{"id":27891,"date":"2024-08-07T01:34:05","date_gmt":"2024-08-07T06:34:05","guid":{"rendered":"https:\/\/www.dotcom-monitor.com\/%e3%83%89%e3%83%83%e3%83%88%e3%82%b3%e3%83%a0%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%bc%e3%81%a7%e5%ad%a6%e3%81%b6\/%e7%94%a8%e8%aa%9e%e9%9b%86\/dns%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a8%e3%81%af%ef%bc%9f\/"},"modified":"2026-06-01T20:52:26","modified_gmt":"2026-06-02T01:52:26","slug":"dns%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a8%e3%81%af%ef%bc%9f","status":"publish","type":"page","link":"https:\/\/www.dotcom-monitor.com\/ja\/%e3%83%89%e3%83%83%e3%83%88%e3%82%b3%e3%83%a0%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%bc%e3%81%a7%e5%ad%a6%e3%81%b6\/%e7%94%a8%e8%aa%9e%e9%9b%86\/dns%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a8%e3%81%af%ef%bc%9f\/","title":{"rendered":"DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"27891\" class=\"elementor elementor-27891 elementor-26843\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f1ef870 e-flex e-con-boxed e-con e-parent\" data-id=\"f1ef870\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fb12444 elementor-mobile-align-center elementor-align-center elementor-widget elementor-widget-breadcrumbs\" data-id=\"fb12444\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span><span class=\"last\">Home<\/span><\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-86c6f8d elementor-widget elementor-widget-heading\" data-id=\"86c6f8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 id='dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\u4f55\u3067\u3059\u304b'  id=\"boomdevs_1\" class=\"elementor-heading-title elementor-size-default\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ef81331 e-flex e-con-boxed e-con e-parent\" data-id=\"ef81331\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-f58b6ed e-con-full e-flex e-con e-child\" data-id=\"f58b6ed\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e8cb898 elementor-widget elementor-widget-text-editor\" data-id=\"e8cb898\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u6700\u7d42\u66f4\u65b0\u65e5\uff1a2026\u5e742\u67085\u65e5<\/p><h2 id='dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\u4f55\u3067\u3059\u304b-1'  id=\"boomdevs_2\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2><p>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u30b7\u30b9\u30c6\u30e0\uff08DNS\uff09\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u5065\u5eb7\u72b6\u614b\u3092\u7d99\u7d9a\u7684\u306b\u8ffd\u8de1\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002DNS\u306f\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\u57fa\u672c\u7684\u306b\u3001DNS\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u96fb\u8a71\u5e33\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30a6\u30a7\u30d6\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u305f\u969b\u306b\u6b63\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u306b\u6848\u5185\u3057\u307e\u3059\u3002DNS\u3092\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u5909\u63db\u304c\u8fc5\u901f\u304b\u3064\u6b63\u78ba\u306b\u884c\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u4e2d\u65ad\u306a\u304f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p><h3 id='\u306a\u305cdns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u304c\u91cd\u8981\u306a\u306e\u304b'  id=\"boomdevs_3\">\u306a\u305cDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u304c\u91cd\u8981\u306a\u306e\u304b\uff1f<\/h3><p>DNS\u306f\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30a4\u30f3\u30d5\u30e9\u306e\u91cd\u8981\u306a\u90e8\u5206\u3067\u3042\u308a\u3001DNS\u304c\u6545\u969c\u3059\u308b\u3068\u4ed6\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u3066\u3082\u30e6\u30fc\u30b6\u30fc\u306f\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u6a19\u6e96\u7684\u306a\u904b\u7528\u4f5c\u696d\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u9045\u5ef6\u306e\u3042\u308b\u89e3\u6c7a\u6642\u9593\u3001\u8aa4\u8a2d\u5b9a\u3001DNS\u653b\u6483\uff08\u4f8b\u3048\u3070DDoS\uff09\u306a\u3069\u3001\u30b5\u30a4\u30c8\u306e\u53ef\u7528\u6027\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u554f\u984c\u3092\u691c\u51fa\u3057\u89e3\u6c7a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><p>\u7a4d\u6975\u7684\u306aDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u5e38\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u9ad8\u901f\u306b\u8aad\u307f\u8fbc\u307e\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u4e3b\u306a\u76ee\u7684\u306f\u3001\u4e00\u8cab\u6027\u3068\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u78ba\u4fdd\u3057\u3001DNS\u95a2\u9023\u306e\u8105\u5a01\u304b\u3089\u30b5\u30a4\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p><h3 id='\u53ef\u7528\u6027\u306e\u78ba\u4fdd'  id=\"boomdevs_4\">\u53ef\u7528\u6027\u306e\u78ba\u4fdd<\/h3><p>DNS\u306f\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002DNS\u304c\u6545\u969c\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u306f<a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/website-monitoring\/\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8<\/a>\u3084<a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/what-is-web-application-monitoring\/\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/a>\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u305a\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3084\u5927\u304d\u306a\u30d3\u30b8\u30cd\u30b9\u640d\u5931\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306b\u3088\u308a\u3001\u969c\u5bb3\u306a\u3069\u306e\u4e2d\u65ad\u304c\u691c\u51fa\u3055\u308c\u8fc5\u901f\u306b\u89e3\u6c7a\u3055\u308c\u308b\u305f\u3081\u3001\u9ad8\u3044\u7a3c\u50cd\u7387\u304c\u7dad\u6301\u3055\u308c\u307e\u3059\u3002<\/p><h3 id='\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3'  id=\"boomdevs_5\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/h3><p>DNS\u306f\u3055\u307e\u3056\u307e\u306a\u30bf\u30a4\u30d7\u306e\u653b\u6483\u306e\u983b\u7e41\u306a\u30bf\u30fc\u30b2\u30c3\u30c8\u3067\u3059\u3002DDoS\u306e\u3088\u3046\u306a\u30dc\u30ea\u30e5\u30e1\u30c8\u30ea\u30c3\u30af\u653b\u6483\u306f\u3001\u6a29\u5a01DNS\u30b5\u30fc\u30d0\u30fc\u3084\u30ea\u30ab\u30fc\u30b7\u30d6DNS\u30b5\u30fc\u30d0\u30fc\u3092\u5727\u5012\u3057\u3001\u5229\u7528\u4e0d\u80fd\u306b\u3057\u307e\u3059\u3002DNS\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30dd\u30a4\u30ba\u30cb\u30f3\u30b0\u3001DNS\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u306a\u3069\u4ed6\u306e\u653b\u6483\u306f\u3001\u89e3\u6c7a\u30d7\u30ed\u30bb\u30b9\u3092\u64cd\u4f5c\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u3092\u60aa\u610f\u306e\u3042\u308b\u30b5\u30a4\u30c8\u306b\u8a98\u5c0e\u3057\u305f\u308a\u3001\u6a5f\u5bc6\u60c5\u5831\u3092\u76d7\u3093\u3060\u308a\u3001\u30b5\u30fc\u30d3\u30b9\u30a2\u30af\u30bb\u30b9\u3092\u59a8\u5bb3\u3057\u305f\u308a\u3057\u307e\u3059\u3002\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u3053\u308c\u3089\u306e\u8105\u5a01\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u7279\u5b9a\u3057\u8efd\u6e1b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p><h3 id='\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316'  id=\"boomdevs_6\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/h3><p>DNS\u89e3\u6c7a\u304c\u9045\u3044\u3068\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u304c\u60aa\u5316\u3057\u307e\u3059\u3002<a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/dns-performance\/\">DNS\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/a>\u306e\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a\u3068\u89e3\u6c7a\u30d7\u30ed\u30bb\u30b9\u306e\u6700\u9069\u5316\u306b\u5f79\u7acb\u3061\u3001\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u901f\u304f\u3057\u307e\u3059\u3002DNS\u30b5\u30fc\u30d0\u30fc\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u5e38\u306b\u76e3\u8996\u304c\u5fc5\u8981\u306a\u91cd\u8981\u306a\u5074\u9762\u3067\u3059\u3002<\/p><h3 id='\u4e00\u822c\u7684\u306adns\u554f\u984c'  