{"id":1907,"date":"2017-12-04T00:00:03","date_gmt":"2017-12-03T15:00:03","guid":{"rendered":"https:\/\/blog.ymyzk.com\/?p=1907"},"modified":"2017-12-07T21:48:51","modified_gmt":"2017-12-07T12:48:51","slug":"how-to-find-network-connectivity-problems","status":"publish","type":"post","link":"https:\/\/blog.ymyzk.com\/2017\/12\/how-to-find-network-connectivity-problems\/","title":{"rendered":"\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u300d\u3068\u304d\u306e\u539f\u56e0\u306e\u898b\u3064\u3051\u65b9"},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306f <a href=\"https:\/\/advent.camph.net\" rel=\"nofollow noopener\" target=\"_blank\">CAMPHOR- Advent Calendar 2017<\/a> 4\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\uff0e<\/p>\n<p>\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u300d\u3068\u3044\u3046\u8a71\u3092\u3057\u3070\u3057\u3070\u8033\u306b\u3057\u307e\u3059\uff0e\u3053\u306e\u3088\u3046\u306a\u3068\u304d\u306b\u3068\u308a\u3042\u3048\u305a\u8a2d\u5b9a\u3092\u3044\u3058\u3063\u3066\u307f\u305f\u308a\uff0c\u6a5f\u5668\u306e\u96fb\u6e90\u3092\u5165\u308c\u76f4\u3057\u3066\u307f\u305f\u308a\u3057\u3066\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3066\uff0c\u6839\u672c\u7684\u306a\u539f\u56e0\u304c\u3088\u304f\u5206\u304b\u3089\u306a\u3044\u307e\u307e\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u3068\u601d\u3044\u307e\u3059\uff0e\u307e\u305f\uff0c\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u306e\u3067\u306a\u3093\u3068\u304b\u3057\u3066\u304f\u308c\u300d\u3068\u8a00\u3063\u305f\u3053\u3068\u3092\u3088\u304f\u4eba\u306b\u8a00\u308f\u308c\u3066\u5bfe\u5fdc\u3059\u308b\u306e\u3067\u3059\u304c\uff0c\u5b9f\u969b\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u60aa\u3044\u3053\u3068\u3082\u3042\u308c\u3070\uff0c\u30b5\u30fc\u30d3\u30b9\u304c\u843d\u3061\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u3063\u305f\u308a\uff0c\u30af\u30ec\u30fc\u30e0\u3092\u8a00\u3063\u3066\u3044\u308b\u4eba\u304c\u8a2d\u5b9a\u3092\u9593\u9055\u3063\u3066\u3044\u305f\u308a\u306a\u3069\u539f\u56e0\u306f\u69d8\u3005\u3067\u3059\uff0e<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u77e5\u8b58\u3092\u4f7f\u3063\u3066\uff0c\u6a5f\u5668\u3092\u518d\u8d77\u52d5\u3057\u3066\u3057\u307e\u3046\u524d\u306b\u3082\u3046\u5c11\u3057\u307e\u3068\u3082\u306b\u539f\u56e0\u3092\u7a76\u660e\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\uff0e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u652f\u3048\u308b\u305d\u308c\u305e\u308c\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u306f\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u304c\uff0c\u5177\u4f53\u7684\u306b\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u539f\u56e0\u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u8cc7\u6599\u306f\u3042\u307e\u308a\u306a\u3044\u3088\u3046\u306b\u601d\u3046\u306e\u3067\uff0c\u3053\u306e\u8a18\u4e8b\u304c\u7686\u3055\u3093\u306e\u304a\u5f79\u306b\u7acb\u3066\u308c\u3070\u5e78\u3044\u3067\u3059\uff0e<\/p>\n<p><!--more--><\/p>\n<h2>\u6ce8\u610f<\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u306f\u4e00\u822c\u7684\u306a\u5bb6\u5ead\u3084\u7814\u7a76\u5ba4\u7a0b\u5ea6\u306e\u5c0f\u898f\u6a21\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (\u7aef\u672b\u6570\u304c\u6570\u5341\u53f0\u304f\u3089\u3044\u306e\u3082\u306e) \u3092\u5bfe\u8c61\u306b\u3057\u3066\u3044\u307e\u3059\uff0e\u307e\u305f\uff0c\u57fa\u672c\u7684\u306b\u904e\u53bb\u306b\u81ea\u5206\u304c\u898b\u305f\u3053\u3068\u304c\u3042\u308b\u4e8b\u4f8b\u3084\uff0c\u5b9f\u969b\u306b\u5931\u6557\u3057\u305f\u4e8b\u4f8b\u3092\u4e2d\u5fc3\u306b\u66f8\u3044\u3066\u304a\u308a\uff0c\u5185\u5bb9\u304c\u504f\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff0e\u8a18\u4e8b\u4e2d\u306e\u30b3\u30de\u30f3\u30c9\u306f\u4e3b\u306b Linux \u3084 macOS \u3092\u4f7f\u3063\u3066\u5b9f\u884c\u3057\u305f\u7d50\u679c\u3092\u66f8\u3044\u3066\u3044\u307e\u3059\uff0e<\/p>\n<h2>\u306f\u3058\u3081\u306b<\/h2>\n<h3>\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u300d\u3063\u3066?<\/h3>\n<p>\u4e00\u53e3\u306b\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u300d\u3068\u3044\u3063\u3066\u3082\u305d\u308c\u304c\u610f\u5473\u3059\u308b\u3068\u3053\u308d\u306f\u4eba\u306b\u3088\u3063\u3066\u69d8\u3005\u3067\u3059\uff0e\u4f8b\u3048\u3070\u300c\u30d6\u30e9\u30a6\u30b6\u3067 Gmail \u3092\u958b\u3051\u306a\u3044\u300d\u3068\u304b\u300cYouTube \u306e\u52d5\u753b\u306e\u8aad\u307f\u8fbc\u307f\u304c\u9045\u3044\u300d\u3068\u304b\u8272\u3005\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\uff0e\u3053\u306e\u8a18\u4e8b\u3067\u306f\u57fa\u672c\u7684\u306b\u300c\u30d6\u30e9\u30a6\u30b6\u3067 Gmail \u3092\u958b\u3051\u306a\u3044 (\u30a8\u30e9\u30fc\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b)\u300d\u3068\u3044\u3063\u305f\uff0c\u901a\u4fe1\u304c\u51fa\u6765\u306a\u304f\u306a\u3063\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3092\u4e3b\u306b\u53d6\u308a\u4e0a\u3052\u307e\u3059\uff0e<\/p>\n<p><a href=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/7dd4c3f74f006b34bb1d70d7adebd54e.png\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-1922\" src=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/7dd4c3f74f006b34bb1d70d7adebd54e-1024x612.png\" alt=\"\" width=\"840\" height=\"502\" srcset=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/7dd4c3f74f006b34bb1d70d7adebd54e-1024x612.png 1024w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/7dd4c3f74f006b34bb1d70d7adebd54e-300x179.png 300w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/7dd4c3f74f006b34bb1d70d7adebd54e-768x459.png 768w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/7dd4c3f74f006b34bb1d70d7adebd54e-1200x717.png 1200w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/7dd4c3f74f006b34bb1d70d7adebd54e.png 