{"id":595,"date":"2025-10-16T00:22:07","date_gmt":"2025-10-15T15:22:07","guid":{"rendered":"https:\/\/hajidai.com\/security\/2025\/10\/%e7%b0%a1%e5%8d%985%e5%88%86%ef%bc%81dns%e3%83%95%e3%82%a3%e3%83%ab%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a7%e4%bb%8a%e3%81%99%e3%81%90%e5%a7%8b%e3%82%81%e3%82%8b%e5%ae%89%e5%85%a8%e3%81%aa\/"},"modified":"2025-10-16T00:22:07","modified_gmt":"2025-10-15T15:22:07","slug":"%e7%b0%a1%e5%8d%985%e5%88%86%ef%bc%81dns%e3%83%95%e3%82%a3%e3%83%ab%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a7%e4%bb%8a%e3%81%99%e3%81%90%e5%a7%8b%e3%82%81%e3%82%8b%e5%ae%89%e5%85%a8%e3%81%aa","status":"publish","type":"post","link":"https:\/\/hajidai.com\/security\/2025\/10\/%e7%b0%a1%e5%8d%985%e5%88%86%ef%bc%81dns%e3%83%95%e3%82%a3%e3%83%ab%e3%82%bf%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a7%e4%bb%8a%e3%81%99%e3%81%90%e5%a7%8b%e3%82%81%e3%82%8b%e5%ae%89%e5%85%a8%e3%81%aa\/","title":{"rendered":"\u7c21\u53585\u5206\uff01DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3067\u4eca\u3059\u3050\u59cb\u3081\u308b\u5b89\u5168\u306a\u30cd\u30c3\u30c8\u30e9\u30a4\u30d5"},"content":{"rendered":"

\u4eca\u3059\u3050\u8a66\u305b\u308bDNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff1a\u60aa\u610f\u3042\u308b\u30b5\u30a4\u30c8\u304b\u3089\u3042\u306a\u305f\u3092\u5b88\u308b\u7c21\u5358\u306a\u65b9\u6cd5<\/h2>\n

\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u5b89\u5168\u306b\u5229\u7528\u3057\u305f\u3044\u65b9\u3078\u3001\u4eca\u3059\u3050\u8a66\u305b\u308b\u5177\u4f53\u7684\u306a\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u60aa\u610f\u3042\u308b\u30b5\u30a4\u30c8\u304b\u3089\u30c7\u30d0\u30a4\u30b9\u3092\u5b88\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001Google Public DNS\u3092\u4f7f\u7528\u3057\u3066\u3001DNS\u30b5\u30fc\u30d0\u30fc\u30928.8.8.8\u30688.8.4.4\u306b\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u591a\u304f\u306e\u5371\u967a\u306a\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

1. DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3068\u306f\u4f55\u304b\uff1f<\/h3>\n

DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u60aa\u610f\u3042\u308b\u30b5\u30a4\u30c8\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u52b9\u679c\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3067\u3059\u3002DNS\u3068\u306f\u300cDomain Name System\uff08\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b7\u30b9\u30c6\u30e0\uff09\u300d\u306e\u7565\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30a2\u30c9\u30ec\u30b9\u5e33\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n

\u901a\u5e38\u3001\u79c1\u305f\u3061\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u969b\u3001URL\u3092\u5165\u529b\u3057\u307e\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f\u305d\u306eURL\u306b\u5bfe\u5fdc\u3059\u308bIP\u30a2\u30c9\u30ec\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3044\u307e\u3059\u3002DNS\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u3053\u306eURL\u3068IP\u30a2\u30c9\u30ec\u30b9\u306e\u5909\u63db\u3092\u884c\u3046\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u3053\u306eDNS\u30b5\u30fc\u30d0\u30fc\u306b\u3001\u60aa\u610f\u3042\u308b\u30b5\u30a4\u30c8\u306e\u30ea\u30b9\u30c8\u3092\u7d44\u307f\u8fbc\u3080\u3053\u3068\u3067\u6a5f\u80fd\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u5371\u967a\u306a\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001DNS\u30b5\u30fc\u30d0\u30fc\u304c\u305d\u306e\u30a2\u30af\u30bb\u30b9\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001\u5b89\u5168\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5229\u7528\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/p>\n

2. DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n

DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u8a2d\u5b9a\u306f\u3001\u601d\u3063\u305f\u3088\u308a\u7c21\u5358\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u4e00\u822c\u7684\u306a\u624b\u9806\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n