id=\"boomdevs_7\">\u4e00\u822c\u7684\u306aDNS\u554f\u984c<\/h3><ol><li><strong>DNS\u30b5\u30fc\u30d0\u30fc\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\uff1a<\/strong>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u969c\u5bb3\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u554f\u984c\u3001\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u304c\u539f\u56e0\u3068\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li><li><strong>\u4f1d\u64ad\u9045\u5ef6\uff1a<\/strong>DNS\u306e\u5909\u66f4\u306f\u30eb\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3084\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3092\u542b\u3081\u3001\u4e16\u754c\u4e2d\u306e\u3059\u3079\u3066\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u4f1d\u64ad\u3059\u308b\u307e\u3067\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li><li><strong>DNS\u8a2d\u5b9a\u30a8\u30e9\u30fc\uff1a<\/strong>\u8aa4\u3063\u305fDNS\u8a2d\u5b9a\u306f\u89e3\u6c7a\u5931\u6557\u3092\u62db\u304d\u307e\u3059\u3002A\u30ec\u30b3\u30fc\u30c9\u3001CNAME\u30ec\u30b3\u30fc\u30c9\u3001MX\u30ec\u30b3\u30fc\u30c9\u3001TXT\u30ec\u30b3\u30fc\u30c9\u306a\u3069\u306e\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u306e\u8aa4\u8a2d\u5b9a\u306f\u5927\u304d\u306a\u969c\u5bb3\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002<\/li><li><strong>\u9ad8\u9045\u5ef6\uff1a<\/strong>DNS\u5fdc\u7b54\u6642\u9593\u306e\u9045\u5ef6\u306f\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306e\u8cea\u3092\u4e0b\u3052\u308b\u305f\u3081\u3001<a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/website-performance\/\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u304c\u91cd\u8981\u3067\u3059\u3002<\/li><\/ol><h2 id='dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3067\u6e2c\u5b9a\u3059\u3079\u304d\u3053\u3068'  id=\"boomdevs_8\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3067\u6e2c\u5b9a\u3059\u3079\u304d\u3053\u3068<\/h2><p>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u5358\u306b\u300cDNS\u304c\u7a3c\u50cd\u3057\u3066\u3044\u308b\u304b\uff1f\u300d\u3067\u306f\u306a\u304f\u3001\u6b63\u3057\u3044\u5fdc\u7b54\u3001\u8fc5\u901f\u306a\u89e3\u6c7a\u3001\u5b89\u5168\u3067\u4e88\u671f\u3055\u308c\u305f\u52d5\u4f5c\u3092\u5834\u6240\u3084\u30ea\u30be\u30eb\u30d0\u3054\u3068\u306b\u691c\u8a3c\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u8ffd\u8de1\u3059\u3079\u304d\u4e3b\u8981\u306a\u6e2c\u5b9a\u30ab\u30c6\u30b4\u30ea\u3067\u3059\u3002<\/p><h3 id='1-\u53ef\u7528\u6027\u3068\u6b63\u78ba\u6027'  id=\"boomdevs_9\">1. \u53ef\u7528\u6027\u3068\u6b63\u78ba\u6027<\/h3><p>\u3053\u308c\u3089\u306e\u30c1\u30a7\u30c3\u30af\u306fDNS\u304c\u5fdc\u7b54\u3057\u6b63\u3057\u3044\u30ec\u30b3\u30fc\u30c9\u3092\u8fd4\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p><ul><li>\u30af\u30a8\u30ea\u6210\u529f\u7387\uff08\u30a2\u30c3\u30d7\u30bf\u30a4\u30e0\uff09\uff1a\u6709\u52b9\u306a\u5fdc\u7b54\uff08\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u3067\u306f\u306a\u3044\uff09\u304c\u8fd4\u308bDNS\u30af\u30a8\u30ea\u306e\u5272\u5408\u3002<\/li><li>\u6b63\u3057\u3044\u30ec\u30b3\u30fc\u30c9\u5fdc\u7b54\uff1a\u91cd\u8981\u306a\u30ec\u30b3\u30fc\u30c9\u304c\u671f\u5f85\u3055\u308c\u308b\u5024\u306b\u89e3\u6c7a\u3055\u308c\u308b\u3053\u3068\u3092\u691c\u8a3c\uff1a<ul><li>A\/AAAA \u2192 \u6b63\u3057\u3044IP\uff08IPv6\u542b\u3080\uff09<\/li><li>CNAME \u2192 \u6b63\u3057\u3044\u6b63\u898f\u30bf\u30fc\u30b2\u30c3\u30c8<\/li><li>MX \u2192 \u6b63\u3057\u3044\u30e1\u30fc\u30eb\u30a8\u30af\u30b9\u30c1\u30a7\u30f3\u30b8\u30e3\u30fc\u3068\u512a\u5148\u9806\u4f4d<\/li><li>TXT \u2192 \u6b63\u3057\u3044SPF\/DKIM\/\u691c\u8a3c\u6587\u5b57\u5217<\/li><\/ul><\/li><li>NXDOMAIN\u7387\uff08\u4e88\u671f\u305b\u306c\u3082\u306e\uff09\uff1a\u6025\u5897\u306f\u30ec\u30b3\u30fc\u30c9\u6b20\u843d\u3001\u30bf\u30a4\u30d7\u30df\u30b9\u3001\u8aa4\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30ea\u30be\u30eb\u30d0\u554f\u984c\u3092\u793a\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li><li>SERVFAIL\/REFUSED\u7387\uff1a\u591a\u304f\u306e\u5834\u5408\u3001\u6a29\u5a01DNS\u554f\u984c\u3001\u8aa4\u8a2d\u5b9a\u3001DNSSEC\u554f\u984c\u3001\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u30eb\u30fc\u30eb\u3092\u793a\u3057\u307e\u3059\u3002<\/li><li>DNS\u5fdc\u7b54\u306e\u4e00\u8cab\u6027\uff1a\u8907\u6570\u306e\u30ea\u30be\u30eb\u30d0\uff0f\u5730\u57df\u9593\u3067\u306e\u5fdc\u7b54\u3092\u6bd4\u8f03\u3057\u3001\u5206\u65ad\u3055\u308c\u305fDNS\u3001\u90e8\u5206\u7684\u4f1d\u64ad\u3001\u5730\u7406\u7684\uff0fDNS\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u7570\u5e38\u3092\u691c\u51fa\u3002<\/li><\/ul><h3 id='2-\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u9045\u5ef6-\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13'  id=\"boomdevs_10\">2. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u9045\u5ef6\uff08\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\uff09<\/h3><p>DNS\u9045\u5ef6\u306f\u30b5\u30a4\u30c8\u306e\u4f53\u611f\u901f\u5ea6\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u3001\u7279\u306b\u521d\u56de\u8a2a\u554f\u6642\u306b\u9855\u8457\u3067\u3059\u3002<\/p><ul><li>DNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u6642\u9593\uff08\u89e3\u6c7a\u6642\u9593\uff09\uff1a\u5e73\u5747DNS\u89e3\u6c7a\u6642\u9593\uff08p50\uff09\u3092\u8ffd\u8de1\u3059\u308b\u306e\u306f\u6709\u76ca\u3067\u3059\u304c\u3001\u30c6\u30a4\u30eb\u9045\u5ef6\uff08p95\u3001p99\uff09\u306e\u65b9\u304c\u91cd\u8981\u3067\u3059\u3002p95\u304c\u91cd\u8981\u30c9\u30e1\u30a4\u30f3\u3067\u7d04100ms\u3092\u8d85\u3048\u308b\u3068\u591a\u304f\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u611f\u899a\u3055\u308c\u307e\u3059\u3002p99\u306e\u6025\u4e0a\u6607\u306f\u5730\u57df\u7684\u6df7\u96d1\u3084\u65b0\u305f\u306aDDoS\u306e\u5146\u5019\u3092\u793a\u3057\u307e\u3059\u3002<\/li><li>DNS\u5fdc\u7b54\u306e\u521d\u30d0\u30a4\u30c8\u5230\u7740\u6642\u9593\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u8def\u554f\u984c\u3084DNS\u30a4\u30f3\u30d5\u30e9\u904e\u8ca0\u8377\u306e\u7279\u5b9a\u306b\u6709\u7528\u3002<\/li><li>\u30ea\u30ab\u30fc\u30b7\u30d6\u3068\u6a29\u5a01DNS\u306e\u30bf\u30a4\u30df\u30f3\u30b0\uff08\u30c4\u30fc\u30eb\u304c\u5bfe\u5fdc\u3057\u3066\u3044\u308c\u3070\uff09\uff1a\u9045\u5ef6\u306e\u539f\u56e0\u304c<ul><li>\u30ea\u30ab\u30fc\u30b7\u30d6\u30ea\u30be\u30eb\u30d0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/li><li>\u6a29\u5a01DNS\u3084\u30d7\u30ed\u30d0\u30a4\u30c0<\/li><li>\u7279\u5b9a\u5730\u57df\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u72b6\u6cc1<\/li><\/ul>\u306e\u3044\u305a\u308c\u304b\u304b\u3092\u7279\u5b9a\u3002<\/li><li>\u5730\u57df\u3054\u3068\u306e\u9045\u5ef6\u5909\u52d5\uff1a\u5317\u7c73\uff0f\u6b27\u5dde\uff0f\u30a2\u30b8\u30a2\u592a\u5e73\u6d0b\u306a\u3069\u8907\u6570\u306e\u5834\u6240\u304b\u3089\u6e2c\u5b9a\u3057\u3001\u5730\u57df\u5dee\u3092\u628a\u63e1\u3002<\/li><\/ul><h3 id='3-dns\u4f1d\u64ad\u3068\u5909\u66f4\u691c\u8a3c'  id=\"boomdevs_11\">3. DNS\u4f1d\u64ad\u3068\u5909\u66f4\u691c\u8a3c<\/h3><p>DNS\u5909\u66f4\u306f\u969c\u5bb3\u306e\u4e00\u822c\u7684\u306a\u539f\u56e0\u3067\u3059\u3002\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u5909\u66f4\u304c\u671f\u5f85\u901a\u308a\u306b\u5c55\u958b\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p><ul><li>\u5730\u57df\uff0f\u30ea\u30be\u30eb\u30d0\u9593\u306e\u4f1d\u64ad\u72b6\u6cc1\uff1a\u65b0\u3057\u3044\u30ec\u30b3\u30fc\u30c9\u304c\u30b0\u30ed\u30fc\u30d0\u30eb\uff08\u307e\u305f\u306f\u5bfe\u8c61\u5730\u57df\uff09\u3067\u898b\u3048\u308b\u304b\u78ba\u8a8d\u3002<\/li><li>TTL\u306e\u6319\u52d5\uff1a\u610f\u56f3\u3057\u305fTTL\u8a2d\u5b9a\u3068\u30ea\u30be\u30eb\u30d0\u304c\u305d\u308c\u3092\u5c0a\u91cd\u3057\u3066\u3044\u308b\u304b\uff08\u79fb\u884c\u6642\u306b\u7279\u306b\u91cd\u8981\uff09\u3092\u8ffd\u8de1\u3002<\/li><li>\u91cd\u8981\u30be\u30fc\u30f3\uff0f\u30ec\u30b3\u30fc\u30c9\u306e\u5909\u66f4\u691c\u51fa\uff1aA\/AAAA\/CNAME\/MX\/TXT\/NS\u30ec\u30b3\u30fc\u30c9\u306e\u4e88\u671f\u305b\u306c\u5909\u66f4\u306b\u30a2\u30e9\u30fc\u30c8\uff08\u8aa4\u7de8\u96c6\u3084\u4fb5\u5bb3\u3092\u691c\u77e5\uff09\u3002<\/li><\/ul><h3 