1626w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/p>\n<p>\u307e\u305f\uff0c\u30b5\u30fc\u30d3\u30b9\u306b\u969c\u5bb3\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u300d\u3068\u8a00\u308f\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff0e\u3053\u306e\u8a18\u4e8b\u3067\u306f\u30b5\u30fc\u30d3\u30b9\u306b\u969c\u5bb3\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u542b\u3081\u3066\u8003\u3048\u307e\u3059\uff0e<\/p>\n<h3>\u8abf\u5b50\u304c\u60aa\u3044\u539f\u56e0\u306f\u3044\u308d\u3044\u308d<\/h3>\n<p>\u30d6\u30e9\u30a6\u30b6\u3067 Web \u30da\u30fc\u30b8\u3092\u95b2\u89a7\u3059\u308b\u3060\u3051\u3067\u3082\u69d8\u3005\u306a\u6a5f\u5668\u3084\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u95a2\u308f\u3063\u3066\u3044\u307e\u3059\uff0eWeb \u30d6\u30e9\u30a6\u30b6\u3084\u30b5\u30fc\u30d0\u30fc\u304c\u304d\u3061\u3093\u3068\u52d5\u4f5c\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u306f\u3082\u3061\u308d\u3093\u306e\u3053\u3068\uff0cHTTP(S)\u30fbTCP\u30fbIP \u7b49\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u3063\u3066\u304d\u3061\u3093\u3068\u901a\u4fe1\u3067\u304d\u308b\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\uff0e\u3053\u308c\u3089\u306e\u305f\u304f\u3055\u3093\u306e\u8981\u7d20\u306e\u5185\uff0c\u4e00\u3064\u306b\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3060\u3051\u3067 Web \u30da\u30fc\u30b8\u3092\u95b2\u89a7\u3067\u304d\u306a\u3044\u72b6\u614b\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\uff0e<\/p>\n<p>TCP\/IP \u3067\u901a\u4fe1\u3059\u308b\u969b\u306e\u6982\u5ff5\u56f3\u306f\u304a\u304a\u3088\u305d\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n<p><a href=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002.png\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-1932\" src=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-1024x576.png\" alt=\"\" width=\"840\" height=\"473\" srcset=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-1024x576.png 1024w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-300x169.png 300w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-768x432.png 768w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-1200x675.png 1200w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002.png 1920w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/p>\n<p>\u4f8b\u3048\u3070\uff0c\u30d6\u30e9\u30a6\u30b6\u3067 Web \u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3059\u308b\u5834\u5408\uff0c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u3067\u306f HTTP \u3084 TLS (SSL)\uff0c\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u3067\u306f TCP\uff0c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64\u3067\u306f IP\uff0c\u30ea\u30f3\u30af\u5c64\u3067\u306f\u63a5\u7d9a\u65b9\u6cd5\u306b\u3088\u3063\u3066 Ethernet \u3084 Wi-Fi \u304c\u5229\u7528\u3055\u308c\u307e\u3059\uff0e\u3082\u3061\u308d\u3093 HTTP \u3067\u306e\u901a\u4fe1\u3092\u59cb\u3081\u308b\u307e\u3067\u306b DNS \u3092\u4f7f\u3063\u3066\u540d\u524d\u3092\u89e3\u6c7a\u3057\u305f\u308a\uff0cDHCP \u3067 IP \u30a2\u30c9\u30ec\u30b9\u7b49\u3092\u8a2d\u5b9a\u3057\u305f\u308a\u3068\u3044\u3063\u305f\u3053\u3068\u3082\u884c\u308f\u308c\u307e\u3059\uff0e<\/p>\n<h3>\u539f\u56e0\u3092\u63a2\u3057\u59cb\u3081\u308b\u524d\u306b<\/h3>\n<p>\u3053\u308c\u304b\u3089\u5177\u4f53\u7684\u306a\u539f\u56e0\u306e\u63a2\u3057\u65b9\u306b\u3064\u3044\u3066\u66f8\u3044\u3066\u3044\u304f\u306e\u3067\u3059\u304c\uff0c\u539f\u56e0\u3092\u7a76\u660e\u3059\u308b\u524d\u306b\u6c17\u3092\u4ed8\u3051\u3066\u304a\u304f\u3079\u304d\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff0e\u307e\u305a\uff0c\u300c\u3053\u306e\u6a5f\u5668\u306f\u58ca\u308c\u3066\u3044\u306a\u3044\u306f\u305a\u3060\u300d\u3084\u300c\u3053\u306e\u8a2d\u5b9a\u306f\u9593\u9055\u3063\u3066\u3044\u306a\u3044\u306f\u305a\u300d\u3068\u3044\u3063\u305f\u601d\u3044\u8fbc\u307f\u306f\u907f\u3051\u307e\u3057\u3087\u3046\uff0e\u51b7\u9759\u306b\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u691c\u8a3c\u3059\u308b\u306a\u3069\u3057\u3066\uff0c\u539f\u56e0\u3092\u7d5e\u308a\u8fbc\u3093\u3067\u3044\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\uff0e\u307e\u305f\uff0c\u843d\u3061\u7740\u3044\u3066\u4f5c\u696d\u3059\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\uff0e\u969c\u5bb3\u3092\u76f4\u305d\u3046\u3068\u3057\u3066\u8a2d\u5b9a\u3092\u66f4\u306b\u9593\u9055\u3063\u305f\u308a\u3059\u308b\u3068\u4fee\u6b63\u304c\u3088\u308a\u5927\u5909\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n<h2>\u76f4\u8fd1\u306e\u5909\u66f4\u3092\u7591\u3063\u3066\u307f\u308b<\/h2>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u3068\u304d\u306b\u307e\u305a\u3059\u3079\u304d\u3053\u3068\u306f\uff0c\u76f4\u8fd1\u306e\u5909\u66f4\u3092\u7591\u3063\u3066\u307f\u308b\u3053\u3068\u3067\u3059\uff0e\u81ea\u5206\u306e\u7d4c\u9a13\u3067\u306f\uff0c\u4f55\u3082\u5909\u66f4\u3092\u3057\u3066\u3044\u306a\u3044\u3068\u304d\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u4e0d\u8abf\u306b\u306a\u308b\u3053\u3068\u306f\u5c11\u306a\u304f\uff0c\u4f55\u304b\u3057\u3089\u306e\u884c\u52d5\u304c\u539f\u56e0\u3067\u4e0d\u8abf\u306b\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3088\u3046\u306b\u601d\u3044\u307e\u3059\uff0e<\/p>\n<p>\u5177\u4f53\u7684\u306a\u4f8b\u3092\u4ee5\u4e0b\u306b\u3044\u304f\u3064\u304b\u6319\u3052\u3066\u307f\u307e\u3059\uff0e<\/p>\n<h3>\u914d\u7dda\u3092\u5909\u66f4\u3057\u305f<\/h3>\n<p>\u914d\u7dda\u3092\u9593\u9055\u3063\u305f\uff0c\u30b1\u30fc\u30d6\u30eb\u304c\u65ad\u7dda\u3057\u3066\u3044\u305f\uff0c\u30b1\u30fc\u30d6\u30eb\u304c\u304d\u3061\u3093\u3068\u523a\u3055\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u306a\u3069\u306e\u539f\u56e0\u304c\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u914d\u7dda\u3092\u3082\u3046\u4e00\u5ea6\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n<p>\u307e\u305f\uff0c\u5c0f\u898f\u6a21\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f