1. \u304a\u4f7f\u3044\u306e\u30c7\u30d0\u30a4\u30b9\uff08\u30d1\u30bd\u30b3\u30f3\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3092\u958b\u304d\u307e\u3059\u3002
\n2. DNS\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u3092\u63a2\u3057\u307e\u3059\u3002
\n3. \u65e2\u5b58\u306eDNS\u30b5\u30fc\u30d0\u30fc\u30a2\u30c9\u30ec\u30b9\u3092\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u65bd\u3055\u308c\u305fDNS\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u3001Google Public DNS\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u307e\u3059\uff1a
\n– \u30d7\u30e9\u30a4\u30de\u30eaDNS\uff1a8.8.8.8
\n– \u30bb\u30ab\u30f3\u30c0\u30eaDNS\uff1a8.8.4.4<\/p>\n

\u4ed6\u306b\u3082\u3001Cloudflare\uff081.1.1.1\uff09\u3084OpenDNS\uff08208.67.222.222, 208.67.220.220\uff09\u306a\u3069\u3001\u4fe1\u983c\u3067\u304d\u308bDNS\u30b5\u30fc\u30d3\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d3\u30b9\u306f\u3001\u5e38\u306b\u6700\u65b0\u306e\u8105\u5a01\u60c5\u5831\u3092\u5143\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u884c\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u9ad8\u3044\u5b89\u5168\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n

\u8a2d\u5b9a\u5909\u66f4\u5f8c\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u3092\u518d\u8d77\u52d5\u3059\u308b\u304b\u3001\u30c7\u30d0\u30a4\u30b9\u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3067\u5909\u66f4\u304c\u53cd\u6620\u3055\u308c\u307e\u3059\u3002<\/p>\n

3. DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306e\u5229\u70b9\u3068\u6ce8\u610f\u70b9<\/h3>\n

DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306b\u306f\u591a\u304f\u306e\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u6ce8\u610f\u70b9\u3082\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n

\u5229\u70b9\uff1a
\n– \u30de\u30eb\u30a6\u30a7\u30a2\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050
\n– \u8a2d\u5b9a\u304c\u7c21\u5358\u3067\u3001\u7279\u5225\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u4e0d\u8981
\n– \u30c7\u30d0\u30a4\u30b9\u306e\u51e6\u7406\u901f\u5ea6\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u306b\u304f\u3044
\n– \u591a\u304f\u306e\u5834\u5408\u3001\u7121\u6599\u3067\u5229\u7528\u53ef\u80fd<\/p>\n

\u6ce8\u610f\u70b9\uff1a
\n– 100%\u306e\u4fdd\u8b77\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u3044
\n– \u4e00\u90e8\u306e\u6b63\u5e38\u306a\u30b5\u30a4\u30c8\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b
\n– \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u306b\u95a2\u3059\u308b\u61f8\u5ff5\uff08DNS\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u5c65\u6b74\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff09<\/p>\n

DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u52b9\u679c\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3067\u3059\u304c\u3001\u5b8c\u74a7\u306a\u4fdd\u8b77\u624b\u6bb5\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u306e\u4f7f\u7528\u3001\u5b9a\u671f\u7684\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3001\u5f37\u529b\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u4f7f\u7528\u306a\u3069\u3001\u4ed6\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\u307e\u305f\u3001\u5bb6\u5ead\u5185\u306e\u5168\u30c7\u30d0\u30a4\u30b9\u3092\u4fdd\u8b77\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30eb\u30fc\u30bf\u30fc\u306eDNS\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u63a5\u7d9a\u3055\u308c\u308b\u3059\u3079\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u306bDNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u9069\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001IoT\u30c7\u30d0\u30a4\u30b9\u3092\u542b\u3080\u5168\u3066\u306e\u63a5\u7d9a\u6a5f\u5668\u3092\u4e00\u62ec\u3067\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u3001\u7c21\u5358\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u5f37\u529b\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3067\u3059\u3002\u4eca\u3059\u3050\u8a66\u3057\u3066\u307f\u308b\u3053\u3068\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5229\u7528\u6642\u306e\u5b89\u5168\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5e38\u306b\u6ce8\u610f\u3092\u6020\u3089\u305a\u3001\u7dcf\u5408\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u5fc3\u304c\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4eca\u3059\u3050\u8a66\u305b\u308bDNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff1a\u60aa\u610f\u3042\u308b\u30b5\u30a4\u30c8\u304b\u3089\u3042\u306a\u305f\u3092\u5b88\u308b\u7c21\u5358\u306a\u65b9\u6cd5 \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u5b89\u5168\u306b\u5229\u7528\u3057\u305f\u3044\u65b9\u3078\u3001\u4eca\u3059\u3050\u8a66\u305b\u308b\u5177\u4f53\u7684\u306a\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002DNS\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u60aa\u610f\u3042\u308b\u30b5\u30a4<\/p>\n","protected":false},"author":3,"featured_media":594,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"_links":{"self":[{"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/posts\/595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/comments?post=595"}],"version-history":[{"count":0,"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/posts\/595\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/media\/594"}],"wp:attachment":[{"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/media?parent=595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/categories?post=595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hajidai.com\/security\/wp-json\/wp\/v2\/tags?post=595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}