{"id":2768,"date":"2024-12-24T17:49:28","date_gmt":"2024-12-24T08:49:28","guid":{"rendered":"https:\/\/bmb.jp\/maildeliver\/?p=2768"},"modified":"2026-03-26T12:38:27","modified_gmt":"2026-03-26T03:38:27","slug":"dns-error","status":"publish","type":"post","link":"https:\/\/bmb.jp\/maildeliver\/dns-error","title":{"rendered":"DNS\u30a8\u30e9\u30fc\u3068\u306f\uff1f\u540d\u524d\u89e3\u6c7a\u306e\u4ed5\u7d44\u307f\u304b\u3089\u539f\u56e0\u30fb\u89e3\u6c7a\u7b56\u307e\u3067\u5b8c\u5168\u89e3\u8aac"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"628\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/12\/dns-error.jpg\" alt=\"DNS\u30a8\u30e9\u30fc\u3068\u306f\uff1f\u540d\u524d\u89e3\u6c7a\u306e\u4ed5\u7d44\u307f\u304b\u3089\u539f\u56e0\u30fb\u89e3\u6c7a\u7b56\u307e\u3067\u5b8c\u5168\u89e3\u8aac \u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" class=\"wp-image-2769\"\/><\/figure>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3068\u304d\u306b\u3001\u7a81\u7136\u300cDNS\u30a8\u30e9\u30fc\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u906d\u9047\u3057\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u3087\u3046\u304b\u3002DNS\u30a8\u30e9\u30fc\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u308a\u3001\u30e1\u30fc\u30eb\u306e\u9001\u53d7\u4fe1\u304c\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u308a\u3068\u65e5\u5e38\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6d3b\u52d5\u306b\u5927\u304d\u306a\u652f\u969c\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u306e\u539f\u56e0\u3084\u89e3\u6c7a\u7b56\u3092\u6b63\u78ba\u306b\u7406\u89e3\u3057\u3066\u3044\u308b\u4eba\u306f\u610f\u5916\u3068\u5c11\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>DNS\uff08Domain Name System\uff09\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u57fa\u76e4\u3092\u652f\u3048\u308b\u91cd\u8981\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u3042\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3092IP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u304c\u6b63\u5e38\u306b\u6a5f\u80fd\u3057\u306a\u3044\u5834\u5408\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u8868\u793a\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u300cDNS\u30a8\u30e9\u30fc\u300d\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u305d\u306e\u539f\u56e0\u306f\u30eb\u30fc\u30bf\u30fc\u3084\u30c7\u30d0\u30a4\u30b9\u306e\u8a2d\u5b9a\u30df\u30b9\u304b\u3089\u3001DNS\u30b5\u30fc\u30d0\u30fc\u306e\u969c\u5bb3\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u306e\u554f\u984c\u306b\u81f3\u308b\u307e\u3067\u591a\u5c90\u306b\u308f\u305f\u308a\u307e\u3059\u3002\u307e\u305f\u3001DNS\u30a8\u30e9\u30fc\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u5229\u7528\u3060\u3051\u3067\u306a\u304f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u30ea\u30b9\u30af\u3082\u4f34\u3046\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u65e9\u6025\u306a\u5bfe\u5fdc\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306fDNS\u30a8\u30e9\u30fc\u306e\u4ed5\u7d44\u307f\u3084\u539f\u56e0\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3001\u521d\u5fc3\u8005\u3067\u3082\u5b9f\u8df5\u3067\u304d\u308b\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u65b9\u6cd5\u3084\u4e88\u9632\u7b56\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img decoding=\"async\" width=\"1360\" height=\"350\" src=\"https:\/\/bmb.jp\/maildeliver\/wp-content\/uploads\/2024\/02\/image.png\" alt=\"Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\u30d0\u30ca\u30fc\" class=\"wp-image-2358\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u3068\u306f\uff1f\u305d\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u3068\u306f\u30c9\u30e1\u30a4\u30f3\u540d\u3092IP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u969b\u306b\u554f\u984c\u304c\u767a\u751f\u3057\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308b\u73fe\u8c61\u3067\u3059\u3002\u3053\u306e\u30a8\u30e9\u30fc\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u57fa\u76e4\u3092\u652f\u3048\u308bDNS\uff08Domain Name System\uff09\u306e\u52d5\u4f5c\u304c\u59a8\u3052\u3089\u308c\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u8d77\u3053\u308a\u307e\u3059\u3002DNS\u306e\u4ed5\u7d44\u307f\u306f\u30e6\u30fc\u30b6\u30fc\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306eURL\u3092\u5165\u529b\u3059\u308b\u3068\u3001DNS\u30b5\u30fc\u30d0\u30fc\u304c\u5bfe\u5fdc\u3059\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u691c\u7d22\u3057\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e0d\u5177\u5408\u3084\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u8a2d\u5b9a\u30df\u30b9\u304c\u3042\u308b\u3068\u3001\u3053\u306e\u5909\u63db\u30d7\u30ed\u30bb\u30b9\u304c\u5931\u6557\u3057DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u306e\u5f79\u5272\u3068\u540d\u524d\u89e3\u6c7a\u306e\u30d7\u30ed\u30bb\u30b9<\/h3>\n\n\n\n<p>DNS\uff08Domain Name