UTP \u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u3063\u305f Ethernet \u304c\u307b\u3068\u3093\u3069\u3060\u3068\u601d\u3044\u307e\u3059\uff0e\u30b1\u30fc\u30d6\u30eb\u304c\u63a5\u7d9a\u3055\u308c\u3066\u4e21\u7aef\u306e\u6a5f\u5668\u306e\u96fb\u6e90\u304c\u5165\u3063\u3066\u3044\u308b\u5834\u5408\u300cLINK\u300d\u3068\u66f8\u304b\u308c\u305f LED 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\u30b5\u30fc\u30d0\u30fc\u30921\u3064\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306b\u7acb\u3066\u3066\u3057\u307e\u3046\u3068\u3044\u3063\u305f\u3053\u3068\u304c\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u306f\u4e00\u65e6\u65b0\u3057\u3044\u6a5f\u5668\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u53d6\u308a\u5916\u3057\u3066\uff0c\u51b7\u9759\u306b\u8a2d\u5b9a\u3092\u898b\u76f4\u3059\u306e\u304c\u826f\u3044\u3068\u601d\u3044\u307e\u3059\uff0e<\/p>\n<h3>\u6a5f\u5668\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u305f\u30fb\u6a5f\u5668\u3092\u518d\u8d77\u52d5\u3057\u305f<\/h3>\n<p>\u6a5f\u5668\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u305f\u5834\u5408\u306f\uff0c\u305d\u306e\u8a2d\u5b9a\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u307e\u305f\u6a5f\u5668\u3092\u518d\u8d77\u52d5\u3057\u3066\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\uff0c\u518d\u8d77\u52d5\u524d\u306b\u8a2d\u5b9a\u3092\u304d\u3061\u3093\u3068\u4fdd\u5b58\u3057\u3066\u304a\u3089\u305a\uff0c\u518d\u8d77\u52d5\u3057\u305f\u969b\u306b\u8a2d\u5b9a\u304c\u5931\u308f\u308c\u3066\u3044\u308b\u306a\u3069\u306e\u53ef\u80fd\u6027\u3082\u8003\u3048\u3089\u308c\u307e\u3059\uff0e(\u4f8b: 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(\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u56de\u7dda\u3084\u4f01\u696d\u30fb\u56e3\u4f53\u306a\u3069\u306e\u7d44\u7e54\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306a\u3069)<\/li>\n<li>\u30b5\u30fc\u30d3\u30b9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30b5\u30fc\u30d0\u30fc<\/li>\n<\/ul>\n<p>\u81ea\u5206\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u7aef\u672b\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u306f\u81ea\u5206\u3067\u76f4\u3059\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u304c\uff0c\u305d\u308c\u3088\u308a\u5148\u306e\u554f\u984c\u306f\u81ea\u5206\u3067\u306f\u76f4\u3059\u3053\u3068\u304c\u51fa\u6765\u307e\u305b\u3093\uff0e\u3053\u306e\u70b9\u304b\u3089\u3082\uff0c\u81ea\u5206\u306e\u7ba1\u7406\u3057\u3066\u3044\u308b\u90e8\u5206\u306b\u554f\u984c\u304c\u3042\u308b\u306e\u304b\uff0c\u305d\u306e\u5916\u5074\u306b\u554f\u984c\u304c\u3042\u308b\u306e\u304b\u3092\u5207\u308a\u5206\u3051\u308b\u306e\u306f\u91cd\u8981\u3067\u3059\uff0e<\/p>\n<h3>\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u554f\u984c<\/h3>\n<p>\u81ea\u5b85\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3082\u643a\u5e2f\u96fb\u8a71\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3082\u3042\u308b\u30b5\u30fc\u30d3\u30b9\u304c\u5229\u7528\u3067\u304d\u306a\u3044\u3088\u3046\u306a\u5834\u5408\uff0c\u3053\u308c\u306f\u30b5\u30fc\u30d3\u30b9\u5074\u306b\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\uff0e\u307e\u305f\uff0c\u4ed6\u306e\u30b5\u30fc\u30d3\u30b9\u306f\u5229\u7528\u3067\u304d\u308b\u304c\uff0c\u7279\u5b9a\u306e\u30b5\u30fc\u30d3\u30b9\u3060\u3051\u304c\u5229\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u3082\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u554f\u984c\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u8003\u3048\u3089\u308c\u307e\u3059\uff0e<\/p>\n<p>\u30e1\u30b8\u30e3\u30fc\u306a\u30b5\u30fc\u30d3\u30b9\u306f\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u898b\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u30da\u30fc\u30b8\u3084 Twitter \u30a2\u30ab\u30a6\u30f3\u30c8\u306a\u3069\u3092\u7528\u610f\u3057\u3066\u3044\u308b\u306e\u3067\uff0c\u305d\u308c\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u306e\u304c\u826f\u3044\u3068\u601d\u3044\u307e\u3059\uff0e<a href=\"https:\/\/status.github.com\" rel=\"nofollow noopener\" target=\"_blank\">GitHub \u306e\u4f8b<\/a>:<\/p>\n<p><a href=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/a779aa94c10fffe080fa4a47321c227f.png\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-1933\" src=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/a779aa94c10fffe080fa4a47321c227f-1024x578.png\" alt=\"\" width=\"840\" height=\"474\" srcset=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/a779aa94c10fffe080fa4a47321c227f-1024x578.png 1024w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/a779aa94c10fffe080fa4a47321c227f-300x169.png 300w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/a779aa94c10fffe080fa4a47321c227f-768x434.png 768w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/a779aa94c10fffe080fa4a47321c227f-1200x678.png 1200w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/a779aa94c10fffe080fa4a47321c227f.png 1360w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/p>\n<p>\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u306b\u307e\u3060\u60c5\u5831\u304c\u8f09\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u3067\u3082\uff0cTwitter \u306a\u3069\u3067\u691c\u7d22\u3059\u308b\u3068\u540c\u3058\u73fe\u8c61\u306b\u906d\u9047\u3057\u3066\u3044\u308b\u4ed6\u306e\u4eba\u3092\u898b\u3064\u3051\u3089\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\uff0e<\/p>\n<p>\u6700\u8fd1\u306f AWS\u30fbGCP\u30fbAzure \u306e\u3088\u3046\u306a\u30af\u30e9\u30a6\u30c9\u3092\u4f7f\u3063\u3066\u30b5\u30fc\u30d3\u30b9\u304c\u69cb\u7bc9\u3055\u308c\u308b\u3053\u3068\u304c\u5897\u3048\u3066\u3044\u307e\u3059\uff0e\u3053\u306e\u3088\u3046\u306a\u30af\u30e9\u30a6\u30c9\u306e\u30a4\u30f3\u30d5\u30e9\u306b\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\uff0c\u540c\u3058\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u8907\u6570\u306e\u30b5\u30fc\u30d3\u30b9\u304c\u540c\u6642\u306b\u5f71\u97ff\u3092\u53d7\u3051\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff0e<\/p>\n<p>\u6700\u8fd1\u306e\u4e8b\u4f8b\u3068\u3057\u3066\u306f<a href=\"https:\/\/aws.amazon.com\/jp\/message\/41926\/\" rel=\"nofollow noopener\" target=\"_blank\">2017\u5e743\u6708\u306e Amazon S3 \u306e\u969c\u5bb3<\/a>\u306a\u3069\u304c\u3042\u308a\u307e\u3059\uff0e\u3053\u306e\u3068\u304d\u306f Slack \u306a\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u304c\u5f71\u97ff\u3092\u53d7\u3051\u305f\u3088\u3046\u3067\u3059\uff0e\u307e\u305f\uff0c\u3053\u306e\u3068\u304d\u306f AWS \u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u8868\u793a\u3059\u308b\u30da\u30fc\u30b8\u81ea\u4f53\u304c S3 \u3092\u5229\u7528\u3057\u3066\u3044\u305f\u305f\u3081\uff0c\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u3082\u6b63\u3057\u304f\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u73cd\u4e8b\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3057\u305f\uff0e<\/p>\n<h3>\u7aef\u672b\u306e\u554f\u984c<\/h3>\n<p>\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u7e4b\u304c\u3063\u3066\u3044\u308b\u7aef\u672b\u304c\u8907\u6570\u3042\u308a\uff0c\u4e00\u3064\u3067\u306f\u30b5\u30fc\u30d3\u30b9\u306b\u63a5\u7d9a\u3067\u304d\u308b\u304c\uff0c\u4ed6\u65b9\u3067\u306f\u63a5\u7d9a\u51fa\u6765\u306a\u3044\u5834\u5408\u306f\u63a5\u7d9a\u3067\u304d\u306a\u3044\u7aef\u672b\u306b\u554f\u984c\u304c\u3042\u308b\u3053\u3068\u304c\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u3053\u306e\u5834\u5408\u306f\u554f\u984c\u304c\u3042\u308b\u7aef\u672b\u306b\u3064\u3044\u3066\uff0c\u5f8c\u8ff0\u306e\u65b9\u6cd5\u7b49\u3092\u4f7f\u3063\u3066\u539f\u56e0\u3092\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e<\/p>\n<h3>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c<\/h3>\n<p>\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u554f\u984c\u3067\u306f\u306a\u304f\uff0c\u7aef\u672b\u306e\u554f\u984c\u3067\u3082\u306a\u3051\u308c\u3070\uff0c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u3067\u3042\u308b\u3053\u3068\u304c\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u3053\u306e\u5834\u5408\uff0c\u81ea\u5206\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u554f\u984c\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308c\u3070\uff0c\u5916\u5074\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u554f\u984c\u304c\u3042\u308b\u3053\u3068\u3082\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u5916\u5074\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u306e\u4f8b\u3092\u3044\u304f\u3064\u304b\u6319\u3052\u3066\u307f\u307e\u3059\uff0e<\/p>\n<h4>\u30d7\u30ed\u30d0\u30a4\u30c0\u3084\u5927\u5b66\u30fb\u4f1a\u793e\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u969c\u5bb3<\/h4>\n<p>\u30d7\u30ed\u30d0\u30a4\u30c0\u3084\u5927\u5b66\u7b49\u306e\u7d44\u7e54\u306f\u305d\u308c\u305e\u308c\u969c\u5bb3\u60c5\u5831\u3092\u4f55\u3089\u304b\u306e\u5f62\u3067\u63d0\u4f9b\u3057\u3066\u304f\u308c\u3066\u3044\u308b\u306e\u3067\uff0c\u305d\u3061\u3089\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\uff0e<\/p>\n<h4>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u306e\u969c\u5bb3<\/h4>\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u306e\u969c\u5bb3\u306e\u4f8b\u3068\u3057\u3066\u306f\uff0c<a href=\"https:\/\/bgpmon.net\/bgp-leak-causing-internet-outages-in-japan-and-beyond\/\" rel=\"nofollow noopener\" target=\"_blank\">2017\u5e748\u6708\u306b\u767a\u751f\u3057\u305f Google \u304c BGP \u306e\u7d4c\u8def\u60c5\u5831\u3092\u8aa4\u8a2d\u5b9a\u3057\u305f<\/a>\u3082\u306e\u304c\u8a18\u61b6\u306b\u65b0\u3057\u3044\u3067\u3059\uff0e\u3053\u306e\u7d50\u679c\uff0c\u69d8\u3005\u306a\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u63a5\u7d9a\u304c\u56f0\u96e3\u306b\u306a\u308b\u306a\u3069\u306e\u554f\u984c\u304c\u767a\u751f\u3057\u307e\u3057\u305f\uff0e<\/p>\n<h4>\u653f\u5e9c\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5236\u9650\u3057\u3066\u3044\u308b<\/h4>\n<p>\u56fd\u306b\u3088\u3063\u3066\u306f\u653f\u5e9c\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\uff0e\u4e2d\u56fd\u306e\u3082\u306e\u304c\u6709\u540d\u3067\u3059\u304c\uff0c\u5b9f\u969b\u306b\u306f<a href=\"https:\/\/en.wikipedia.org\/wiki\/Internet_censorship_and_surveillance_by_country\" rel=\"nofollow noopener\" target=\"_blank\">\u305d\u306e\u307b\u304b\u306e\u56fd\u3067\u3082\u5236\u9650\u304c\u884c\u308f\u308c\u3066\u3044\u308b<\/a>\u3053\u3068\u304c\u3042\u308b\u3088\u3046\u3067\u3059\uff0e<\/p>\n<p>\u5916\u5074\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u554f\u984c\u304c\u306a\u3044\u3088\u3046\u3067\u3042\u308c\u3070\uff0c\u81ea\u5206\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u7aef\u672b\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u3092\u7591\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n<h2>\u30d7\u30ed\u30c8\u30b3\u30eb\u30b9\u30bf\u30c3\u30af\u3092\u610f\u8b58\u3057\u3066\u554f\u984c\u3092\u63a2\u3059<\/h2>\n<p>\u81ea\u5206\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u7aef\u672b\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u554f\u984c\u304c\u3042\u308a\u305d\u3046\u3068\u3044\u3046\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u3068\u304d\u306b\uff0c\u3069\u306e\u3088\u3046\u306b\u554f\u984c\u767a\u751f\u7b87\u6240\u3092\u898b\u3064\u3051\u308b\u306e\u304c\u826f\u3044\u3067\u3057\u3087\u3046\u304b? \u624b\u5f53\u305f\u308a\u6b21\u7b2c\u306b\u63a2\u3057\u3066\u3082\u52b9\u7387\u304c\u826f\u304f\u306a\u3044\u306e\u3067\uff0c\u3053\u3053\u3067\u306f