id='4-\u6a29\u5a01dns\u306e\u5065\u5168\u6027-\u30d7\u30ed\u30d0\u30a4\u30c0-\u30a4\u30f3\u30d5\u30e9\u4fe1\u53f7'  id=\"boomdevs_12\">4. \u6a29\u5a01DNS\u306e\u5065\u5168\u6027\uff08\u30d7\u30ed\u30d0\u30a4\u30c0\uff0f\u30a4\u30f3\u30d5\u30e9\u4fe1\u53f7\uff09<\/h3><p>\u72ec\u81ea\u306e\u6a29\u5a01DNS\u3092\u904b\u7528\u3059\u308b\u5834\u5408\u3084\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u8cac\u4efb\u3092\u6df1\u304f\u76e3\u8996\u3057\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u3092\u8ffd\u8de1\uff1a<\/p><ul><li>\u6a29\u5a01\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306e\u5230\u9054\u6027\uff1a\u3059\u3079\u3066\u306eNS\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u5fdc\u7b54\u3057\u3066\u3044\u308b\u304b\uff1f<\/li><li>SOA\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\uff1aSOA\u30b7\u30ea\u30a2\u30eb\u756a\u53f7\u3068\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\uff0f\u30ea\u30c8\u30e9\u30a4\u8a2d\u5b9a\u3092\u76e3\u8996\u3057\u3001\u66f4\u65b0\u5931\u6557\u3084\u30be\u30fc\u30f3\u516c\u958b\u554f\u984c\u3092\u691c\u51fa\u3002<\/li><li>\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3054\u3068\u306eDNS\u5fdc\u7b54\u30b3\u30fc\u30c9\uff1a1\u3064\u306eNS\u6545\u969c\u3067\u3082\u30ea\u30be\u30eb\u30d0\u306e\u6319\u52d5\u306b\u3088\u308a\u65ad\u7d9a\u7684\u306a\u969c\u5bb3\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308b\u3002<\/li><\/ul><h3 id='5-\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fe1\u53f7-\u65e9\u671f\u8b66\u544a\u6307\u6a19'  id=\"boomdevs_13\">5. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fe1\u53f7\uff08\u65e9\u671f\u8b66\u544a\u6307\u6a19\uff09<\/h3><p>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u5358\u72ec\u3067\u5168\u3066\u306e\u653b\u6483\u3092\u9632\u3050\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u4e0d\u5be9\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u8fc5\u901f\u306b\u691c\u51fa\u53ef\u80fd\u3067\u3059\u3002<\/p><ul><li>\u7a81\u7136\u306e\u5fdc\u7b54\u6642\u9593\u6025\u5897\uff1aDNS DDoS\u3001\u4e0a\u6d41\u6df7\u96d1\u3001\u30ea\u30be\u30eb\u30d0\u904e\u8ca0\u8377\u3068\u95a2\u9023\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3002<\/li><li>\u4e88\u671f\u305b\u306c\u30ec\u30b3\u30fc\u30c9\u5909\u66f4\uff1aDNS\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u3001\u767b\u9332\u696d\u8005\uff0fDNS\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u4fb5\u5bb3\u3001\u5185\u90e8\u8aa4\u8a2d\u5b9a\u306e\u53ef\u80fd\u6027\u3002<\/li><li>\u7570\u5e38\u306a\u30af\u30a8\u30ea\u91cf\u30d1\u30bf\u30fc\u30f3\uff08\u30ed\u30b0\uff0f\u5206\u6790\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u3042\u308b\u5834\u5408\uff09\uff1a\u7279\u5b9a\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3084\u30af\u30a8\u30ea\u30bf\u30a4\u30d7\u306e\u6025\u5897\u306f\u60aa\u7528\u306e\u5146\u5019\u3002<\/li><li>DNSSEC\u691c\u8a3c\u72b6\u6cc1\uff08DNSSEC\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\uff09\uff1a\u691c\u8a3c\u5931\u6557\u3092\u76e3\u8996\u3057\u3001\u691c\u8a3c\u30ea\u30be\u30eb\u30d0\u306e\u89e3\u6c7a\u4e0d\u80fd\u3092\u9632\u3050\u3002<\/li><\/ul><h3 id='6-\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30ab\u30d0\u30ec\u30c3\u30b8-\u6b7b\u89d2\u56de\u907f'  id=\"boomdevs_14\">6. \u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30ab\u30d0\u30ec\u30c3\u30b8\uff08\u6b7b\u89d2\u56de\u907f\uff09<\/h3><p>\u30e1\u30c8\u30ea\u30af\u30b9\u306f\u30c1\u30a7\u30c3\u30af\u5185\u5bb9\u304c\u5b9f\u969b\u306e\u6319\u52d5\u3092\u53cd\u6620\u3057\u3066\u3053\u305d\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p><ul><li>\u30de\u30eb\u30c1\u30ea\u30be\u30eb\u30d0\u30ab\u30d0\u30ec\u30c3\u30b8\uff1a\u53ef\u80fd\u306a\u9650\u308a\u4e00\u822c\u7684\u306a\u30d1\u30d6\u30ea\u30c3\u30af\u30ea\u30be\u30eb\u30d0\uff0bISP\u30ea\u30be\u30eb\u30d0\u306b\u5bfe\u3057\u3066\u30c6\u30b9\u30c8\u3002<\/li><li>\u30de\u30eb\u30c1\u30ea\u30fc\u30b8\u30e7\u30f3\u30d7\u30ed\u30fc\u30d6\uff1a\u5bfe\u8c61\u8996\u8074\u8005\u3084\u91cd\u8981\u5e02\u5834\u306b\u5408\u308f\u305b\u305f\u5834\u6240\u304b\u3089\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u65bd\u3002<\/li><li>\u30c1\u30a7\u30c3\u30af\u983b\u5ea6\u3068\u30a2\u30e9\u30fc\u30c8\u95be\u5024\uff1a\u4f8b\u3048\u3070p95\u306e\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u6642\u9593\u304cX ms\u8d85\u3001SERVFAIL\u304cY%\u8d85\u3001\u91cd\u8981\u30ec\u30b3\u30fc\u30c9\u6b20\u843d\u5373\u6642\u91cd\u5927\u306a\u3069\u3001\u300c\u60aa\u3044\u300d\u72b6\u614b\u306e\u5b9a\u7fa9\u3092\u8a2d\u5b9a\u3002<\/li><\/ul><h2 id='\u4e00\u822c\u7684\u306adns\u969c\u5bb3'  id=\"boomdevs_15\">\u4e00\u822c\u7684\u306aDNS\u969c\u5bb3<\/h2><p>DNS\u969c\u5bb3\u306f\u901a\u5e38\u3001\u53ef\u7528\u6027\uff08\u89e3\u6c7a\u4e0d\u80fd\uff09\u3001\u6b63\u78ba\u6027\uff08\u9593\u9055\u3063\u305f\u5fdc\u7b54\uff09\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff08\u9045\u3044\u89e3\u6c7a\uff09\u306e3\u3064\u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u8868\u306f\u4e00\u822c\u7684\u306a\u75c7\u72b6\u3068\u305d\u306e\u53ef\u80fd\u6027\u306e\u3042\u308b\u539f\u56e0\u3001\u8fc5\u901f\u306a\u691c\u8a3c\u30b9\u30c6\u30c3\u30d7\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be27c50 elementor-widget elementor-widget-jet-table\" data-id=\"be27c50\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"jet-table.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-jet-table jet-elements\">\n\t\t<div class=\"jet-table-wrapper\">\n\t\t\t<table class=\"jet-table jet-table--fa5-compat\">\n\t\t\t\t<thead class=\"jet-table__head\"><tr class=\"jet-table__head-row\"><th class=\"jet-table__cell elementor-repeater-item-bb55edb jet-table__head-cell\" scope=\"col\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u75c7\u72b6<\/div><\/div><\/div><\/th><th class=\"jet-table__cell elementor-repeater-item-7ffa10d jet-table__head-cell\" scope=\"col\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u8003\u3048\u3089\u308c\u308b\u539f\u56e0<\/div><\/div><\/div><\/th><th class=\"jet-table__cell elementor-repeater-item-e98ef50 jet-table__head-cell\" scope=\"col\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5b9f\u884c\u3059\u3079\u304d\u30c1\u30a7\u30c3\u30af<\/div><\/div><\/div><\/th><\/tr><\/thead>\n\t\t\t\t\t\t\t\t<tbody class=\"jet-table__body\"><tr class=\"jet-table__body-row elementor-repeater-item-0552e7a\"><td class=\"jet-table__cell elementor-repeater-item-97d6b0a jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u30c9\u30e1\u30a4\u30f3\uff0f\u30db\u30b9\u30c8\u540d\u304c\u5168\u304f\u89e3\u6c7a\u3057\u306a\u3044\uff08\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\uff09<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-e72ca4b jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u6a29\u5a01DNS\u969c\u5bb3\u3001UDP\uff0fTCP 53\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30d6\u30ed\u30c3\u30af\u3001DDoS\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u969c\u5bb3<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-a4c2842 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5404\u6a29\u5a01\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\uff08NS\uff09\u306b\u76f4\u63a5\u30af\u30a8\u30ea\u3092\u9001\u308b\uff1bUDP\u3068TCP\u3092\u30c6\u30b9\u30c8\uff1bDNS\u30d7\u30ed\u30d0\u30a4\u30c0\u72b6\u6cc1\u3092\u78ba\u8a8d\uff1b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30ec\u30fc\u30c8\u5236\u9650\u3092\u691c\u8a3c<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-0758e86\"><td class=\"jet-table__cell elementor-repeater-item-1017ced jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u65ad\u7d9a\u7684\u306a\u969c\u5bb3\uff08\u6642\u3005\u52d5\u4f5c\u3057\u3001\u6642\u3005\u5931\u6557\u3059\u308b\uff09<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-b39ed6a jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">1\u3064\u306eNS\u30c0\u30a6\u30f3\u3001\u4e0d\u6574\u5408\u306a\u30be\u30fc\u30f3\u30c7\u30fc\u30bf\u3001\u4e0d\u5b89\u5b9a\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u8def\u3001\u30ec\u30fc\u30c8\u5236\u9650<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-153d93e jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5404NS\u306b\u7e70\u308a\u8fd4\u3057\u30af\u30a8\u30ea\uff1b\u5fdc\u7b54\u6bd4\u8f03\uff1b\u5730\u57df\u3054\u3068\u306eNS\u306e\u5065\u5168\u6027\u3084\u9045\u5ef6\u3092\u30c1\u30a7\u30c3\u30af\uff1b\u30ec\u30fc\u30c8\u5236\u9650\u8a2d\u5b9a\u306e\u898b\u76f4\u3057<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-c856c15\"><td class=\"jet-table__cell elementor-repeater-item-abe23a5 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u30ea\u30be\u30eb\u30d0\u304b\u3089\u306eSERVFAIL<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-1eaa247 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">DNSSEC\u691c\u8a3c\u5931\u6557\u3001\u58ca\u308c\u305f\u30be\u30fc\u30f3\u3001\u30ec\u30a4\u30e0\u30c7\u30ea\u30b2\u30fc\u30b7\u30e7\u30f3\u3001\u4e0a\u6d41\u30ea\u30be\u30eb\u30d0\u554f\u984c<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-47c6444 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u8907\u6570\u306e\u30ea\u30be\u30eb\u30d0\u3092\u30c6\u30b9\u30c8\uff1b\u6a29\u5a01NS\u306b\u30af\u30a8\u30ea\uff1bDNSSEC\u30c1\u30a7\u30fc\u30f3\uff08DS\/DNSKEY\/\u7f72\u540d\uff09\u3092\u691c\u8a3c\uff1b\u6b63\u3057\u3044\u59d4\u4efb\u3092\u78ba\u8a8d<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-358adc0\"><td class=\"jet-table__cell elementor-repeater-item-1b90ab0 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5b58\u5728\u3059\u3079\u304d\u30db\u30b9\u30c8\u540d\u306eNXDOMAIN<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-e6598ee jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u30ec\u30b3\u30fc\u30c9\u6b20\u5982\u3001\u8aa4\u3063\u305f\u30be\u30fc\u30f3\u30fb\u30d7\u30ed\u30d0\u30a4\u30c0\u3001\u30bf\u30a4\u30d7\u30df\u30b9\u3001\u30b9\u30d7\u30ea\u30c3\u30c8\u30db\u30e9\u30a4\u30ba\u30f3DNS\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u6df7\u4e71<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-ed6348c jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u6b63\u78ba\u306a\u30db\u30b9\u30c8\u540d\u306e\u6a29\u5a01NS\u306b\u30af\u30a8\u30ea\uff1b\u6b63\u3057\u3044\u30be\u30fc\u30f3\u5185\u306b\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3059\u308b\u304b\u78ba\u8a8d\uff1b\u30b9\u30d7\u30ea\u30c3\u30c8\u30db\u30e9\u30a4\u30ba\u30f3\u3092\u30c1\u30a7\u30c3\u30af\uff1b\u30b9\u30da\u30eb\u3092\u691c\u8a3c<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-8f55b37\"><td class=\"jet-table__cell elementor-repeater-item-3e31d3b jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u89e3\u6c7a\u306f\u3059\u308b\u304c\u8aa4\u3063\u305fIP\uff0f\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u89e3\u6c7a<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-727139c jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u8aa4\u3063\u305fA\/AAAA\/CNAME\u3001\u53e4\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u3001CDN\uff0f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u30c6\u30a3\u30a2\u30ea\u30f3\u30b0\u8aa4\u8a2d\u5b9a\u3001\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\uff0f\u4e0d\u6b63\u5909\u66f4<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-6d84336 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5730\u57df\u3084\u30ea\u30be\u30eb\u30d0\u3067\u6bd4\u8f03\uff1b\u6a29\u5a01\u5fdc\u7b54\u3092\u78ba\u8a8d\uff1b\u6700\u8fd1\u306eDNS\u5909\u66f4\u3092\u30ec\u30d3\u30e5\u30fc\uff1b\u767b\u9332\u696d\u8005\u3084NS\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-d94a03e\"><td class=\"jet-table__cell elementor-repeater-item-5629d5d jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">DNS\u306f\u300c\u7a3c\u50cd\u4e2d\u300d\u3060\u304c\u975e\u5e38\u306b\u9045\u3044\uff08\u9ad8\u3044\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u6642\u9593\uff09<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-b6e20e9 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u30ea\u30be\u30eb\u30d0\u904e\u8ca0\u8377\u3001\u9045\u3044\uff0f\u9060\u3044\u6a29\u5a01\u3001Anycast\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u554f\u984c\u3001\u30d1\u30b1\u30c3\u30c8\u30ed\u30b9\u3001\u5927\u304d\u306a\u5fdc\u7b54\uff0fEDNS\u554f\u984c<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-54db1fb jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5730\u57df\u5225\u306ep95\u9045\u5ef6\u3092\u8ffd\u8de1\uff1b\u30ea\u30ab\u30fc\u30b7\u30d6\u5bfe\u6a29\u5a01\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u6bd4\u8f03\uff1b\u7570\u306a\u308b\u30ea\u30be\u30eb\u30d0\u3092\u30c6\u30b9\u30c8\uff1b\u5fdc\u7b54\u30b5\u30a4\u30ba\uff0fEDNS\u3092\u30c1\u30a7\u30c3\u30af\uff1b\u30d1\u30b1\u30c3\u30c8\u30ed\u30b9\u3092\u78ba\u8a8d<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-e8e5ea9\"><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-f83ab1b\"><td class=\"jet-table__cell elementor-repeater-item-c2a8b9e jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5909\u66f4\u304c\u671f\u5f85\u901a\u308a\u306b\u4f1d\u64ad\u3057\u306a\u3044<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-6b75fdf jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">TTL\u304c\u9ad8\u3059\u304e\u308b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u7d50\u679c\u3001\u53e4\u3044\u30bb\u30ab\u30f3\u30c0\u30ea\u30be\u30fc\u30f3\u3001\u7570\u306a\u308b\u30ea\u30be\u30eb\u30d0\u30fc\u3078\u306e\u554f\u3044\u5408\u308f\u305b<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-fd95306 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">TTL\u3092\u78ba\u8a8d\uff1b\u307e\u305a\u6a29\u5a01\u3042\u308bNS\u3092\u691c\u8a3c\uff1bSOA\u30b7\u30ea\u30a2\u30eb\u304c\u5897\u52a0\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\uff1b\u3059\u3079\u3066\u306eNS\u304c\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\uff1b\u8907\u6570\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u3084\u5730\u57df\u3067\u30c6\u30b9\u30c8<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-c835fcc\"><td class=\"jet-table__cell elementor-repeater-item-a7533d8 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u3084\u5730\u57df\u3067\u306f\u6a5f\u80fd\u3059\u308b\u304c\u4ed6\u3067\u306f\u3057\u306a\u3044<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-4a1764c jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">GeoDNS\/Anycast\u306e\u4e0d\u5747\u8861\u3001\u4e00\u90e8\u306e\u969c\u5bb3\u3001\u30b9\u30d7\u30ea\u30c3\u30c8\u30db\u30e9\u30a4\u30ba\u30f3DNS\u3001ISP\u30ea\u30be\u30eb\u30d0\u30fc\u306e\u554f\u984c<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-64ee397 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u8907\u6570\u5730\u57df\u3067\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u884c\uff1bISP\u3068\u30d1\u30d6\u30ea\u30c3\u30af\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u6bd4\u8f03\uff1bGeoDNS\u30eb\u30fc\u30eb\u3092\u691c\u8a3c\uff1b\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306ePOP\/\u5730\u57df\u306e\u52a3\u5316\u3092\u78ba\u8a8d<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-79e0095\"><td class=\"jet-table__cell elementor-repeater-item-5bef5df jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u30e1\u30fc\u30eb\u914d\u4fe1\u5931\u6557\uff08MX\u95a2\u9023\uff09<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-6b0f968 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">MX\u306e\u6b20\u5982\u307e\u305f\u306f\u8aa4\u308a\u3001\u512a\u5148\u5ea6\u306e\u9593\u9055\u3044\u3001\u30e1\u30fc\u30eb\u30db\u30b9\u30c8\u306e\u540d\u524d\u89e3\u6c7a\u5931\u6557\u3001SPF\/DKIM\/DMARC\u306eTXT\u554f\u984c<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-0841ba2 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">MX\u30ec\u30b3\u30fc\u30c9\u3068\u512a\u5148\u5ea6\u306e\u9806\u5e8f\u3092\u691c\u8a3c\uff1b\u30e1\u30fc\u30eb\u30db\u30b9\u30c8\u540d\u304c\u89e3\u6c7a\u3055\u308c\u308b\u3053\u3068\u3092\u78ba\u8a8d\uff1bSPF\/DKIM\/DMARC\u3092\u691c\u8a3c\uff1b\u4f1d\u64ad\u3092\u78ba\u8a8d<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-f178901\"><td class=\"jet-table__cell elementor-repeater-item-b96e786 