System\uff09\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u300c\u4f4f\u6240\u9332\u300d\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u79c1\u305f\u3061\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3059\u308b\u969b\u306b\u5165\u529b\u3059\u308bURL\uff08\u4f8b\uff1awww.example.com\uff09\u306f\u3001\u4eba\u9593\u306b\u3068\u3063\u3066\u306f\u5206\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u304c\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u76f4\u63a5\u7406\u89e3\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u3001DNS\u304cURL\u3092IP\u30a2\u30c9\u30ec\u30b9\uff08\u4f8b\uff1a192.168.1.1\uff09\u306b\u5909\u63db\u3057\u3001\u901a\u4fe1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u5909\u63db\u30d7\u30ed\u30bb\u30b9\u306f\u300c\u540d\u524d\u89e3\u6c7a\u300d\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>DNS\u306e\u4ed5\u7d44\u307f\u306f\u968e\u5c64\u69cb\u9020\u306e\u5206\u6563\u578b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u57fa\u3065\u3044\u3066\u304a\u308a\u52b9\u7387\u7684\u306a\u540d\u524d\u89e3\u6c7a\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6d41\u308c\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li>\u30ed\u30fc\u30ab\u30eb\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u3044\u5408\u308f\u305b\u308b<\/li>\n\n\n\n<li>\u898b\u3064\u304b\u3089\u306a\u3051\u308c\u3070\u4e0a\u4f4d\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u3044\u5408\u308f\u305b\u308b<\/li>\n\n\n\n<li>\u6700\u7d42\u7684\u306b\u6a29\u5a01DNS\u30b5\u30fc\u30d0\u30fc\u3067\u89e3\u6c7a\u3057\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u8fd4\u3059<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u304c\u30b9\u30e0\u30fc\u30ba\u306b\u6a5f\u80fd\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u610f\u8b58\u3059\u308b\u3053\u3068\u306a\u304f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u304c\u793a\u3059\u610f\u5473\u3068\u5f71\u97ff<\/h3>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068\u30d6\u30e9\u30a6\u30b6\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u898b\u3064\u3051\u3089\u308c\u305a\u3001\u7d50\u679c\u7684\u306b\u30b5\u30a4\u30c8\u304c\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30a8\u30e9\u30fc\u306f\u4e00\u6642\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u969c\u5bb3\u3084DNS\u30b5\u30fc\u30d0\u30fc\u306e\u554f\u984c\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u8981\u56e0\u3067\u5f15\u304d\u8d77\u3053\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u306e\u5f71\u97ff\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u95b2\u89a7\u306b\u3068\u3069\u307e\u308a\u307e\u305b\u3093\u3002\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3082DNS\u3092\u4f7f\u7528\u3057\u3066\u5b9b\u5148\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u3001DNS\u30a8\u30e9\u30fc\u304c\u539f\u56e0\u3067\u30e1\u30fc\u30eb\u306e\u9001\u53d7\u4fe1\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u30b2\u30fc\u30e0\u3084\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u3067\u3082\u30a8\u30e9\u30fc\u304c\u5f71\u97ff\u3059\u308b\u305f\u3081\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u822c\u306b\u5927\u304d\u306a\u652f\u969c\u3092\u304d\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u306b\u906d\u9047\u3057\u305f\u5834\u5408\u306f\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3001\u9069\u5207\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af<\/h3>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u304c\u7d61\u3080\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3082\u7121\u8996\u3067\u304d\u307e\u305b\u3093\u3002\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u304cDNS\u3092\u60aa\u7528\u3059\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u3001\u4ee3\u8868\u7684\u306a\u3082\u306e\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list -list-under-dashed has-swl-pale-02-background-color has-background\">\n<li><strong>DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u30dd\u30a4\u30ba\u30cb\u30f3\u30b0<\/strong><br>DNS\u30b5\u30fc\u30d0\u30fc\u306b\u507d\u306e\u60c5\u5831\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u305b\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u507d\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u8a98\u5c0e\u3059\u308b\u653b\u6483\u3002<\/li>\n\n\n\n<li><strong>DNS\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u653b\u6483<\/strong><br>\u5927\u91cf\u306eDNS\u30af\u30a8\u30ea\u3092\u7279\u5b9a\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u308a\u3064\u3051\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u30c0\u30a6\u30f3\u3055\u305b\u308bDDoS\u653b\u6483\u306e\u4e00\u7a2e\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u653b\u6483\u304b\u3089\u8eab\u3092\u5b88\u308b\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u5bfe\u7b56\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-gray-background-color