TCP\/IP \u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u30b9\u30bf\u30c3\u30af (\u30b9\u30a4\u30fc\u30c8) \u306e\u5404\u968e\u5c64\u3092\u610f\u8b58\u3057\u3066\u63a2\u3057\u3066\u3044\u304f\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff0e<\/p>\n<p>Web \u30da\u30fc\u30b8\u3092\u95b2\u89a7\u3059\u308b\u3060\u3051\u3067\u3082\uff0c\u524d\u306b\u66f8\u3044\u305f\u3088\u3046\u306b \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64 (HTTP\u30fbTLS\u30fbDNS)\u30fb\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64 (DNS)\u30fb\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64 (IP)\u30fb\u30ea\u30f3\u30af\u5c64 (Ethernet \u3084 Wi-Fi) \u306a\u3069\uff0c\u69d8\u3005\u306a\u5c64\u306e\u69d8\u3005\u306a\u90e8\u5206\u304c\u6b63\u3057\u304f\u52d5\u4f5c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e\u307e\u305f\uff0c\u3042\u308b\u5c64\u3067\u304d\u3061\u3093\u3068\u901a\u4fe1\u3067\u304d\u308b\u305f\u3081\u306b\u306f\uff0c\u305d\u306e\u5c64\u3088\u308a\u4e0b\u5074\u306e\u5c64\u304c\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e(\u4f8b: \u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e TCP \u3092\u4f7f\u3046\u306b\u306f\uff0c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64\u3068\u30ea\u30f3\u30af\u5c64\u304c\u6b63\u3057\u304f\u52d5\u4f5c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e)<\/p>\n<p><a href=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002.png\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-1932\" src=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-1024x576.png\" alt=\"\" width=\"840\" height=\"473\" srcset=\"https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-1024x576.png 1024w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-300x169.png 300w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-768x432.png 768w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002-1200x675.png 1200w, https:\/\/blog.ymyzk.com\/wp-content\/uploads\/2017\/12\/Network.002.png 1920w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><\/a><\/p>\n<p>\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u3068\u304d\u306f\uff0c\u51fa\u6765\u308b\u9650\u308a\u8981\u7d20\u3092\u6e1b\u3089\u3057\u3066\u691c\u8a3c\u3092\u3059\u308b\u3053\u3068\u3067\u539f\u56e0\u3092\u898b\u3064\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\uff0e\u305f\u3068\u3048\u3070 ping \u3092\u884c\u3046\u305f\u3081\u306b\u306f \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64\u3068\u30fb\u30ea\u30f3\u30af\u5c64\u306e2\u5c64\u304c\u52d5\u4f5c\u3057\u3066\u3044\u308c\u3070\u826f\u3044\u306e\u3067\uff0cHTTP \u3067\u306e\u901a\u4fe1\u3092\u884c\u3046\u3088\u308a\u5fc5\u8981\u306a\u8981\u7d20\u304c\u5c11\u306a\u304f\u306a\u308a\u307e\u3059\uff0eping \u306f\u51fa\u6765\u308b\u304c HTTP \u3067\u306f\u901a\u4fe1\u304c\u51fa\u6765\u306a\u3044\u5834\u5408\uff0c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64\u3088\u308a\u3082\u4e0a\u5074\u306e\u554f\u984c\u3067\u3042\u308b\u3053\u3068\u304c\u7591\u308f\u308c\u307e\u3059\uff0e<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u4e0b\u5074\u306e (\u7269\u7406\u5074\u306e) \u5c64\u304b\u3089\u9806\u306b\u898b\u3066\u3044\u304d\u307e\u3059\uff0e<\/p>\n<h3>\u30ea\u30f3\u30af\u5c64<\/h3>\n<p>\u30ea\u30f3\u30af\u5c64\u306f Ethernet \u3084 Wi-Fi (IEEE 802.11) \u306b\u3042\u305f\u308b\u5c64\u3067\u3059\uff0e\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b Ethernet \u3067\u63a5\u7d9a\u3059\u308c\u3070\u554f\u984c\u306a\u3044\u304c\uff0cWi-Fi \u3067\u63a5\u7d9a\u3057\u305f\u3089\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u5834\u5408\uff0c\u3053\u306e\u5c64\u3067\u306a\u306b\u304b\u306e\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff0e<\/p>\n<p>\u6709\u7dda\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u30b1\u30fc\u30d6\u30eb\u306e\u63a5\u7d9a\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u305f\u308a\uff0c<code>ethtool<\/code> \u306a\u3069\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u307f\u308b\u306e\u3082\u826f\u3044\u3067\u3057\u3087\u3046\uff0e<\/p>\n<pre><code class=\"custom-plain\">$ sudo ethtool enp3s0\r\nSettings for enp3s0:\r\n        Supported ports: [ TP MII ]\r\n        Supported link modes:   10baseT\/Half 10baseT\/Full\r\n                                100baseT\/Half 100baseT\/Full\r\n                                1000baseT\/Half 1000baseT\/Full\r\n        Supported pause frame use: No\r\n        Supports auto-negotiation: Yes\r\n        Advertised link modes:  10baseT\/Half 10baseT\/Full\r\n                                100baseT\/Half 100baseT\/Full\r\n                                1000baseT\/Full\r\n        Advertised pause frame use: Symmetric Receive-only\r\n        Advertised auto-negotiation: Yes\r\n        Link partner advertised link modes:  10baseT\/Half 10baseT\/Full\r\n                                             100baseT\/Half 100baseT\/Full\r\n                                             1000baseT\/Half 1000baseT\/Full\r\n        Link partner advertised pause frame use: No\r\n        Link partner advertised auto-negotiation: Yes\r\n        Speed: 1000Mb\/s\r\n        Duplex: Full\r\n        Port: MII\r\n        PHYAD: 0\r\n        Transceiver: internal\r\n        Auto-negotiation: on\r\n        Supports Wake-on: pumbg\r\n        Wake-on: g\r\n        Current message level: 0x00000033 (51)\r\n                               drv probe ifdown ifup\r\n        Link detected: yes<\/code><\/pre>\n<p>\u7121\u7dda\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\uff0c\u96fb\u6ce2\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u306e\u3082\u4e00\u3064\u3067\u3059\uff0e\u7279\u306b 2.4GHz \u5e2f\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u96fb\u5b50\u30ec\u30f3\u30b8\u7b49\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\uff0e<\/p>\n<p>Ethernet \u3067\u306f MAC \u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3063\u3066\u901a\u4fe1\u304c\u884c\u308f\u308c\u307e\u3059\u304c\uff0cIP \u30a2\u30c9\u30ec\u30b9\u304b\u3089 MAC \u30a2\u30c9\u30ec\u30b9\u3078\u306e\u5909\u63db\u306f ARP \u3068\u3044\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u3063\u3066\u884c\u308f\u308c\u307e\u3059\uff0eARP \u306b\u3088\u3063\u3066 MAC \u30a2\u30c9\u30ec\u30b9\u304c\u6b63\u3057\u304f\u53d6\u5f97\u3067\u304d\u3066\u3044\u308b\u304b\u306f <code>arp<\/code> \u3084 <code>ip<\/code> \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u78ba\u8a8d\u51fa\u6765\u307e\u3059:<\/p>\n<pre><code class=\"custom-plain\">$ sudo arp -a\r\ngateway (10.229.55.126) at 00:12:xx:xx:xx:xx [ether] on eno1\r\nxxxxx (10.229.55.65) at f4:e9:xx:xx:xx:xx [ether] on eno1\r\n\r\n$ ip n\r\n192.168.1.1 dev enp3s0 lladdr 00:a0:xx:xx:xx:xx REACHABLE\r\n192.168.1.60 dev enp3s0 lladdr a0:b3:xx:xx:xx:xx REACHABLE\r\n192.168.1.120 dev enp3s0  FAILED\r\nfe80::xxxx:xxxx:xxxx:xxxx dev enp3s0 lladdr 00:a0:xx:xx:xx:xx router REACHABLE<\/code><\/pre>\n<h3>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/h3>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306f IP \u306e\u5c64\u306b\u306a\u308a\u307e\u3059\uff0e\u307e\u305a IP \u30a2\u30c9\u30ec\u30b9\u3084\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\uff0c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 (\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306a\u3069) \u304c\u9069\u5207\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\uff0e<code>ifconfig<\/code> \u3084 <code>ip<\/code> \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3046\u306e\u304c\u4fbf\u5229\u3067\u3059\uff0e<\/p>\n<pre><code class=\"custom-plain\">$ ifconfig\r\nlo0: flags=8049&lt;UP,LOOPBACK,RUNNING,MULTICAST&gt; mtu 16384                  \r\n        options=1203&lt;RXCSUM,TXCSUM,TXSTATUS,SW_TIMESTAMP&gt;\r\n        inet 127.0.0.1 netmask 0xff000000                            \r\n        inet6 ::1 prefixlen 128                                      \r\n        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1            \r\n        nd6 options=201&lt;PERFORMNUD,DAD&gt;    \r\nen0: flags=8863&lt;UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST&gt; mtu 1500\r\n        ether d0:a6:xx:xx:xx:xx\r\n        inet 192.168.1.201 netmask 0xffffff00 broadcast 192.168.1.255         \r\n        media: autoselect                                   \r\n        status: active<\/code><\/pre>\n<pre><code class=\"custom-plain\">$ 1: lo: &lt;LOOPBACK,UP,LOWER_UP&gt; mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000\r\n    link\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\r\n    inet 127.0.0.1\/8 scope host lo\r\n       valid_lft forever preferred_lft forever\r\n    inet6 ::1\/128 scope host\r\n       valid_lft forever preferred_lft forever\r\n2: enp3s0: &lt;BROADCAST,MULTICAST,UP,LOWER_UP&gt; mtu 1500 qdisc fq_codel state UP group default qlen 1000\r\n    link\/ether f8:b1:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff\r\n    inet 192.168.1.12\/24 brd 192.168.1.255 scope global enp3s0\r\n       valid_lft forever preferred_lft forever\r\n    inet6 240b:250:8900:xxxx:xxxx:xxxx:xxxx:xxxx\/64 scope global dynamic mngtmpaddr\r\n       valid_lft 2592000sec preferred_lft 604800sec\r\n    inet6 fe80::xxxx:xxxx:xxxx:xxxx\/64 scope link\r\n       valid_lft forever preferred_lft forever<\/code><\/pre>\n<p>\u8a2d\u5b9a\u304c\u554f\u984c\u306a\u3055\u305d\u3046\u3067\u3042\u308c\u3070 <code>ping<\/code> \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\uff0eping \u306f IP \u4e0a\u3067\u52d5\u4f5c\u3059\u308b ICMP \u3068\u3044\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5229\u7528\u3057\u307e\u3059\uff0e\u3053\u308c\u304c\u51fa\u6765\u308c\u3070\u3053\u3053\u307e\u3067\u306e\u5404\u5c64\u306f\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\uff0e<\/p>\n<pre><code class=\"custom-plain\">$ ping 192.168.1.1\r\nPING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.\r\n64 bytes from 192.168.1.1: icmp_seq=1 ttl=255 time=0.237 ms\r\n64 bytes from 192.168.1.1: icmp_seq=2 ttl=255 time=0.254 ms\r\n64 bytes from 192.168.1.1: icmp_seq=3 ttl=255 time=0.256 ms\r\n^C\r\n--- 192.168.1.1 ping statistics ---\r\n3 packets transmitted, 3 received, 0% packet loss, time 2004ms\r\nrtt min\/avg\/max\/mdev = 0.237\/0.249\/0.256\/0.008 ms\r\n\r\n$ ping 8.8.8.8\r\nPING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.\r\n64 bytes from 8.8.8.8: icmp_seq=1 ttl=58 time=8.30 ms\r\n64 bytes from 8.8.8.8: icmp_seq=2 ttl=58 time=6.43 ms\r\n64 bytes from 8.8.8.8: icmp_seq=3 ttl=58 time=6.80 ms\r\n^C\r\n--- 8.8.8.8 ping statistics ---\r\n3 packets transmitted, 3 received, 0% packet loss, time 2002ms\r\nrtt min\/avg\/max\/mdev = 6.435\/7.180\/8.304\/0.814 ms\r\n<\/code><\/pre>\n<p>ping \u304c\u5931\u6557\u3059\u308b\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3053\u3068\u304c\u8003\u3048\u3089\u308c\u307e\u3059\uff0e<\/p>\n<ul>\n<li>\u8a2d\u5b9a\u304c\u9593\u9055\u3063\u3066\u3044\u3066\u901a\u4fe1\u3067\u304d\u306a\u3044\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b<\/li>\n<li>ping \u5148\u306e\u30b5\u30fc\u30d0\u30fc\u304c ping \u3092\u8fd4\u3055\u306a\u3044\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b (Google \u306e\u30b5\u30fc\u30d0\u30fc\u306f ping \u3092\u8fd4\u3057\u3066\u304f\u308c\u308b\u306e\u3067\u304a\u3059\u3059\u3081\u3067\u3059)<\/li>\n<li>\u4e0a\u4f4d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (\u4f01\u696d\u3084\u5927\u5b66\u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af) \u304c ping \u3092\u901a\u3055\u306a\u3044\u3088\u3046\u306b\u5236\u9650\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n<p>IP\u5c64\u307e\u3067\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3082\uff0cping \u304c\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\uff0e\u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089 ping \u304c\u901a\u308b\u304b\u3069\u3046\u304b\u3092\u666e\u6bb5\u304b\u3089\u628a\u63e1\u3057\u3066\u304a\u304f\u3068\u3044\u3056\u3068\u3044\u3046\u3068\u304d\u306b\u5f79\u7acb\u3061\u307e\u3059\uff0e<\/p>\n<h3>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/h3>\n<p>TCP \u3084 UDP \u306b\u8a72\u5f53\u3059\u308b\u5c64\u3067\u3059\uff0eIP \u3068\u9055\u3063\u3066\u3053\u306e\u5c64\u306f\u7279\u306b\u8a2d\u5b9a\u3092\u3057\u306a\u304f\u3066\u3082\u52d5\u304f\u90e8\u5206\u306b\u306a\u308a\u307e\u3059\uff0e\u305f\u3060\u3057\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u7b49\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u305f\u308a\uff0c\u4e0a\u4f4d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u306e\u901a\u4fe1\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\uff0e\u4f8b\u3048\u3070 OP25B \u3068\u547c\u3070\u308c\u308b\uff0c\u5916\u5411\u3051\u306e TCP 25 \u756a\u30dd\u30fc\u30c8\u3078\u306e\u901a\u4fe1\u306f\u591a\u304f\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u306b\u3088\u3063\u3066\u5236\u9650\u3055\u308c\u3066\u3044\u307e\u3059\u3057\uff0c\u4f01\u696d\u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f HTTP \u306a\u3069\u306e\u9650\u3089\u308c\u305f\u30dd\u30fc\u30c8\u3092\u9664\u3044\u3066\u901a\u4fe1\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3082\u3057\u3070\u3057\u3070\u3042\u308a\u307e\u3059\uff0e<\/p>\n<p>\u30dd\u30fc\u30c8\u30b9\u30ad\u30e3\u30f3\u3092\u884c\u3046\u3068\uff0c\u3069\u306e\u30dd\u30fc\u30c8\u3067\u901a\u4fe1\u304c\u53ef\u80fd\u304b\u3092\u78ba\u8a8d\u3059\u308b\u52a9\u3051\u306b\u306a\u308a\u307e\u3059\uff0e\u30dd\u30fc\u30c8\u30b9\u30ad\u30e3\u30f3\u3092\u884c\u3048\u308b\u30c4\u30fc\u30eb\u3068\u3057\u3066\u306f nmap \u304c\u6709\u540d\u3067\u3059\uff0e\u3053\u306e\u30d6\u30ed\u30b0\u306b HTTPS (TCP 443) \u3067\u63a5\u7d9a\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u691c\u8a3c\u3067\u304d\u307e\u3059:<\/p>\n<pre><code class=\"custom-plain\">$ nmap -p 443 blog.ymyzk.com\r\nStarting Nmap 7.60 ( https:\/\/nmap.org ) at 2017-12-02 20:52 JST\r\nNmap scan report for blog.ymyzk.com (160.16.75.53)\r\nHost is up (0.20s latency).\r\nOther addresses for blog.ymyzk.com (not scanned): 2001:e42:102:1513:160:16:75:53\r\nrDNS record for 160.16.75.53: xxxx.ymyzk.com\r\n\r\nPORT    STATE SERVICE\r\n443\/tcp open  https\r\n\r\nNmap done: 1 IP address (1 host up) scanned in 0.33 seconds\r\n<\/code><\/pre>\n<p>\u30dd\u30fc\u30c8\u30b9\u30ad\u30e3\u30f3\u306f\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u653b\u6483\u3068\u3082\u6349\u3048\u3089\u308c\u3046\u308b\u306e\u3067\uff0c\u81ea\u5206\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u4ee5\u5916\u3078\u884c\u3046\u969b\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n<h3>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/h3>\n<p>HTTP\u30fbTLS\/SSL\u30fbDNS\u30fbSSH \u306e\u3088\u3046\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u542b\u307e\u308c\u308b\u5c64\u3067\u3059\uff0e\u3053\u306e\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u6bce\u306b\u69d8\u3005\u306a\u3082\u306e\u304c\u3042\u308a\uff0c\u3053\u308c\u307e\u3067\u306b\u7d39\u4ecb\u3057\u305f\u5c64\u3088\u308a\u304b\u306a\u308a\u591a\u304f\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u5b58\u5728\u3057\u307e\u3059\uff0e<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f DNS \u3068 HTTP \u306b\u3064\u3044\u3066\u7c21\u5358\u306b\u89e6\u308c\u307e\u3059\uff0e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u306f\uff0c\u57fa\u672c\u7684\u306b\u30b5\u30fc\u30d0\u30fc\u3084\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30ed\u30b0\u3092\u8aad\u3093\u3067\u554f\u984c\u304c\u306a\u3044\u304b\u8abf\u67fb\u3059\u308b\u306e\u304c\u898b\u308b\u306e\u304c\u826f\u3044\u3068\u304a\u3082\u3044\u307e\u3059\uff0e<\/p>\n<h4>DNS<\/h4>\n<p>DNS \u306f IP \u30a2\u30c9\u30ec\u30b9\u3068\u30db\u30b9\u30c8\u540d\u306e\u76f8\u4e92\u306e\u5909\u63db\u3092\u884c\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\uff0e\u591a\u304f\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067 IP \u30a2\u30c9\u30ec\u30b9\u3092\u76f4\u63a5\u6307\u5b9a\u3059\u308b\u3088\u308a\uff0c\u30db\u30b9\u30c8\u540d\u3092\u4f7f\u3063\u3066\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\uff0cDNS \u304c\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306e\u306f\u91cd\u8981\u3067\u3059\uff0e<code>nslookup<\/code> \u3084 <code>dig<\/code> \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3046\u3068\uff0c\u5b9f\u969b\u306b DNS \u3092\u4f7f\u3063\u3066\u30db\u30b9\u30c8\u540d\u304b\u3089 IP \u30a2\u30c9\u30ec\u30b9\u3092\u5f15\u3044\u3066\u6b63\u3057\u304f\u5f15\u3051\u308b\u304b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\uff0e<\/p>\n<pre><code class=\"custom-plain\">$ nslookup google.com\r\nServer:         192.168.1.77\r\nAddress:        192.168.1.77#53\r\n\r\nNon-authoritative answer:\r\nName:   google.com\r\nAddress: 216.58.199.238\r\n\r\n$ dig google.com\r\n; &lt;&lt;&gt;&gt; DiG 9.11.2 &lt;&lt;&gt;&gt; google.com\r\n;; global options: +cmd\r\n;; Got answer:\r\n;; -&gt;&gt;HEADER&lt;&lt;- opcode: QUERY, status: NOERROR, id: 51434\r\n;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1\r\n\r\n;; OPT PSEUDOSECTION:\r\n; EDNS: version: 0, flags:; udp: 4096\r\n;; QUESTION SECTION:\r\n;google.com.                    