{"id":19609,"date":"2026-06-02T11:48:44","date_gmt":"2026-06-02T09:48:44","guid":{"rendered":"https:\/\/webhosting.de\/dns-over-https-dns-over-tls-im-hosting-sicherheit-future\/"},"modified":"2026-06-02T11:48:44","modified_gmt":"2026-06-02T09:48:44","slug":"dns-over-https-dns-over-tls-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%83%bb%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e3%81%ae%e6%9c%aa%e6%9d%a5","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/dns-over-https-dns-over-tls-im-hosting-sicherheit-future\/","title":{"rendered":"\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3067DNS over HTTPS\u3068DNS over TLS\u3092\u5b89\u5168\u306b\u4f7f\u7528\u3059\u308b"},"content":{"rendered":"<p>\u305d\u306e\u65b9\u6cd5\u3092\u304a\u898b\u305b\u3057\u3088\u3046\u3002 <strong>DNS\u30aa\u30fc\u30d0\u30fc<\/strong> HTTPS\uff08DoH\uff09\u3068DNS over TLS\uff08DoT\uff09\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u900f\u660e\u6027\u3092\u5931\u3046\u3053\u3068\u306a\u304f\u3001\u5b89\u5168\u306b\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6a5f\u80fd\u6027\u3001\u76f8\u9055\u70b9\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u30fb\u30d1\u30bf\u30fc\u30f3\u3001\u5177\u4f53\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u3066\u3044\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002 <strong>\u30ea\u30be\u30eb\u30d0<\/strong> \u78ba\u5b9f\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u4f5c\u696d\u304c\u3067\u304d\u308b\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<p>DoH\u3068DoT\u3092\u5b89\u5168\u304b\u3064\u9ad8\u6027\u80fd\u306b\u7d71\u5408\u3059\u308b\u305f\u3081\u306e\u6982\u8981\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002.<\/p>\n<ul>\n  <li><strong>DoT<\/strong> \u306f\u30dd\u30fc\u30c8853\u7d4c\u7531\u3067DNS\u3092\u76f4\u63a5TLS\u306b\u30ab\u30d7\u30bb\u30eb\u5316\u3059\u308b\uff1b; <strong>DoH<\/strong> \u306f443\u756a\u30dd\u30fc\u30c8\u7d4c\u7531\u3067HTTPS\u3092\u4f7f\u7528\u3059\u308b\u3002.<\/li>\n  <li><strong>\u6697\u53f7\u5316<\/strong> \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9332\u97f3\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\uff1b; <strong>\u8a8d\u8a3c<\/strong> \u306f\u30ea\u30be\u30eb\u30d0\u306eID\u3092\u4fdd\u5b58\u3059\u308b\u3002.<\/li>\n  <li><strong>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0<\/strong>-\u7528\u9014\uff1aDoT\u306f\u30a4\u30f3\u30d5\u30e9\u30fb\u30d1\u30b9\u306b\u9069\u3057\u3066\u3044\u308b\uff1b; <strong>DoH<\/strong> \u30a2\u30d7\u30ea\u3084\u30d6\u30e9\u30a6\u30b6\u3067\u518d\u751f\u3055\u308c\u308b\u3002.<\/li>\n  <li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong> \u306f\u30ea\u30be\u30eb\u30d0\u306e\u30ed\u30b0\u306b\u30b7\u30d5\u30c8\u3059\u308b\uff1b; <strong>\u30dd\u30ea\u30b7\u30fc<\/strong> DNS\u30ea\u30fc\u30af\u3092\u9632\u3050\u3002.<\/li>\n  <li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong> \u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3068\u518d\u5229\u7528\u306b\u3088\u3063\u3066\u3001\u9ad8\u6c34\u6e96\u306f\u7dad\u6301\u3055\u308c\u308b\uff1b; <strong>\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc<\/strong> \u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3084\u3059\u304f\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n<h2>DNS\uff1a\u6697\u53f7\u5316\u304c\u91cd\u8981\u306a\u7406\u7531<\/h2>\n\n<p>DNS\u306f\u30c9\u30e1\u30a4\u30f3\u3092IP\u306b\u5909\u63db\u3059\u308b\u304c\u3001\u53e4\u5178\u7684\u306a\u30af\u30a8\u30ea\u306f\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u591a\u304f\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u3064\u3044\u3066\u591a\u304f\u306e\u3053\u3068\u3092\u660e\u3089\u304b\u306b\u3057\u3066\u3057\u307e\u3046\u3002 <strong>\u4f7f\u7528\u884c\u52d5<\/strong>. .