has-background\">\n<li>\u4fe1\u983c\u3067\u304d\u308bDNS\u30b5\u30fc\u30d0\u30fc\u3092\u5229\u7528\u3059\u308b<\/li>\n\n\n\n<li>DNS\u30b5\u30fc\u30d0\u30fc\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u3092\u5f37\u5316\u3059\u308b<\/li>\n\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30d5\u30c8\u3092\u5c0e\u5165\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3067\u3001DNS\u30a8\u30e9\u30fc\u3092\u60aa\u7528\u3057\u305f\u653b\u6483\u3078\u306e\u8010\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u901a\u4fe1\u3092\u59a8\u3052\u308b\u539f\u56e0\u3068\u306a\u308b\u73fe\u8c61\u3067\u3059\u304c\u3001\u305d\u306e\u4ed5\u7d44\u307f\u3092\u77e5\u308b\u3053\u3068\u3067\u9069\u5207\u306a\u5bfe\u7b56\u304c\u53d6\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u9805\u76ee\u3067\u306fDNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3068\u3001\u305d\u306e\u5f71\u97ff\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u6d41\u308c<\/h3>\n\n\n\n<p>DNS\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u30c7\u30d0\u30a4\u30b9\u304b\u3089DNS\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3066\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u89e3\u6c7a\u3092\u4f9d\u983c\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u30b9\u30e0\u30fc\u30ba\u306b\u884c\u308f\u308c\u306a\u3044\u5834\u5408\u3001DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002DNS\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u57fa\u672c\u7684\u306a\u6d41\u308c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list is-style-index -list-under-dashed has-swl-pale-02-background-color has-background\">\n<li>\u30c7\u30d0\u30a4\u30b9\u304c\u30ed\u30fc\u30ab\u30eb\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u53c2\u7167\u3057\u3001\u65e2\u5b58\u60c5\u5831\u304c\u306a\u3044\u5834\u5408\u306fDNS\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u3044\u5408\u308f\u305b\u3092\u9001\u4fe1\u3002<\/li>\n\n\n\n<li>DNS\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u4e0a\u4f4d\u306e\u6a29\u5a01DNS\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u3044\u5408\u308f\u305b\u3092\u30ea\u30ec\u30fc\u3057\u3001\u6700\u7d42\u7684\u306aIP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3002<\/li>\n\n\n\n<li>\u30c7\u30d0\u30a4\u30b9\u306bIP\u30a2\u30c9\u30ec\u30b9\u3092\u30ec\u30b9\u30dd\u30f3\u30b9\u3068\u3057\u3066\u8fd4\u5374\u3002<br>\u3053\u306e\u6d41\u308c\u304c\u9014\u7d76\u3048\u308b\u3068\u3001DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u304c\u4e0e\u3048\u308b\u5f71\u97ff<\/h3>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3060\u3051\u3067\u306a\u304f\u3001\u30e1\u30fc\u30eb\u9001\u53d7\u4fe1\u3084\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528\u306b\u3082\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4f01\u696d\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u4f1a\u8b70\u3084\u30c7\u30fc\u30bf\u5171\u6709\u304c\u9014\u7d76\u3048\u305f\u308a\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30b5\u30fc\u30d3\u30b9\u304c\u5229\u7528\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002DNS\u30a8\u30e9\u30fc\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6d3b\u52d5\u5168\u822c\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u554f\u984c\u306e\u91cd\u8981\u6027\u3092\u8a8d\u8b58\u3059\u308b\u3046\u3048\u3067\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u306e\u4e3b\u306a\u539f\u56e0\u3092\u5fb9\u5e95\u89e3\u5256<\/h2>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u306f\u591a\u5c90\u306b\u308f\u305f\u308a\u307e\u3059\u304c\u3001\u4e3b\u306a\u8981\u56e0\u3068\u3057\u3066\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002DNS\u30b5\u30fc\u30d0\u30fc\u306e\u30c0\u30a6\u30f3\u3084\u5fdc\u7b54\u9045\u5ef6\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4e0d\u6574\u5408\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u30df\u30b9\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30d5\u30c8\u306b\u3088\u308b\u901a\u4fe1\u306e\u30d6\u30ed\u30c3\u30af\u3001\u305d\u3057\u3066\u30c9\u30e1\u30a4\u30f3\u306e\u671f\u9650\u5207\u308c\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u5074\u306e\u8a2d\u5b9a\u30df\u30b9\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u554f\u984c\u304c\u5f71\u97ff\u3092\u53ca\u307c\u3059\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b\u306b\u306f\u3001\u30a8\u30e9\u30fc\u767a\u751f\u6642\u306e\u72b6\u6cc1\u3084\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8a73\u3057\u304f\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306e\u4e0d\u5177\u5408<\/h3>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306e\u4e0d\u5177\u5408\u306e\u6700\u3082\u4e00\u822c\u7684\u306a\u539f\u56e0\u306f\u3001\u56de\u7dda\u81ea\u4f53\u3084Wi-Fi\u30eb\u30fc\u30bf\u30fc\u3001\u30e2\u30c7\u30e0\u306e\u554f\u984c\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u6a5f\u5668\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3084\u56de\u7dda\u696d\u8005\u5074\u3067\u30c8\u30e9\u30d6\u30eb\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305a\u3001\u30eb\u30fc\u30bf\u30fc\u3084