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">CNAME\u30eb\u30fc\u30d7\u307e\u305f\u306f\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7\u306e\u7af6\u5408<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-b4b11ae jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">CNAME\u30c1\u30a7\u30fc\u30f3\u306e\u30eb\u30fc\u30d7\u3001A\u3068CNAME\u306e\u7af6\u5408\u3001\u4e0d\u6b63\u306a\u30bf\u30fc\u30b2\u30c3\u30c8\/CDN\u8a2d\u5b9a<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-c523495 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">CNAME\u30c1\u30a7\u30fc\u30f3\u3092\u30b9\u30c6\u30c3\u30d7\u3054\u3068\u306b\u8ffd\u8de1\uff1b\u5faa\u74b0\u53c2\u7167\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\uff1b\u8a31\u53ef\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u6240\uff08\u30a2\u30da\u30c3\u30af\u30b9\uff09\u3067CNAME\u3092\u4f7f\u3063\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-8b9faa2\"><td class=\"jet-table__cell elementor-repeater-item-301182e jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">DNSSEC\u95a2\u9023\u306e\u969c\u5bb3<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-0ebbf66 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">DS\/DNSKEY\u306e\u4e0d\u4e00\u81f4\u3001\u6709\u52b9\u671f\u9650\u5207\u308c\u306e\u7f72\u540d\u3001\u4e0d\u6b63\u306a\u30ad\u30fc\u306e\u30ed\u30fc\u30eb\u30aa\u30fc\u30d0\u30fc<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-4b59a2d jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u30ec\u30b8\u30b9\u30c8\u30e9\u306eDS\u304cDNSKEY\u3068\u4e00\u81f4\u3059\u308b\u304b\u78ba\u8a8d\uff1b\u7f72\u540d\u306e\u6709\u52b9\u6027\u3068\u6709\u52b9\u671f\u9650\u3092\u30c1\u30a7\u30c3\u30af\uff1bDNSSEC\u30ed\u30fc\u30eb\u30aa\u30fc\u30d0\u30fc\u306e\u5909\u66f4\u3092\u30ec\u30d3\u30e5\u30fc\uff1b\u8907\u6570\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u3067\u691c\u8a3c<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-6cdd684\"><td class=\"jet-table__cell elementor-repeater-item-95abb3f jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5927\u304d\u306aTXT\u5fdc\u7b54\u304c\u5931\u6557\u307e\u305f\u306f\u5207\u308a\u6368\u3066\u3089\u308c\u308b<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-419859f jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">UDP\u65ad\u7247\u5316\u306e\u30d6\u30ed\u30c3\u30af\u3001MTU\u554f\u984c\u3001EDNS\u8aa4\u8a2d\u5b9a\u3001TCP\/53\u306e\u30d6\u30ed\u30c3\u30af<\/div><\/div><\/div><\/td><td class=\"jet-table__cell elementor-repeater-item-a9c52c8 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">\u5207\u308a\u6368\u3066\uff08TC\u30d5\u30e9\u30b0\uff09\u3092\u78ba\u8a8d\uff1bTCP\u3067\u518d\u8a66\u884c\uff1bTCP\/53\u304c\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\uff1b\u53ef\u80fd\u306a\u3089\u30ec\u30b3\u30fc\u30c9\u30b5\u30a4\u30ba\u3092\u6e1b\u3089\u3059\uff1bEDNS\u8a2d\u5b9a\u3092\u691c\u8a3c<\/div><\/div><\/div><\/td><\/tr><\/tbody>\n\t\t\t<\/table>\n\t\t<\/div>\n\n\t\t<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45be655 elementor-widget elementor-widget-text-editor\" data-id=\"45be655\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 id='dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u5b9f\u88c5'  id=\"boomdevs_16\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u5b9f\u88c5<\/h2><h3 id='1-\u9069\u5207\u306a\u30c4\u30fc\u30eb\u306e\u9078\u629e'  id=\"boomdevs_17\">1. \u9069\u5207\u306a\u30c4\u30fc\u30eb\u306e\u9078\u629e<\/h3><p><a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/managed-dns\/\">DNS<\/a>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306b\u306f\u3001\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u304b\u3089\u5305\u62ec\u7684\u306a\u5546\u7528\u88fd\u54c1\u307e\u3067\u591a\u304f\u306e\u30c4\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3002\u4ee3\u8868\u7684\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p><ul><li><strong>Nagios:<\/strong> DNS\u30b5\u30fc\u30d0\u30fc\u3084DNS\u30af\u30a8\u30ea\u3092\u76e3\u8996\u3059\u308b\u3088\u3046\u8a2d\u5b9a\u3067\u304d\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u76e3\u8996\u30b7\u30b9\u30c6\u30e0\u3002<\/li><li><strong>Zabbix:<\/strong> DNS\u30b5\u30fc\u30d0\u30fc\u76e3\u8996\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u76e3\u8996\u306a\u3069DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u4ed6\u306e\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30c4\u30fc\u30eb\u3002<\/li><li><strong>Pingdom:<\/strong> \u8a73\u7d30\u306aDNS\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304a\u3088\u3073\u53ef\u7528\u6027\u306e\u76e3\u8996\u3068\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u76e3\u8996\u3092\u63d0\u4f9b\u3059\u308b\u5546\u7528\u30b5\u30fc\u30d3\u30b9\u3002<\/li><li><strong>Dynatrace:<\/strong> \u4ed6\u306e\u76e3\u8996\u30b5\u30fc\u30d3\u30b9\u3068\u9023\u643a\u3059\u308bDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u542b\u3080\u5305\u62ec\u7684\u306a\u76e3\u8996\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3002<\/li><li><strong>Dotcom-Monitor:<\/strong> \u8a73\u7d30\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6307\u6a19\u3068\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30a2\u30e9\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u3001DNS\u30a4\u30f3\u30d5\u30e9\u306e\u53ef\u7528\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3059\u308b\u5546\u7528\u30c4\u30fc\u30eb\u3002<\/li><li><strong>\u30ea\u30a2\u30eb\u30e6\u30fc\u30b6\u30fc\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0 (RUM):<\/strong> \u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3068\u3084\u308a\u3068\u308a\u3059\u308b\u30c7\u30fc\u30bf\u3092\u53ce\u96c6\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u8996\u70b9\u306eDNS\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5206\u6790\u3059\u308b\u30c4\u30fc\u30eb\u3002<\/li><li><strong>\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9:<\/strong> \u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306e\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3092\u5229\u7528\u3057\u3066DNS\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6307\u6a19\u3092\u8996\u899a\u5316\u3057\u3001\u30c8\u30ec\u30f3\u30c9\u3092\u8ffd\u8de1\u3002<\/li><\/ul><p>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u8a55\u4fa1\u3059\u308b\u5834\u5408\u306f\u3001<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/best-dns-monitoring-tools\/\">\u4e3b\u8981\u306aDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb<\/a>\u306e\u307e\u3068\u3081\u3068\u6bd4\u8f03\u6a5f\u80fd\uff08\u591a\u5730\u57df\u30d7\u30ed\u30fc\u30d6\u3001\u30ea\u30be\u30eb\u30d0\u30fc\u30ab\u30d0\u30ec\u30c3\u30b8\u3001\u30a2\u30e9\u30fc\u30c8\u3001\u30ec\u30dd\u30fc\u30c8\uff09\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p><h3 id='2-\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u8a2d\u5b9a'  id=\"boomdevs_18\">2. \u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u8a2d\u5b9a<\/h3><h4 id='\u30b9\u30c6\u30c3\u30d71-\u91cd\u8981\u306adns\u30ec\u30b3\u30fc\u30c9\u3092\u5b9a\u7fa9'  id=\"boomdevs_19\">\u30b9\u30c6\u30c3\u30d71\uff1a\u91cd\u8981\u306aDNS\u30ec\u30b3\u30fc\u30c9\u3092\u5b9a\u7fa9<\/h4><p>\u76e3\u8996\u5bfe\u8c61\u3068\u3059\u308b\u3059\u3079\u3066\u306e\u91cd\u8981\u306aDNS\u30ec\u30b3\u30fc\u30c9\u3092\u7279\u5b9a\u3057\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7\u3057\u307e\u3059\u3002\u901a\u5e38\u4ee5\u4e0b\u3092\u542b\u307f\u307e\u3059\uff1a<\/p><ul><li>A\u30ec\u30b3\u30fc\u30c9<\/li><li>CNAME\u30ec\u30b3\u30fc\u30c9<\/li><li>MX\u30ec\u30b3\u30fc\u30c9<\/li><li>TXT\u30ec\u30b3\u30fc\u30c9<\/li><\/ul><h4 id='\u30b9\u30c6\u30c3\u30d72-\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u8a2d\u5b9a'  