IN      A\r\n\r\n;; ANSWER SECTION:\r\ngoogle.com.             51      IN      A       216.58.199.238\r\n\r\n;; Query time: 1 msec\r\n;; SERVER: 192.168.1.77#53(192.168.1.77)\r\n;; WHEN: Sat Dec 02 21:56:36 JST 2017\r\n;; MSG SIZE  rcvd: 55<\/code><\/pre>\n<p>DNS \u30b5\u30fc\u30d0\u30fc\u3092\u5909\u3048\u308b\u3068\u6b63\u3057\u304f DNS \u3092\u5f15\u3051\u308b\u3088\u3046\u306b\u306a\u308b\u5834\u5408\u306f\uff0cDNS \u306e\u8a2d\u5b9a\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u304b\uff0c\u5229\u7528\u3057\u3066\u3044\u308b DNS \u30b5\u30fc\u30d0\u30fc\u306e\u4e0d\u8abf\u304c\u7591\u308f\u308c\u307e\u3059\uff0e<\/p>\n<pre><code class=\"custom-plain\">$ dig google.com\r\n; &lt;&lt;&gt;&gt; DiG 9.11.2 &lt;&lt;&gt;&gt; google.com\r\n; (1 server found)\r\n;; global options: +cmd\r\n;; connection timed out; no servers could be reached\r\n\r\n$ dig @8.8.8.8 google.com\r\n; &lt;&lt;&gt;&gt; DiG 9.11.2 &lt;&lt;&gt;&gt; @8.8.8.8 google.com\r\n; (1 server found)\r\n;; global options: +cmd\r\n;; Got answer:\r\n;; -&gt;&gt;HEADER&lt;&lt;- opcode: QUERY, status: NOERROR, id: 51505\r\n;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1\r\n\r\n;; OPT PSEUDOSECTION:\r\n; EDNS: version: 0, flags:; udp: 512\r\n;; QUESTION SECTION:\r\n;google.com.                    IN      A\r\n\r\n;; ANSWER SECTION:\r\ngoogle.com.             299     IN      A       172.217.27.174\r\n\r\n;; Query time: 47 msec\r\n;; SERVER: 8.8.8.8#53(8.8.8.8)\r\n;; WHEN: Sat Dec 02 21:54:19 JST 2017\r\n;; MSG SIZE  rcvd: 55<\/code><\/pre>\n<h4>HTTP(S)<\/h4>\n<p>HTTP \u306f Web \u30da\u30fc\u30b8\u3092\u95b2\u89a7\u3059\u308b\u3068\u304d\u306b\u5229\u7528\u3055\u308c\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\uff0e500 Internal Server Error \u306e\u3088\u3046\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\u5834\u5408\u306f\u57fa\u672c\u7684\u306b\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u554f\u984c\u306a\u306e\u3067\uff0c\u3053\u3061\u3089\u3067\u306f\u3069\u3046\u3057\u3088\u3046\u3082\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u305b\u3093\uff0eHTTP \u95a2\u4fc2\u3067\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u7c21\u5358\u306b\u8a66\u305b\u308b\u3053\u3068\u3068\u3057\u3066\u306f\uff0cWeb \u30d6\u30e9\u30a6\u30b6\u3092\u5909\u66f4\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff0e<\/p>\n<p>\u6700\u8fd1\u306f HTTPS \u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3082\u5897\u3048\u3066\u3044\u308b\u305f\u3081\uff0cTLS\/SSL \u306b\u3064\u3044\u3066\u3082\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0eTLS\/SSL \u3067\u306f\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u3092\u5207\u3089\u3057\u3066\u3057\u307e\u3063\u305f\u7d50\u679c\uff0c\u969c\u5bb3\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff0e<a href=\"https:\/\/www.infoq.com\/jp\/news\/2013\/03\/feb22_azure_outage\" rel=\"nofollow noopener\" target=\"_blank\">2013\u5e74\u306b\u306f\u3053\u308c\u304c\u539f\u56e0\u3067 Azure \u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u30b5\u30fc\u30d3\u30b9\u306b\u969c\u5bb3\u304c\u767a\u751f<\/a>\u3057\u307e\u3057\u305f\uff0e\u307e\u305f\uff0c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e\u6a5f\u5668\u306e\u6642\u8a08\u304c\u305a\u308c\u3066\u3044\u308b\u3068\uff0c\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u306e\u30c1\u30a7\u30c3\u30af\u306b\u5931\u6557\u3059\u308b\u3068\u3044\u3063\u305f\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\uff0e<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u300d\u3068\u304d\u306e\u539f\u56e0\u306e\u63a2\u3057\u65b9\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3057\u305f\uff0e\u5177\u4f53\u7684\u306b\u306f\uff0c\u76f4\u8fd1\u306e\u5909\u66f4\u70b9\u3092\u7591\u3046\u65b9\u6cd5\uff0c\u554f\u984c\u304c\u8d77\u3053\u3063\u3066\u308b\u7b87\u6240\u3092\u5927\u307e\u304b\u306b\u5207\u308a\u5206\u3051\u308b\u65b9\u6cd5\uff0c\u30d7\u30ed\u30c8\u30b3\u30eb\u30b9\u30bf\u30c3\u30af\u3092\u610f\u8b58\u3057\u3066\u554f\u984c\u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\u306e3\u3064\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\uff0e\u3053\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3067\u304d\u305f\u77e5\u898b\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3059\u304c\uff0c\u7686\u3055\u3093\u306e\u304a\u5f79\u306b\u7acb\u3066\u3070\u5e78\u3044\u3067\u3059\uff0e<\/p>\n<p><a href=\"https:\/\/advent.camph.net\" rel=\"nofollow noopener\" target=\"_blank\">CAMPHOR- Advent Calendar 2017<\/a> \u306e\u660e\u65e5\u306e\u62c5\u5f53\u306f @ishiy1993 \u3067\u3059\uff0e\u304a\u697d\u3057\u307f\u306b!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306f CAMPHOR- Advent Calendar 2017 4\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\uff0e \u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u5b50\u304c\u60aa\u3044\u300d\u3068\u3044\u3046\u8a71\u3092\u3057\u3070\u3057\u3070\u8033\u306b\u3057\u307e\u3059\uff0e\u3053\u306e\u3088\u3046\u306a\u3068\u304d\u306b\u3068\u308a\u3042\u3048\u305a\u8a2d\u5b9a\u3092\u3044\u3058\u3063\u3066\u307f\u305f\u308a\uff0c\u6a5f\u5668\u306e\u96fb\u6e90\u3092\u5165\u308c\u76f4\u3057\u3066 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1938,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[100,57],"_links":{"self":[{"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/posts\/1907"}],"collection":[{"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/comments?post=1907"}],"version-history":[{"count":31,"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/posts\/1907\/revisions"}],"predecessor-version":[{"id":1975,"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/posts\/1907\/revisions\/1975"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/media\/1938"}],"wp:attachment":[{"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/media?parent=1907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/categories?post=1907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ymyzk.com\/wp-json\/wp\/v2\/tags?post=1907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}