\u30e2\u30c7\u30e0\u306e\u30e9\u30f3\u30d7\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u7570\u5e38\u304c\u898b\u3089\u308c\u308b\u5834\u5408\u306f\u518d\u8d77\u52d5\u3092\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u56de\u7dda\u306e\u4e0d\u5177\u5408\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u539f\u56e0\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li>\u30b1\u30fc\u30d6\u30eb\u306e\u63a5\u7d9a\u4e0d\u826f<\/li>\n\n\n\n<li>\u30eb\u30fc\u30bf\u30fc\u306e\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u306e\u4e0d\u5177\u5408<\/li>\n\n\n\n<li>\u30d7\u30ed\u30d0\u30a4\u30c0\u5074\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3084\u969c\u5bb3<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u7279\u5b9a\u3059\u308b\u306b\u306f\u4e00\u3064\u305a\u3064\u691c\u8a3c\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30d7\u30ed\u30d0\u30a4\u30c0\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u307e\u305f\u3001Wi-Fi\u96fb\u6ce2\u304c\u5f31\u3044\u5834\u5408\u306f\u30eb\u30fc\u30bf\u30fc\u306e\u4f4d\u7f6e\u3092\u8abf\u6574\u3057\u305f\u308a\u3001\u4e2d\u7d99\u6a5f\u306e\u5c0e\u5165\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u3067\u6539\u5584\u3067\u304d\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u554f\u984c<\/h3>\n\n\n\n<p>DNS\u30b5\u30fc\u30d0\u30fc\u304c\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u3001\u3082\u3057\u304f\u306f\u30a2\u30af\u30bb\u30b9\u304c\u96c6\u4e2d\u3057\u3066\u6df7\u96d1\u3057\u3066\u3044\u308b\u5834\u5408\u3001DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308bDNS\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u3053\u3068\u3082\u539f\u56e0\u306b\u306a\u308a\u5f97\u307e\u3059\u3002<\/p>\n\n\n\n<p>DNS\u30b5\u30fc\u30d0\u30fc\u306e\u4e0d\u5177\u5408\u306e\u4e3b\u306a\u539f\u56e0\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-gray-background-color has-background\">\n<li>\u30b5\u30fc\u30d0\u30fc\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e2d\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0<\/li>\n\n\n\n<li>\u5927\u91cf\u306e\u30a2\u30af\u30bb\u30b9\u306b\u3088\u308b\u6df7\u96d1<\/li>\n\n\n\n<li>\u8a2d\u5b9a\u30df\u30b9\u306b\u3088\u308b\u30a2\u30c9\u30ec\u30b9\u306e\u9593\u9055\u3044<\/li>\n<\/ul>\n\n\n\n<p>\u30e6\u30fc\u30b6\u30fc\u5074\u3067\u3067\u304d\u308b\u5bfe\u7b56\u3068\u3057\u3066\u3001\u5225\u306e\u4fe1\u983c\u3067\u304d\u308bDNS\u30b5\u30fc\u30d0\u30fc\uff08\u4f8b\uff1aGoogle Public DNS\u3084Cloudflare\uff09\u3092\u8a66\u3059\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002\u307e\u305f\u3001\u8a2d\u5b9a\u30df\u30b9\u304c\u7591\u308f\u308c\u308b\u5834\u5408\u306f\u30d7\u30ed\u30d0\u30a4\u30c0\u304b\u3089\u63d0\u4f9b\u3055\u308c\u305f\u6b63\u3057\u3044DNS\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30d0\u30a4\u30b9\u3084\u30d6\u30e9\u30a6\u30b6\u306e\u4e00\u6642\u7684\u306a\u30a8\u30e9\u30fc<\/h3>\n\n\n\n<p>PC\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306a\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u3001\u307e\u305f\u306f\u30d6\u30e9\u30a6\u30b6\u81ea\u4f53\u304c\u539f\u56e0\u3067DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u53e4\u304f\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u306b\u767a\u751f\u3057\u3084\u3059\u3044\u3067\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3057\u30c7\u30d0\u30a4\u30b9\u3084\u30d6\u30e9\u30a6\u30b6\u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u7279\u5b9a\u306e\u30d6\u30e9\u30a6\u30b6\u62e1\u5f35\u6a5f\u80fd\u3084\u8a2d\u5b9a\u304cDNS\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u62e1\u5f35\u6a5f\u80fd\u304cDNS\u306e\u52d5\u4f5c\u3092\u59a8\u3052\u305f\u308a\u30d6\u30e9\u30a6\u30b6\u8a2d\u5b9a\u306e\u5909\u66f4\u304c\u539f\u56e0\u3067\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f\u62e1\u5f35\u6a5f\u80fd\u3092\u4e00\u6642\u7684\u306b\u7121\u52b9\u5316\u3059\u308b\u304b\u3001\u8a2d\u5b9a\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u3066\u8a66\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5171\u6709\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u69cb\u6210<\/h3>\n\n\n\n<p>\u4f01\u696d\u3084\u5b66\u6821\u306a\u3069\u306e\u5171\u6709\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u4ed6\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u30a2\u30af\u30bb\u30b9\u72b6\u6cc1\u304c\u539f\u56e0\u3067DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u5b9a\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u96c6\u4e2d\u3059\u308b\u3068\u3001DNS\u30b5\u30fc\u30d0\u30fc\u304c\u904e\u8ca0\u8377\u306b\u306a\u308a\u5fdc\u7b54\u304c\u9045\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5171\u6709\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u3092\u7279\u5b9a\u3059\u308b\u306b\u306f\u4ee5\u4e0b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u306b\u76f8\u8ac7\u3057\u3001DNS\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306e\u9069\u6b63\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u