\u9032\u3081\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u77ed\u7d61\u7684\u306a\u5bfe\u5fdc\u3084\u81ea\u5df1\u6d41\u306e\u64cd\u4f5c\u306f\u3001\u3088\u308a\u8907\u96d1\u306a\u30c8\u30e9\u30d6\u30eb\u3092\u62db\u304f\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u5c02\u9580\u5bb6\u3084\u30b5\u30dd\u30fc\u30c8\u7a93\u53e3\u306b\u76f8\u8ac7\u3057\u3001\u9069\u5207\u306a\u30a2\u30c9\u30d0\u30a4\u30b9\u3092\u53d7\u3051\u308b\u3053\u3068\u3082\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6700\u5f8c\u306b\u3001\u30c8\u30e9\u30d6\u30eb\u3092\u672a\u7136\u306b\u9632\u3050\u305f\u3081\u306b\u3001\u5b9a\u671f\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u70b9\u691c\u3084\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3092\u884c\u3044\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u6027\u3092\u7dad\u6301\u3059\u308b\u52aa\u529b\u3082\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002    \u203b\u5f53\u793e\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br><h2 class='fukudai'>\u88dc\u8db3\u60c5\u5831<\/h2><br><p>\u203b\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u306f\uff08\u4ee5\u4e0b\u3001\u5f53\u793e\uff09\u306f\u3001\u7d30\u5fc3\u306e\u6ce8\u610f\u3092\u6255\u3063\u3066\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u60c5\u5831\u3092\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u60c5\u5831\u306e\u6b63\u78ba\u6027\u304a\u3088\u3073\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306f\u4e88\u544a\u306a\u3057\u306b\u3001\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5f53\u793e\u304a\u3088\u3073\u305d\u306e\u95a2\u9023\u4f1a\u793e\u306f\u3001\u304a\u5ba2\u3055\u307e\u304c\u5f53\u793e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u3082\u3057\u304f\u306f\u5185\u5bb9\u3092\u3054\u5229\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u76f4\u63a5\u30fb\u9593\u63a5\u7684\u306b\u751f\u3058\u305f\u640d\u5931\u306b\u95a2\u3057\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p><br><br>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u3082\u304f\u3058 \u7b2c1\u7ae0\uff1a\u300c\u30cd\u30c3\u30c8\u306f\u751f\u304d\u3066\u308b\u306e\u306bENONET\uff1f\u300d\u2014\u591c\u9593\u969c\u5bb3\u3067\u4e00\u756a\u3064\u3089\u3044\u201c\u8aac\u660e\u3067\u304d\u306a\u3044\u201d\u77ac\u9593 \u7b2c2\u7ae0\uff1aENONET(64) \u306f\u3069\u306esyscall\u3067\u8fd4\u308b\u304b\u2014socket\/connect\/sendto\u306e\u623b\u308a\u5024\u3092\u8d77\u70b9\u306b\u3059\u308b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"","site-content-layout":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[62],"tags":[56,50,43],"class_list":["post-42506","post","type-post","status-publish","format-standard","hentry","category-1-","tag-56","tag-50","tag-43"],"_links":{"self":[{"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=\/wp\/v2\/posts\/42506","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=42506"}],"version-history":[{"count":4,"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=\/wp\/v2\/posts\/42506\/revisions"}],"predecessor-version":[{"id":61024,"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=\/wp\/v2\/posts\/42506\/revisions\/61024"}],"wp:attachment":[{"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=42506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=42506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jouhou.main.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=42506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}