id=\"boomdevs_20\">\u30b9\u30c6\u30c3\u30d72\uff1a\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u8a2d\u5b9a<\/h4><p>\u9078\u629e\u3057\u305f\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u3067\u3001\u5b9a\u7fa9\u3057\u305fDNS\u30ec\u30b3\u30fc\u30c9\u306e\u53ef\u7528\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9a\u671f\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3088\u3046\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u901a\u5e38\u306f\u4ee5\u4e0b\u306e\u4f5c\u696d\u3092\u542b\u307f\u307e\u3059\uff1a<\/p><ul><li>\u76e3\u8996\u30c4\u30fc\u30eb\u306bDNS\u30ec\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3002<\/li><li>\u554f\u984c\u767a\u751f\u6642\u306b\u901a\u77e5\u3059\u308b\u305f\u3081\u306e\u30a2\u30e9\u30fc\u30c8\u6a5f\u69cb\uff08\u30e1\u30fc\u30eb\u3001SMS\u3001Webhook\u306a\u3069\uff09\u306e\u8a2d\u5b9a\u3002<\/li><li>\u8a31\u5bb9\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u57fa\u6e96\uff08\u5fdc\u7b54\u6642\u9593\u3001\u89e3\u6c7a\u6642\u9593\u306a\u3069\uff09\u306e\u3057\u304d\u3044\u5024\u8a2d\u5b9a\u3002<\/li><\/ul><h4 id='\u30b9\u30c6\u30c3\u30d73-\u7d99\u7d9a\u7684\u306a\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30a2\u30e9\u30fc\u30c8'  id=\"boomdevs_21\">\u30b9\u30c6\u30c3\u30d73\uff1a\u7d99\u7d9a\u7684\u306a\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30a2\u30e9\u30fc\u30c8<\/h4><p>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u304cDNS\u30ec\u30b3\u30fc\u30c9\u3092\u5b9a\u671f\u7684\u306b\u7d99\u7d9a\u30c1\u30a7\u30c3\u30af\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u6761\u4ef6\u3067\u5373\u5ea7\u306b\u901a\u77e5\u304c\u6765\u308b\u3088\u3046\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u8a2d\u5b9a\uff1a<\/p><ul><li>DNS\u30ec\u30b3\u30fc\u30c9\u304c\u5230\u9054\u4e0d\u80fd\u306b\u306a\u3063\u305f\u5834\u5408\u3002<\/li><li>\u5fdc\u7b54\u6642\u9593\u304c\u8a31\u5bb9\u7bc4\u56f2\u3092\u8d85\u3048\u305f\u5834\u5408\u3002<\/li><li>\u5fdc\u7b54\u6642\u9593\u306e\u6025\u6fc0\u306a\u5897\u52a0\u3084DNS\u30ec\u30b3\u30fc\u30c9\u306e\u5909\u5316\u306a\u3069\u7570\u5e38\u306a\u6d3b\u52d5\u3092\u691c\u51fa\u3057\u305f\u5834\u5408\u3002<\/li><\/ul><h4 id='\u30b9\u30c6\u30c3\u30d74-\u30a2\u30e9\u30fc\u30c8\u306e\u5206\u6790\u3068\u5bfe\u5fdc'  id=\"boomdevs_22\">\u30b9\u30c6\u30c3\u30d74\uff1a\u30a2\u30e9\u30fc\u30c8\u306e\u5206\u6790\u3068\u5bfe\u5fdc<\/h4><p>\u30a2\u30e9\u30fc\u30c8\u767a\u751f\u6642\u306b\u306f\u5bfe\u5fdc\u8a08\u753b\u3092\u7528\u610f\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u5185\u5bb9\u306f\u4ee5\u4e0b\u3092\u542b\u307f\u307e\u3059\uff1a<\/p><ul><li>\u554f\u984c\u539f\u56e0\u306e\u7279\u5b9a\uff08\u4f8b\uff1a\u30b5\u30fc\u30d0\u30fc\u969c\u5bb3\u3001\u8a2d\u5b9a\u30df\u30b9\u3001DDoS\u653b\u6483\uff09\u3002<\/li><li>\u662f\u6b63\u63aa\u7f6e\u306e\u5b9f\u884c\uff08\u4f8b\uff1aDNS\u30b5\u30fc\u30d3\u30b9\u306e\u518d\u8d77\u52d5\u3001DNS\u8a2d\u5b9a\u66f4\u65b0\u3001\u653b\u6483\u306e\u7de9\u548c\uff09\u3002<\/li><li>\u4e8b\u8c61\u306e\u8a18\u9332\u304a\u3088\u3073\u518d\u767a\u9632\u6b62\u306e\u305f\u3081\u306e\u89e3\u6c7a\u624b\u9806\u306e\u6587\u66f8\u5316\u3002<\/li><\/ul><h2 id='dns\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9'  id=\"boomdevs_23\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2><ul><li><strong>\u5197\u9577\u6027\uff1a<\/strong>\u8907\u6570\u5730\u57df\u3067DNS\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u3046\u3060\u3051\u3067\u306a\u304f\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u5358\u4f4d\u306e\u969c\u5bb3\u56de\u907f\u306e\u305f\u3081\u306b\u8907\u6570DNS\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u5229\u7528\u3057\u3001\u305d\u308c\u305e\u308c\u5225\u3005\u306e\u30a4\u30f3\u30d5\u30e9\u3092\u6301\u305f\u305b\u308b\u3053\u3068\u304c\u91cd\u8981\u3002\u30be\u30fc\u30f3\u30c7\u30fc\u30bf\u3092\u540c\u671f\u3055\u305b\u3001\u5404\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u72ec\u7acb\u306b\u76e3\u8996\u3002<\/li><li><strong>\u5b9a\u671f\u7684\u306a\u76e3\u67fb\uff1a<\/strong>DNS\u8a2d\u5b9a\u3092\u5b9a\u671f\u7684\u306b\u898b\u76f4\u3057\u3001\u6700\u65b0\u304b\u3064\u5b89\u5168\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3002\u8a2d\u5b9a\u30df\u30b9\u3084\u8106\u5f31\u6027\u306e\u767a\u898b\u306b\u5f79\u7acb\u3064\u3002<\/li><li><strong>Anycast\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5229\u7528\uff1a<\/strong>DNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8907\u6570\u30b5\u30fc\u30d0\u30fc\u306b\u5206\u6563\u3057\u3001\u53ef\u7528\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3002<\/li><li><strong>DNSSEC\u306e\u5b9f\u88c5\uff1a<\/strong>DNS\u6b3a\u779e\u653b\u6483\u3092\u9632\u3050\u305f\u3081\u306eDNS\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62e1\u5f35\u3092\u5b9f\u88c5\u3002<\/li><li><strong>\u7d71\u5408\uff1a<\/strong>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u3092\u4ed6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u76e3\u8996\u3084Web\u30b5\u30fc\u30d3\u30b9\u3068\u7d71\u5408\u3057\u3001\u30a4\u30f3\u30d5\u30e9\u5168\u4f53\u306e\u5305\u62ec\u7684\u306a\u898b\u3048\u308b\u5316\u3092\u5b9f\u73fe\u3002<\/li><li><strong>\u901a\u77e5\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong>DNS\u554f\u984c\u3092\u5373\u5ea7\u306b\u691c\u77e5\u3057\u3066\u901a\u77e5\u3059\u308b\u5805\u7262\u306a\u901a\u77e5\u4f53\u5236\u3092\u69cb\u7bc9\u3057\u3001\u8fc5\u901f\u306a\u5bfe\u5fdc\u3068\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u6700\u5c0f\u5316\u3092\u5b9f\u73fe\u3002<\/li><li><strong>\u52b9\u679c\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a<\/strong>DNS\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u7406\u89e3\u3084\u30ed\u30b0\u89e3\u6790\u3092\u542b\u3080\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u30ac\u30a4\u30c9\u3092\u4f5c\u6210\u3057\u3001\u554f\u984c\u767a\u751f\u6642\u306b\u8fc5\u901f\u306b\u5bfe\u5fdc\u3002<\/li><li><strong>SaaS\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\uff1a<\/strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u5bb9\u6613\u306b\u3059\u308b\u305f\u3081SaaS\u578b\u306eDNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u3082\u691c\u8a0e\u3002<\/li><li><a href=\"https:\/\/www.dotcom-monitor.com\/learn\/glossary\/ssl-certificates\/\"><strong>SSL\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong><\/a><strong>\uff1a<\/strong>SSL\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u6027\u3068\u6700\u65b0\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u6226\u7565\u306bSSL\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u7d44\u307f\u8fbc\u3080\u3002<\/li><li><strong>IPv6\u5bfe\u5fdc\uff1a<\/strong>\u30e2\u30c0\u30f3\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6a19\u6e96\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081DNS\u30a4\u30f3\u30d5\u30e9\u304cIPv6\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3002<\/li><li><strong>\u30db\u30b9\u30c8\u540d\u304a\u3088\u3073\u30eb\u30fc\u30bf\u30fc\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\uff1a<\/strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u3059\u3079\u3066\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u6b63\u5e38\u306b\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u76e3\u8996\u3002<\/li><li><strong>API\u304a\u3088\u3073\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\uff1a<\/strong> <a href=\"https:\/\/www.dotcom-monitor.com\/blog\/what-is-web-api-monitoring\/\">API\u76e3\u8996<\/a>\u304a\u3088\u3073\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u3092\u76e3\u8996\u3057\u3001\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u4fdd\u8a3c\u3002<\/li><\/ul><h2 id='\u307e\u3068\u3081'  id=\"boomdevs_24\">\u307e\u3068\u3081<\/h2><p><a href=\"https:\/\/www.dotcom-monitor.com\/products\/dns-monitoring\/\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/a>\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5411\u3051\u30b5\u30fc\u30d3\u30b9\u306e\u53ef\u7528\u6027\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7dad\u6301\u306b\u5bc4\u4e0e\u3057\u307e\u3059\u3002\u52b9\u679c\u7684\u306a\u76e3\u8996\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067DNS\u30a4\u30f3\u30d5\u30e9\u306e\u53ef\u7528\u6027\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u76e3\u8996\u30b5\u30fc\u30d3\u30b9\u3001\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306a\u3069\u9069\u5207\u306a\u30c4\u30fc\u30eb\u3084\u30d7\u30ed\u30bb\u30b9\u3078\u306e\u6295\u8cc7\u306f\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u9632\u6b62\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u5411\u4e0a\u3001\u6f5c\u5728\u7684\u8105\u5a01\u304b\u3089\u306e\u4fdd\u8b77\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002<\/p><p>DNS\u30b5\u30fc\u30d0\u30fc\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5b9a\u671f\u76e3\u8996\u3001\u8106\u5f31\u6027\u5bfe\u7b56\u3001<a