304cDNS\u30a2\u30af\u30bb\u30b9\u3092\u5236\u9650\u3057\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b<\/li>\n\n\n\n<li>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u5225\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3092\u8a2d\u5b9a\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u554f\u984c\u306f\u500b\u4eba\u3067\u89e3\u6c7a\u3059\u308b\u306e\u304c\u96e3\u3057\u3044\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u7ba1\u7406\u8005\u3078\u306e\u9023\u7d61\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u5074\u306e\u9589\u9396\u3084\u79fb\u8ee2<\/h3>\n\n\n\n<p>\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u9589\u9396\u3055\u308c\u305f\u308a\u3001\u65b0\u3057\u3044URL\u306b\u79fb\u8ee2\u3057\u305f\u5834\u5408\u3082DNS\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3068IP\u30a2\u30c9\u30ec\u30b9\u306e\u7d10\u4ed8\u3051\u304c\u524a\u9664\u3055\u308c\u308b\u305f\u3081\u5f93\u6765\u306eURL\u3067\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u79fb\u8ee2\u5148\u304c\u660e\u3089\u304b\u3067\u3042\u308c\u3070\u65b0\u3057\u3044URL\u3067\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u3067\u554f\u984c\u304c\u89e3\u6c7a\u3057\u307e\u3059\u304c\u3001\u9589\u9396\u3055\u308c\u305f\u5834\u5408\u306f\u305d\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u65b9\u6cd5\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u7ba1\u7406\u8005\u306b\u9023\u7d61\u3057\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u969b\u306b\u306f\u9069\u5207\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u9805\u76ee\u3067\u306f\u5177\u4f53\u7684\u306a\u624b\u9806\u3084\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u305f\u89e3\u6c7a\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30ed\u30b0\u306e\u78ba\u8a8d\u3068\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306e\u7406\u89e3<\/h3>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u30c7\u30d0\u30a4\u30b9\u3084\u30d6\u30e9\u30a6\u30b6\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u7b2c\u4e00\u6b69\u3067\u3059\u3002\u4ee3\u8868\u7684\u306a\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-gray-background-color has-background\">\n<li><strong>DNS_PROBE_FINISHED_NXDOMAIN<\/strong>\uff1a\u6307\u5b9a\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u3002<\/li>\n\n\n\n<li><strong>Server not found<\/strong>\uff1a\u30b5\u30fc\u30d0\u30fc\u306b\u5230\u9054\u3067\u304d\u306a\u3044\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306fDNS\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u554f\u984c\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306e\u4e0d\u5099\u3092\u793a\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8a18\u9332\u3057\u539f\u56e0\u7279\u5b9a\u306e\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u5f79\u7acb\u3064\u30c4\u30fc\u30eb<\/h3>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3092\u7279\u5b9a\u30fb\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u306f\u5c02\u7528\u30c4\u30fc\u30eb\u306e\u6d3b\u7528\u304c\u975e\u5e38\u306b\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li><strong>Ping<\/strong>\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u304c\u6b63\u5e38\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>Traceroute<\/strong>\uff1a\u901a\u4fe1\u7d4c\u8def\u3092\u8ffd\u8de1\u3057\u3001\u3069\u3053\u3067\u63a5\u7d9a\u304c\u9014\u7d76\u3048\u3066\u3044\u308b\u304b\u3092\u7279\u5b9a\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>DNS Checker<\/strong>\uff1aDNS\u30ec\u30b3\u30fc\u30c9\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3001\u30c9\u30e1\u30a4\u30f3\u304c\u6b63\u3057\u304f\u89e3\u6c7a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u691c\u8a3c\u3059\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u554f\u984c\u306e\u539f\u56e0\u3092\u8fc5\u901f\u306b\u628a\u63e1\u3057\u9069\u5207\u306a\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u767a\u751f\u6642\u306e\u89e3\u6c7a\u7b56\uff1a\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u89e3\u6c7a\u3092\u8a66\u307f\u307e\u3057\u3087\u3046\u3002\u307e\u305a\u3001\u30c7\u30d0\u30a4\u30b9\u3092\u518d\u8d77\u52d5\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u3092\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3057\u307e\u3059\u3002\u6b21\u306b\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3084\u30af\u30c3\u30ad\u30fc\u3092\u524a\u9664\u3057\u3066\u304b\u3089\u518d\u8a66\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u308c\u3067\u3082\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u3001DNS\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3057Google Public DNS\u3084Cloudflare\u306e\u3088\u3046\u306a\u4ee3\u66ffDNS\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u30e2\u30c7\u30e0\u3084\u30eb\u30fc\u30bf\u30fc\u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3082\u6709\u52b9\u3067\u3059\u3002\u6700\u5f8c\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3084\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u7ba1\u7406\u8005\u306b\u9023\u7d61\u3057\u3066\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u554f\u984c\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30d0\u30a4\u30b9\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u306e\u518d\u8d77\u52d5<\/h3>\n\n\n\n<p>PC\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306a\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u3001Wi-Fi\u30eb\u30fc\u30bf\u30fc\u3001\u30e2\u30c7\u30e0\u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u306f\u3001DNS\u30a8\u30e9\u30fc\u89e3\u6d88\u306e\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u975e\u5e38\u306b\u6709\u52b9\u3067\u3059\u3002\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3067\u4e00\u6642\u7684\u306a\u30a8\u30e9\u30fc\u3084\u30e1\u30e2\u30ea\u306e\u65ad\u7247\u5316\u304c\u89e3\u6d88\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u518d\u8d77\u52d5\u6642\u306b\u306f\u4ee5\u4e0b\u3092\u884c\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li>\u96fb\u6e90\u3092\u5b8c\u5168\u306b\u30aa\u30d5\u306b\u3059\u308b<\/li>\n\n\n\n<li>\u6570\u5206\u9593\u5f85\u6a5f\u3059\u308b<\/li>\n\n\n\n<li>\u518d\u5ea6\u96fb\u6e90\u3092\u5165\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u7279\u306b\u30eb\u30fc\u30bf\u30fc\u3084\u30e2\u30c7\u30e0\u306f\u8907\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u63a5\u7d9a\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u304c\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3055\u308c\u5b89\u5b9a\u3057\u305f\u63a5\u7d9a\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u624b\u9806\u306f\u7c21\u5358\u3067\u52b9\u679c\u7684\u306a\u305f\u3081\u3001\u307e\u305a\u8a66\u3057\u3066\u307f\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a3a\u65ad\u30c4\u30fc\u30eb\u306e\u6d3b\u7528<\/h3>\n\n\n\n<p>Windows\u3084macOS\u306b\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u3092\u8a3a\u65ad\u3059\u308b\u305f\u3081\u306e\u30c4\u30fc\u30eb\u304c\u6a19\u6e96\u642d\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001DNS\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3092\u7c21\u5358\u306b\u7279\u5b9a\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li><strong>Windows<\/strong>\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a3a\u65ad\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066DNS\u30b5\u30fc\u30d0\u30fc\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c0\u30d7\u30bf\u306e\u554f\u984c\u3092\u78ba\u8a8d<\/li>\n\n\n\n<li><strong>macOS<\/strong>\uff1a\u30ef\u30a4\u30e4\u30ec\u30b9\u8a3a\u65ad\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066Wi-Fi\u63a5\u7d9a\u3084DNS\u306e\u554f\u984c\u3092\u8a3a\u65ad<\/li>\n<\/ul>\n\n\n\n<p>\u8a3a\u65ad\u30c4\u30fc\u30eb\u306f\u3001\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u5177\u4f53\u7684\u306a\u89e3\u6c7a\u7b56\u3092\u63d0\u6848\u3057\u3066\u304f\u308c\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u7279\u5225\u306a\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u5229\u7528\u3067\u304d\u308b\u305f\u3081\u3001DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u969b\u306b\u975e\u5e38\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2<\/h3>\n\n\n\n<p>\u53e4\u3044DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u539f\u56e0\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u3053\u3068\u3067\u554f\u984c\u304c\u89e3\u6d88\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list -list-under-dashed has-swl-gray-background-color has-background\">\n<li><strong>Windows<\/strong><br>\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3067\u300cipconfig\/flushdns\u300d\u3092\u5b9f\u884c<\/li>\n\n\n\n<li><strong>macOS<\/strong><br>\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u300csudo killall -HUP mDNSResponder\u300d\u3092\u5b9f\u884c<\/li>\n<\/ul>\n\n\n\n<p>DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u904e\u53bb\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u60c5\u5831\u3092\u4fdd\u5b58\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5909\u66f4\u304c\u53cd\u6620\u3055\u308c\u306a\u3044\u5834\u5408\u306b\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u30af\u30ea\u30a2\u3059\u308b\u3053\u3068\u3067\u3001\u6700\u65b0\u306eDNS\u60c5\u5831\u3092\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2\u306f\u7c21\u5358\u304b\u3064\u8fc5\u901f\u306b\u884c\u3048\u308b\u305f\u3081\u3001\u8a66\u3059\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30d6\u30ea\u30c3\u30afDNS\u30b5\u30fc\u30d0\u30fc\u306e\u5229\u7528<\/h3>\n\n\n\n<p>Google Public DNS\u3084Cloudflare DNS\u306a\u3069\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30d1\u30d6\u30ea\u30c3\u30afDNS\u30b5\u30fc\u30d0\u30fc\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067DNS\u30a8\u30e9\u30fc\u3092\u56de\u907f\u3067\u304d\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li>Google Public DNS\uff088.8.8.8\u30018.8.4.4\uff09<\/li>\n\n\n\n<li>Cloudflare