href=\"https:\/\/www.dotcom-monitor.com\/blog\/what-is-synthetic-monitoring\/\">\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u76e3\u8996<\/a>\u3092\u5229\u7528\u3057\u305f\u554f\u984c\u306e\u4e8b\u524d\u691c\u77e5\u3001SSL\u304a\u3088\u3073IPv6\u5bfe\u5fdc\u3092\u53d6\u308a\u5165\u308c\u308b\u3053\u3068\u306f\u3001\u8010\u969c\u5bb3\u6027\u306e\u9ad8\u3044DNS\u30a4\u30f3\u30d5\u30e9\u306e\u69cb\u7bc9\u306b\u4e0d\u53ef\u6b20\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u7d99\u7d9a\u7684\u306aDNS\u30b5\u30fc\u30d0\u30fc\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u52b9\u679c\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u3088\u308b\u9ad8\u3044\u7a3c\u50cd\u7387\u306e\u78ba\u4fdd\u306f\u3001\u4fe1\u983c\u6027\u3068\u52b9\u7387\u7684\u306a\u30aa\u30f3\u30e9\u30a4\u30f3\u30d7\u30ec\u30bc\u30f3\u30b9\u306e\u7dad\u6301\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p><h2 id='\u3088\u304f\u3042\u308b\u8cea\u554f'  id=\"boomdevs_25\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09f802f elementor-widget elementor-widget-jet-accordion\" data-id=\"09f802f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"jet-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"jet-accordion\" data-settings=\"{&quot;collapsible&quot;:false,&quot;ajaxTemplate&quot;:false,&quot;switchScrolling&quot;:false,&quot;switchScrollingTablet&quot;:false,&quot;switchScrollingMobile&quot;:false,&quot;switchScrollingOffset&quot;:{&quot;size&quot;:0,&quot;unit&quot;:&quot;px&quot;},&quot;switchScrollingOffsetTablet&quot;:{&quot;size&quot;:0,&quot;unit&quot;:&quot;px&quot;},&quot;switchScrollingOffsetMobile&quot;:{&quot;size&quot;:0,&quot;unit&quot;:&quot;px&quot;},&quot;switchScrollingDelay&quot;:500,&quot;switchScrollingDelayTablet&quot;:500,&quot;switchScrollingDelayMobile&quot;:500}\">\n\t\t\t<div class=\"jet-accordion__inner\">\n\t\t\t\t<div class=\" jet-accordion__item jet-toggle jet-toggle-move-up-effect \">\n\t\t\t\t\t\t\t<div id=\"jet-toggle-control-1041\" class=\"jet-toggle__control elementor-menu-anchor\" data-toggle=\"1\" role=\"button\" tabindex=\"0\" aria-controls=\"jet-toggle-content-1041\" aria-expanded=\"false\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__label-icon jet-toggle-icon-position-left\"><span class=\"jet-toggle__icon icon-normal jet-tabs-icon\"><i class=\"fas fa-plus\"><\/i><\/span><span class=\"jet-toggle__icon icon-active jet-tabs-icon\"><i class=\"fas fa-minus\"><\/i><\/span><\/div><div class=\"jet-toggle__label-text\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u30c9\u30e1\u30a4\u30f3\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u9055\u3044\u306f\uff1f<\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div id=\"jet-toggle-content-1041\" class=\"jet-toggle__content\" data-toggle=\"1\" role=\"region\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__content-inner\"><p>DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306fDNS\u304c\u6b63\u3057\u304f\u901f\u3084\u304b\u306b\u89e3\u6c7a\u3055\u308c\u3066\u3044\u308b\u304b\uff08\u7a3c\u50cd\u6642\u9593\u3001\u9045\u5ef6\u3001\u6b63\u3057\u3044\u30ec\u30b3\u30fc\u30c9\uff09\u3092\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306f\u6240\u6709\u6a29\u53ca\u3073\u7ba1\u7406\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u304a\u308a\u3001\u6709\u52b9\u671f\u9650\u306e\u72b6\u614b\u3001\u30ec\u30b8\u30b9\u30c8\u30e9\/WHOIS\u5909\u66f4\u3001\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u5909\u66f4\u3001\u985e\u4f3c\u30c9\u30e1\u30a4\u30f3\u306e\u60aa\u7528\u306a\u3069\u3092\u76e3\u8996\u3057\u307e\u3059\u3002<\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div><div class=\" jet-accordion__item jet-toggle jet-toggle-move-up-effect \">\n\t\t\t\t\t\t\t<div id=\"jet-toggle-control-1042\" class=\"jet-toggle__control elementor-menu-anchor\" data-toggle=\"2\" role=\"button\" tabindex=\"0\" aria-controls=\"jet-toggle-content-1042\" aria-expanded=\"false\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__label-icon jet-toggle-icon-position-left\"><span class=\"jet-toggle__icon icon-normal jet-tabs-icon\"><i class=\"fas fa-plus\"><\/i><\/span><span class=\"jet-toggle__icon icon-active jet-tabs-icon\"><i class=\"fas fa-minus\"><\/i><\/span><\/div><div class=\"jet-toggle__label-text\">DNS\u30c1\u30a7\u30c3\u30af\u306f\u3069\u308c\u304f\u3089\u3044\u306e\u983b\u5ea6\u3067\u5b9f\u884c\u3059\u3079\u304d\uff1f<\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div id=\"jet-toggle-content-1042\" class=\"jet-toggle__content\" data-toggle=\"2\" role=\"region\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__content-inner\"><p>\u91cd\u8981\u306a\u30db\u30b9\u30c8\u540d\uff08\u30eb\u30fc\u30c8\u30c9\u30e1\u30a4\u30f3\u3001www\u3001API\u3001\u30e1\u30fc\u30eb\uff09\u306f\u3001\u8907\u6570\u5730\u57df\u304b\u3089<strong>1\u301c5\u5206<\/strong>\u3054\u3068\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u91cd\u8981\u5ea6\u306e\u4f4e\u3044\u30ec\u30b3\u30fc\u30c9\u306f\u901a\u5e38<strong>5\u301c15\u5206<\/strong>\u3067\u5341\u5206\u3067\u3042\u308a\u3001\u79fb\u884c\u3084DNS\u5909\u66f4\u6642\u306b\u306f\u983b\u5ea6\u3092\u4e0a\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div><div class=\" jet-accordion__item jet-toggle jet-toggle-move-up-effect \">\n\t\t\t\t\t\t\t<div id=\"jet-toggle-control-1043\" class=\"jet-toggle__control elementor-menu-anchor\" data-toggle=\"3\" role=\"button\" tabindex=\"0\" aria-controls=\"jet-toggle-content-1043\" aria-expanded=\"false\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__label-icon jet-toggle-icon-position-left\"><span class=\"jet-toggle__icon icon-normal jet-tabs-icon\"><i class=\"fas fa-plus\"><\/i><\/span><span class=\"jet-toggle__icon icon-active jet-tabs-icon\"><i class=\"fas fa-minus\"><\/i><\/span><\/div><div class=\"jet-toggle__label-text\">\u91cd\u8981\u306aDNS\u30a8\u30e9\u30fc\u306f\u4f55\u304b\uff08SERVFAIL\u3068NXDOMAIN\u306e\u9055\u3044\uff09\uff1f<\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div id=\"jet-toggle-content-1043\" class=\"jet-toggle__content\" data-toggle=\"3\" role=\"region\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__content-inner\"><p><strong>SERVFAIL<\/strong>\u306f\u901a\u5e38\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u554f\u984c\u3001DNSSEC\u691c\u8a3c\u30a8\u30e9\u30fc\u3001\u3042\u308b\u3044\u306f\u6a29\u5a01DNS\u306e\u7834\u640d\u3092\u793a\u3059\u305f\u3081\u3088\u308a\u7dca\u6025\u5ea6\u304c\u9ad8\u3044\u3067\u3059\u3002<strong>NXDOMAIN<\/strong>\u306f\u5b58\u5728\u3057\u306a\u3044\u540d\u524d\u3067\u3042\u308c\u3070\u666e\u901a\u3067\u3059\u304c\u3001\u5b58\u5728\u3059\u3079\u304d\u30db\u30b9\u30c8\u540d\uff08www\u3084API\u306a\u3069\uff09\u3067\u73fe\u308c\u305f\u5834\u5408\u306f\u91cd\u5927\u3067\u3059\u3002<\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div><div class=\" jet-accordion__item jet-toggle jet-toggle-move-up-effect \">\n\t\t\t\t\t\t\t<div id=\"jet-toggle-control-1044\" class=\"jet-toggle__control elementor-menu-anchor\" data-toggle=\"4\" role=\"button\" tabindex=\"0\" aria-controls=\"jet-toggle-content-1044\" aria-expanded=\"false\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__label-icon jet-toggle-icon-position-left\"><span class=\"jet-toggle__icon icon-normal jet-tabs-icon\"><i class=\"fas fa-plus\"><\/i><\/span><span class=\"jet-toggle__icon icon-active jet-tabs-icon\"><i class=\"fas fa-minus\"><\/i><\/span><\/div><div class=\"jet-toggle__label-text\">DNS\u4f1d\u64ad\u3092\u6b63\u3057\u304f\u76e3\u8996\u3059\u308b\u306b\u306f\uff1f<\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div