DNS\uff081.1.1.1\u30011.0.0.1\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u3066\u3044\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u9ad8\u901f\u3067\u5b89\u5b9a\u3057\u305f\u63a5\u7d9a\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u8a2d\u5b9a\u65b9\u6cd5\u306fOS\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u305f\u3081\u3001\u516c\u5f0f\u30b5\u30a4\u30c8\u3092\u53c2\u7167\u3057\u3066\u8a2d\u5b9a\u3092\u884c\u3044\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u554f\u984c\u304c\u3042\u3063\u305f\u5834\u5408\u3067\u3082DNS\u30a8\u30e9\u30fc\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p>\u30d6\u30e9\u30a6\u30b6\u306e\u62e1\u5f35\u6a5f\u80fd\u3084\u8a2d\u5b9a\u304cDNS\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-gray-background-color has-background\">\n<li>\u62e1\u5f35\u6a5f\u80fd\u3092\u4e00\u6642\u7684\u306b\u7121\u52b9\u5316\u3059\u308b<\/li>\n\n\n\n<li>\u30d6\u30e9\u30a6\u30b6\u8a2d\u5b9a\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u5e83\u544a\u30d6\u30ed\u30c3\u30af\u7cfb\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7cfb\u306e\u62e1\u5f35\u6a5f\u80fd\u304cDNS\u306e\u52d5\u4f5c\u3092\u59a8\u5bb3\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30d7\u30ed\u30ad\u30b7\u8a2d\u5b9a\u3084DNS over HTTPS\u306e\u8a2d\u5b9a\u304c\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306e\u8a2d\u5b9a\u78ba\u8a8d\u306f\u7c21\u5358\u306b\u884c\u3048\u308b\u305f\u3081\u3001DNS\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u969b\u306e\u521d\u671f\u5bfe\u5fdc\u3068\u3057\u3066\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u30a8\u30e9\u30fc\u306e\u518d\u767a\u3092\u9632\u3050\u305f\u3081\u306e\u4e88\u9632\u7b56<\/h2>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u3092\u9632\u3050\u305f\u3081\u306b\u306f\u65e5\u5e38\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u91cd\u8981\u3067\u3059\u3002\u5b9a\u671f\u7684\u306bDNS\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3057\u3001\u6700\u65b0\u306eDNS\u30a2\u30c9\u30ec\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3092\u5fc3\u639b\u3051\u307e\u3057\u3087\u3046\u3002\u307e\u305f\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044DNS\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u9078\u629e\u3057\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30d7\u30e9\u30a4\u30de\u30ea\u3068\u30bb\u30ab\u30f3\u30c0\u30eaDNS\u3092\u8a2d\u5b9a\u3057\u3066\u5197\u9577\u6027\u3092\u78ba\u4fdd\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u52a0\u3048\u3066\u3001\u30eb\u30fc\u30bf\u30fc\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u306e\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u3092\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u3057\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3084\u30de\u30eb\u30a6\u30a7\u30a2\u304b\u3089\u30b7\u30b9\u30c6\u30e0\u3092\u4fdd\u8b77\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u65bd\u3059\u3053\u3068\u3082\u52b9\u679c\u7684\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u4e88\u9632\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u3067DNS\u30a8\u30e9\u30fc\u306e\u518d\u767a\u30ea\u30b9\u30af\u3092\u5927\u5e45\u306b\u4f4e\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9a\u671f\u7684\u306a\u30eb\u30fc\u30bf\u30fc\u306e\u518d\u8d77\u52d5<\/h3>\n\n\n\n<p>\u30eb\u30fc\u30bf\u30fc\u306f\u9577\u671f\u9593\u7a3c\u50cd\u3055\u305b\u7d9a\u3051\u308b\u3068\u4e00\u6642\u7684\u306a\u4e0d\u5177\u5408\u304c\u767a\u751f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u539f\u56e0\u3068\u3057\u3066\u3001\u5185\u90e8\u30e1\u30e2\u30ea\u306e\u65ad\u7247\u5316\u3084\u51e6\u7406\u30a8\u30e9\u30fc\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u306f\u5b9a\u671f\u7684\u306a\u518d\u8d77\u52d5\u306b\u3088\u3063\u3066\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3055\u308c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u624b\u9806\u3092\u53c2\u8003\u306b\u3057\u3066\u3001\u30eb\u30fc\u30bf\u30fc\u3092\u5b9a\u671f\u7684\u306b\u518d\u8d77\u52d5\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li>\u96fb\u6e90\u3092\u5b8c\u5168\u306b\u30aa\u30d5\u306b\u3059\u308b<\/li>\n\n\n\n<li>2\u301c3\u5206\u5f85\u6a5f\u3059\u308b<\/li>\n\n\n\n<li>\u518d\u3073\u96fb\u6e90\u3092\u5165\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u518d\u8d77\u52d5\u306e\u983b\u5ea6\u306f\u9031\u306b1\u56de\u7a0b\u5ea6\u304c\u76ee\u5b89\u3067\u3059\u304c\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u6a5f\u7a2e\u3084\u5229\u7528\u74b0\u5883\u306b\u5fdc\u3058\u3066\u8abf\u6574\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001\u30e1\u30fc\u30ab\u30fc\u304c\u63a8\u5968\u3059\u308b\u518d\u8d77\u52d5\u983b\u5ea6\u3092\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u5bfe\u7b56\u306b\u3088\u308aDNS\u30a8\u30e9\u30fc\u3092\u672a\u7136\u306b\u9632\u304e\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS\u8a2d\u5b9a\u306e\u5b9a\u671f\u7684\u306a\u898b\u76f4\u3057<\/h3>\n\n\n\n<p>\u8a2d\u5b9a\u3057\u3066\u3044\u308bDNS\u30b5\u30fc\u30d0\u30fc\u304c\u5b89\u5b9a\u3057\u3066\u52d5\u4f5c\u3057\u3066\u3044\u308b\u304b\u3001\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u306fDNS\u30a8\u30e9\u30fc\u306e\u4e88\u9632\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u7279\u306b\u30d1\u30d6\u30ea\u30c3\u30afDNS\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u6700\u65b0\u60c5\u5831\u3092\u30c1\u30a7\u30c3\u30af\u3057\u8a2d\u5b9a\u3092\u66f4\u65b0\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>DNS\u30b5\u30fc\u30d0\u30fc\u306f\u969c\u5bb3\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306a\u3069\u306b\u3088\u308a\u4e00\u6642\u7684\u306b\u5229\u7528\u3067\u304d\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u6b21\u306e\u70b9\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-gray-background-color has-background\">\n<li>\u73fe\u5728\u8a2d\u5b9a\u3057\u3066\u3044\u308bDNS\u30b5\u30fc\u30d0\u30fc\u304c\u7a3c\u50cd\u3057\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u30d7\u30ed\u30d0\u30a4\u30c0\u304c\u63d0\u4f9b\u3059\u308bDNS\u30b5\u30fc\u30d0\u30fc\u306e\u60c5\u5831\u306b\u5909\u66f4\u304c\u306a\u3044\u304b<\/li>\n\n\n\n<li>\u30d1\u30d6\u30ea\u30c3\u30afDNS\uff08\u4f8b\uff1aGoogle Public DNS\u3001Cloudflare\uff09\u306e\u6700\u65b0\u60c5\u5831\u3084\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u66f4\u304c\u306a\u3044\u304b<\/li>\n<\/ul>\n\n\n\n<p>\u5b9a\u671f\u7684\u306a\u898b\u76f4\u3057\u3092\u884c\u3046\u3053\u3068\u3067DNS\u30a8\u30e9\u30fc\u306e\u4e88\u9632\u3060\u3051\u3067\u306a\u304f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u306e\u8efd\u6e1b\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30d0\u30a4\u30b9\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u6700\u65b0\u306b\u4fdd\u3064<\/h3>\n\n\n\n<p>OS\u3084\u30d6\u30e9\u30a6\u30b6\u3001\u305d\u306e\u4ed6\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306f\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3092\u6e1b\u3089\u3059\u3060\u3051\u3067\u306a\u304f\u3001NS\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3068\u306a\u308b\u30d0\u30b0\u304c\u4fee\u6b63\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001OS\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u306f\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list has-swl-pale-02-background-color has-background\">\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8106\u5f31\u6027\u306e\u4fee\u6b63<\/li>\n\n\n\n<li>\u30d0\u30b0\u306e\u4fee\u6b63\u306b\u3088\u308b\u5b89\u5b9a\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>DNS\u95a2\u9023\u306e\u6a5f\u80fd\u6539\u5584<\/li>\n<\/ul>\n\n\n\n<p>OS\u3084\u30d6\u30e9\u30a6\u30b6\u3092\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u5229\u70b9\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3082\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u4fdd\u3064\u3053\u3068\u3067\u3001\u3055\u3089\u306a\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5411\u4e0a\u3068\u5b89\u5b9a\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306f\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3057\u5fd8\u308c\u305a\u306b\u884c\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u5229\u7528\u3059\u308b\u3046\u3048\u3067\u907f\u3051\u3089\u308c\u306a\u3044\u554f\u984c\u306e\u4e00\u3064\u3067\u3059\u304c\u3001\u305d\u306e\u591a\u304f\u306f\u9069\u5207\u306a\u5bfe\u51e6\u6cd5\u3067\u89e3\u6c7a\u53ef\u80fd\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306fDNS\u30a8\u30e9\u30fc\u306e\u4ed5\u7d44\u307f\u3084\u539f\u56e0\u3092\u89e3\u8aac\u3057\u3001\u518d\u8d77\u52d5\u3084DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2\u3001\u30d1\u30d6\u30ea\u30c3\u30afDNS\u306e\u5229\u7528\u3068\u3044\u3063\u305f\u5177\u4f53\u7684\u306a\u89e3\u6c7a\u7b56\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u6700\u65b0\u306b\u4fdd\u3064\u3053\u3068\u3084\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u5b9a\u671f\u7684\u306a\u518d\u8d77\u52d5\u3068\u3044\u3063\u305f\u4e88\u9632\u7b56\u3082DNS\u30a8\u30e9\u30fc\u3092\u9632\u3050\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>DNS\u30a8\u30e9\u30fc\u306b\u906d\u9047\u3057\u3066\u3082\u614c\u3066\u305a\u3001\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u3092\u53c2\u8003\u306b\u539f\u56e0\u3092\u7279\u5b9a\u3057\u9069\u5207\u306b\u5bfe\u51e6\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u74b0\u5883\u3092\u5b89\u5b9a\u3055\u305b\u308b\u3053\u3068\u3067\u30b9\u30e0\u30fc\u30ba\u306a\u30aa\u30f3\u30e9\u30a4\u30f3\u6d3b\u52d5\u3092\u697d\u3057\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4eca\u5f8c\u3082DNS\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u95a2\u3059\u308b\u77e5\u8b58\u3092\u6df1\u3081\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5feb\u9069\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5229\u7528\u3092\u76ee\u6307\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure 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