id=\"jet-toggle-content-1044\" class=\"jet-toggle__content\" data-toggle=\"4\" role=\"region\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__content-inner\"><p><strong>\u6a29\u5a01\u306e\u3042\u308b\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3067\u306e\u5909\u66f4\u3092\u6700\u521d\u306b\u78ba\u8a8d\u3057<\/strong>\u3001\u305d\u306e\u5f8c\u8907\u6570\u306e\u30d1\u30d6\u30ea\u30c3\u30af\u30ea\u30be\u30eb\u30d0\u30fc\u3084\u5730\u57df\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u3044\u3064\u66f4\u65b0\u3092\u78ba\u8a8d\u3067\u304d\u308b\u304b\u3092\u898b\u307e\u3059\u3002TTL\u3092\u8ffd\u8de1\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u591a\u304f\u306e\u300c\u4f1d\u64ad\u9045\u5ef6\u300d\u306fTTL\u304c\u5207\u308c\u308b\u307e\u3067\u66f4\u65b0\u3055\u308c\u306a\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u7d50\u679c\u3067\u3059\u3002<\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div><div class=\" jet-accordion__item jet-toggle jet-toggle-move-up-effect \">\n\t\t\t\t\t\t\t<div id=\"jet-toggle-control-1045\" class=\"jet-toggle__control elementor-menu-anchor\" data-toggle=\"5\" role=\"button\" tabindex=\"0\" aria-controls=\"jet-toggle-content-1045\" aria-expanded=\"false\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__label-icon jet-toggle-icon-position-left\"><span class=\"jet-toggle__icon icon-normal jet-tabs-icon\"><i class=\"fas fa-plus\"><\/i><\/span><span class=\"jet-toggle__icon icon-active jet-tabs-icon\"><i class=\"fas fa-minus\"><\/i><\/span><\/div><div class=\"jet-toggle__label-text\">DNS\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\/\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u3092\u3069\u306e\u3088\u3046\u306b\u691c\u51fa\u3057\u307e\u3059\u304b\uff1f<\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div id=\"jet-toggle-content-1045\" class=\"jet-toggle__content\" data-toggle=\"5\" role=\"region\" data-template-id=\"false\">\n\t\t\t\t\t\t\t\t<div class=\"jet-toggle__content-inner\"><p>\u91cd\u8981\u306a\u30ec\u30b3\u30fc\u30c9\uff08A\/AAAA\/CNAME\/MX\/TXT\uff09\u306e\u4e88\u671f\u3057\u306a\u3044\u5909\u66f4\u3084\u7279\u306b<strong>NS\/DS<\/strong>\u30ec\u30b3\u30fc\u30c9\u306b\u5bfe\u3059\u308b\u30a2\u30e9\u30fc\u30c8\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u8907\u6570\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u3084\u5730\u57df\u3067DNS\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u6bd4\u8f03\u3057\u3001HTTPS\u306e\u30c1\u30a7\u30c3\u30af\uff08\u8a3c\u660e\u66f8\/\u30b3\u30f3\u30c6\u30f3\u30c4\uff09\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-29c49ed e-flex e-con-boxed e-con e-child\" data-id=\"29c49ed\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e22b6b9 elementor-widget elementor-widget-heading\" data-id=\"e22b6b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">DNS\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u4f7f\u3063\u3066\u958b\u767a\u30fb\u76e3\u8996\u3092\u884c\u3044\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u53ef\u7528\u6027\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u7406\u7531\u3092\u78ba\u8a8d\u3059\u308b\u6e96\u5099\u306f\u3067\u304d\u3066\u3044\u307e\u3059\u304b\uff1f<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c800f2e elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"c800f2e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">\u4eca\u3059\u3050\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u306b\u767b\u9332\u3059\u308b\u304b\u3001\u30c7\u30e2\u3092\u4e88\u7d04\u3057\u3066\u5b9f\u969b\u306e\u52d5\u4f5c\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\uff01<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1704f73 e-grid e-con-boxed e-con e-child\" data-id=\"1704f73\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9880ffe elementor-widget__width-auto elementor-mobile-align-center elementor-align-right elementor-invisible elementor-widget elementor-widget-button\" data-id=\"9880ffe\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-lg\" href=\"https:\/\/userauth.dotcom-monitor.com\/Account\/FreeTrialSignUp?SolutionType=Monitoring\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">\u59cb\u3081\u308b<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55fee86 elementor-widget__width-auto elementor-mobile-align-center elementor-invisible elementor-widget elementor-widget-button\" data-id=\"55fee86\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-lg\" href=\"https:\/\/www.dotcom-monitor.com\/demo\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">1\u5bfe1\u30c7\u30e2<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-71c40d1 e-con-full e-flex e-con e-child\" data-id=\"71c40d1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;],&quot;sticky_offset&quot;:60,&quot;sticky_effects_offset&quot;:&quot;200&quot;,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_anchor_link_offset&quot;:0}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23611cb elementor-widget elementor-widget-text-editor\" data-id=\"23611cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>        \n            \n            <div class=\"fit_content\">\n                <div class=\"bd_toc_container\" data-fixedWidth=\"\">\n                    <div class=\"bd_toc_wrapper\" data-wrapperPadding=\"90px\">\n                        <div class=\"bd_toc_wrapper_item\">\n                            <div class=\"bd_toc_header active\" data-headerPadding=\"2px\">\n                                <div class=\"bd_toc_header_title\">\n                                    In this article                                <\/div>\n                                <div class=\"bd_toc_switcher_hide_show_icon\">\n                                    <span class=\"bd_toc_arrow\"><\/span>                                <\/div>\n                            <\/div>\n                            <div class=\"bd_toc_content list-type-none\">\n                                <div class=\"bd_toc_content_list \">\n                                    <div class='bd_toc_content_list_item'><ul>\n  <li class=\"first last\">\n    <a href=\"#what-is-dns-monitoring\">What is DNS Monitoring?<\/a>\n    <ul class=\"menu_level_1\">\n      <li class=\"first\">\n        <a href=\"#what-is-dns-monitoring-1\">What is DNS Monitoring?<\/a>\n      <\/li>\n      <li>\n        <a href=\"#what-to-measure-in-dns-monitoring\">What to Measure in DNS Monitoring<\/a>\n      <\/li>\n      <li>\n        <a href=\"#common-dns-failures\">Common DNS failures<\/a>\n      <\/li>\n      <li>\n        <a href=\"#implementing-dns-monitoring\">Implementing DNS Monitoring<\/a>\n      <\/li>\n      <li>\n        <a href=\"#best-practices-for-dns-monitoring\">Best Practices for DNS Monitoring<\/a>\n      <\/li>\n      <li>\n        <a href=\"#conclusion\">Conclusion<\/a>\n      <\/li>\n      <li class=\"last\">\n        <a href=\"#frequently-asked-questions\">Frequently Asked Questions<\/a>\n      <\/li>\n    <\/ul>\n  <\/li>\n<\/ul>\n<\/div>                                <\/div>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                    <div class=\"layout_toggle_button\">\n                        <span class=\"bd_toc_arrow\"><\/span>\n                    <\/div>\n                <\/div>\n            <\/div>\n\n    <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Home What is DNS Monitoring? Last Update &hellip; <a href=\"https:\/\/www.dotcom-monitor.com\/ja\/%e3%83%89%e3%83%83%e3%83%88%e3%82%b3%e3%83%a0%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%bc%e3%81%a7%e5%ad%a6%e3%81%b6\/%e7%94%a8%e8%aa%9e%e9%9b%86\/dns%e3%83%a2%e3%83%8b%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a8%e3%81%af%ef%bc%9f\/\">Read More<\/a><\/p>\n","protected":false},"author":23,"featured_media":0,"parent":27771,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-27891","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/pages\/27891","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/comments?post=27891"}],"version-history":[{"count":0,"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/pages\/27891\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/pages\/27771"}],"wp:attachment":[{"href":"https:\/\/www.dotcom-monitor.com\/ja\/wp-json\/wp\/v2\/media?parent=27891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}