\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u308b\u8ab0\u3082\u304c\u3001\u4f8b\u3048\u3070\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u3084\u30de\u30f3\u30fb\u30a4\u30f3\u30fb\u30b6\u30fb\u30df\u30c9\u30eb\u306b\u3088\u3063\u3066\u3001\u30af\u30a8\u30ea\u30fc\u3092\u8aad\u3093\u3060\u308a\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u64cd\u4f5c\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u79c1\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30ea\u30be\u30eb\u30d0\u9593\u306e\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u30d1\u30b9\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u3088\u3046\u306a\u653b\u6483\u3092\u9632\u3044\u3067\u3044\u308b\u3002DoH\u3068DoT\u306f\u3053\u306e\u3088\u3046\u306b\u3001HTTPS\u30a6\u30a7\u30d6\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3068\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u306eDNS\u306e\u9593\u306e\u898b\u904e\u3054\u3055\u308c\u304c\u3061\u306a\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u3066\u3044\u308b\u3002\u3053\u308c\u304c\u3001\u79c1\u304c\u5f37\u5316\u3057\u305f\u65b9\u6cd5\u3067\u3042\u308b\u3002 <strong>\u5b88\u79d8\u7fa9\u52d9<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5927\u304d\u306a\u5909\u66f4\u3092\u52a0\u3048\u308b\u3053\u3068\u306a\u304f\u3001\u5b8c\u5168\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/06\/sichere-hosting-dns-verbindungen-2846.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bDNS over TLS (DoT)<\/h2>\n\n<p>DoT\u306f\u3001\u30dd\u30fc\u30c8853\u4e0a\u3067TLS\u3092\u4ecb\u3057\u3066DNS\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u6697\u53f7\u5316\u3057\u3001\u4ee5\u4e0b\u306eTCP\u63a5\u7d9a\u3092\u4f7f\u7528\u3059\u308b\u3002 <strong>\u63e1\u624b<\/strong>. .\u3053\u308c\u306b\u3088\u308a\u3001\u8a3c\u660e\u66f8\u3092\u4ecb\u3057\u3066DNS\u30b5\u30fc\u30d0\u30fc\u3092\u8a8d\u8b58\u3057\u3001\u7b2c\u4e09\u8005\u304c\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u30af\u30a8\u30ea\u30fc\u3092\u898b\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002DoT\u306f\u3001\u30ed\u30fc\u30ab\u30eb\u30ea\u30be\u30eb\u30d0\u3001\u30a8\u30c3\u30b8\u30eb\u30fc\u30bf\u3001\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u30ea\u30be\u30eb\u30d0\u9593\u306e\u30eb\u30fc\u30c8\u3092\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u306e\u306b\u975e\u5e38\u306b\u6709\u52b9\u3067\u3059\u3002\u5c02\u7528\u30dd\u30fc\u30c8\u306e\u304a\u304b\u3052\u3067\u5206\u96e2\u304c\u5bb9\u6613\u306b\u306a\u308a\u3001\u660e\u78ba\u306a\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u306e\u6069\u6075\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002\u540c\u6642\u306b <strong>\u8aa0\u5b9f\u3055<\/strong> \u307e\u305f\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e\u518d\u5229\u7528\u306b\u3088\u308a\u3001\u518d\u73fe\u53ef\u80fd\u306a\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bDNS over HTTPS (DoH)<\/h2>\n\n<p>DoH\u306fDNS\u3092443\u756a\u30dd\u30fc\u30c8\u306eHTTPS\u3067\u8ee2\u9001\u3057\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30a6\u30a7\u30d6\u30c8\u30f3\u30cd\u30eb\u306b\u96a0\u3059\u3002 <strong>HTTP<\/strong>-\u30ea\u30af\u30a8\u30b9\u30c8\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u901a\u5e38\u306e\u30a6\u30a7\u30d6\u30fb\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u305f\u3081\u3001\u30c7\u30a3\u30fc\u30d7\u30fb\u30d1\u30b1\u30c3\u30c8\u30fb\u30a4\u30f3\u30b9\u30da\u30af\u30b7\u30e7\u30f3\u306f\u3088\u308a\u56f0\u96e3\u306b\u306a\u308b\u3002\u30d6\u30e9\u30a6\u30b6\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b9\u30bf\u30c3\u30af\u306f\u3001\u65e2\u5b58\u306eHTTPS\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001DoH\u3092\u8fc5\u901f\u306b\u7d71\u5408\u3059\u308b\u3002\u30b3\u30f3\u30c6\u30ca\u3084\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u500b\u5225\u306eDNS\u30d1\u30b9\u3092\u958b\u793a\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u76f4\u63a5\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u653b\u6483\u5bfe\u8c61\u304c\u6e1b\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u308b\u3002 <strong>\u30c7\u30fc\u30bf\u4fdd\u8b77<\/strong> \u30c7\u30ea\u30b1\u30fc\u30c8\u306a\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306e\u305f\u3081\u306b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/06\/dnssecuritymeeting8732.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u985e\u4f3c\u70b9\u3068\u4e3b\u306a\u76f8\u9055\u70b9<\/h2>\n\n<p>DoH\u3082DoT\u3082\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u6697\u53f7\u5316\u3057\u3001\u64cd\u4f5c\u304b\u3089\u4fdd\u8b77\u3057\u3001\u53ef\u80fd\u306b\u3059\u308b\u3002 <strong>\u30b5\u30fc\u30d0\u30fcID<\/strong> \u8a3c\u660e\u66f8\u3092\u4ecb\u3057\u3066\u3002DoT\u306f\u3001\u7d14\u7c8b\u306aDNS-in-TLS\u3068\u3057\u3066\u5bb9\u6613\u306b\u8a8d\u8b58\u30fb\u7ba1\u7406\u53ef\u80fd\u306a\u307e\u307e\u3067\u3042\u308b\u3002DoH\u306fHTTPS\u306b\u4f9d\u5b58\u3057\u3001\u65e2\u5b58\u306e\u30a6\u30a7\u30d6\u30b9\u30bf\u30c3\u30af\u306b\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u7d71\u5408\u3055\u308c\u308b\u3002\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001DoT\u306f\u660e\u78ba\u306a\u30dd\u30ea\u30b7\u30fc\u306b\u5f79\u7acb\u3061\u3001DoH\u306f\u30a2\u30d7\u30ea\u95a2\u9023\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u9ad8\u3044\u30b9\u30b3\u30a2\u3092\u7372\u5f97\u3059\u308b\u3002\u79c1\u306f\u3001\u3053\u306e2\u3064\u306e\u65b9\u6cd5\u3092\u6700\u5927\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u308b\u3068\u3053\u308d\u3067\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u307e\u3059\u3002 <strong>\u52b9\u679c<\/strong> \u3092\u5e83\u3052\u305f\u3002.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u7279\u5fb4<\/th>\n      <th>DNS over TLS (DoT)<\/th>\n      <th>DNS over HTTPS (DoH)<\/th>\n      <th>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u5c55\u958b<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>\u8f38\u9001<\/td>\n      <td>TCP\u7d4c\u7531\u306eTLS\u3001\u30dd\u30fc\u30c8 <strong>853<\/strong><\/td>\n      <td>TLS\u7d4c\u7531\u306eHTTPS\u3001\u30dd\u30fc\u30c8 <strong>443<\/strong><\/td>\n      <td>\u30a4\u30f3\u30d5\u30e9\u30d1\u30b9\u3068\u30a2\u30d7\u30ea\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af<\/td>\n    <\/tr>\n    <tr>\n      <td>\u8a8d\u77e5\u5ea6<\/td>\n      <td>\u7c21\u5358\u306b\u533a\u5225\u3067\u304d\u308b<\/td>\n      <td>\u30a6\u30a7\u30d6\u304b\u3089\u5207\u308a\u96e2\u3059\u306e\u306f\u96e3\u3057\u3044<\/td>\n      <td>\u30dd\u30ea\u30b7\u30fc\u306e\u5b9f\u65bd\u3068DPI\u306e\u56de\u907f<\/td>\n    <\/tr>\n    <tr>\n      <td>\u7d71\u5408<\/td>\n      <td>\u30ea\u30be\u30eb\u30d0\u30fc\u3001\u30eb\u30fc\u30bf\u30fc\u30cb\u30a2<\/td>\n      <td>\u30d6\u30e9\u30a6\u30b6\u3001\u30a2\u30d7\u30ea\u6307\u5411<\/td>\n      <td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5236\u5fa1\u3068\u30a2\u30d7\u30ea\u306e\u67d4\u8edf\u6027<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/td>\n      <td>\u30bb\u30f3\u30c8\u30e9\u30eb <strong>\u30ea\u30be\u30eb\u30d0<\/strong>, \u30af\u30ea\u30a2\u30dd\u30fc\u30c8<\/td>\n      <td>HTTP\u30e1\u30c8\u30ea\u30af\u30b9\u3001\u30a2\u30d7\u30ea\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8<\/td>\n      <td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u76e3\u8996\u3068\u30a2\u30d7\u30ea\u306e\u53ef\u89b3\u6e2c\u6027<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u8a73\u7d30\uff1aHTTP\/2\u3001HTTP\/3\u3001DoQ\u306e\u6982\u8981<\/h2>\n\n<p>\u79c1\u306fDoH\u306e\u305f\u3081\u306bHTTP\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3092\u8003\u616e\u306b\u5165\u308c\u3066\u3044\u308b\uff1aHTTP\/2\u306f\u3001\u5358\u4e00\u306eTLS\u63a5\u7d9a\u3092\u4ecb\u3057\u3066\u591a\u91cd\u5316\u3092\u53ef\u80fd\u306b\u3057\u3001\u305d\u306e\u7d50\u679c\u3001\u4ee5\u4e0b\u3092\u524a\u6e1b\u3059\u308b\u3002 <strong>\u30d8\u30c3\u30c9\u30fb\u30aa\u30d6\u30fb\u30e9\u30a4\u30f3<\/strong>-\u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\u306f\u3001HTTP\/3 (QUIC)\u3082\u4f7f\u3063\u3066\u3001\u5f85\u3061\u6642\u9593\u3092\u6ed1\u3089\u304b\u306b\u3057\u3001\u30d1\u30b1\u30c3\u30c8\u30ed\u30b9\u3092\u3088\u308a\u3088\u304f\u5438\u53ce\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u54c1\u8cea\u304c\u5909\u52d5\u3059\u308b\u30a8\u30c3\u30b8\u30bb\u30b0\u30e1\u30f3\u30c8\u3067\u306f\u7279\u306b\u4fa1\u5024\u304c\u3042\u308b\u3002TCP\u306fDoT\u306e\u305f\u3081\u306b\u78ba\u7acb\u3055\u308c\u305f\u307e\u307e\u3067\u3059\u3002\u79c1\u306f\u5b9f\u9a13\u7684\u306bDoQ\uff08DNS over QUIC\uff09\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u3053\u3067\u306fTCP\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306a\u3057\u306e\u77ed\u3044\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u9855\u8457\u306b\u5f79\u7acb\u3063\u3066\u3044\u307e\u3059\u3002\u79c1\u306f\u3053\u308c\u3089\u306e\u30d1\u30b9\u3092\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u8a08\u753b\u3057\u3001\u4e92\u63db\u6027\u3092\u7dad\u6301\u3067\u304d\u308b\u3088\u3046\u306bDoT\/DoH\u3078\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u6e96\u5099\u3057\u3066\u304a\u304f\u3002.<\/p>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u30fc\uff1a\u8ce2\u660e\u306a\u5229\u7528\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n<p>\u5185\u90e8\u30ea\u30be\u30eb\u30d0\u306f\u4fe1\u983c\u3067\u304d\u308b\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u5bfe\u3057\u3066DoT\u3092\u8a71\u3057\u3001\u30d6\u30e9\u30a6\u30b6\u3084\u30b3\u30f3\u30c6\u30ca\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u3067DoH\u3092\u4f7f\u3046\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u5185\u90e8\u30d1\u30b9\u3092\u5236\u5fa1\u53ef\u80fd\u306b\u4fdd\u3061\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bHTTPS\u30d9\u30fc\u30b9\u306e <strong>DNS<\/strong>-\u30c1\u30e3\u30f3\u30cd\u30eb\u3002\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3067\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u4ed6\u306e\u4eba\u306e\u30c7\u30fc\u30bf\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3001\u30ea\u30be\u30eb\u30d0\u304c\u5206\u96e2\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3002\u30a8\u30c3\u30b8\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u3092\u77ed\u304f\u4fdd\u3064\u305f\u3081\u306b\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3002\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3068\u30d7\u30ed\u30ad\u30b7\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u306b\u95a2\u3059\u308b\u5b9f\u8df5\u7684\u306a\u30d2\u30f3\u30c8\u306f\u3001\u4ee5\u4e0b\u306e\u30b5\u30a4\u30c8\u306b\u3042\u308b\u3002 <a href=\"https:\/\/webhosting.de\/ja\/dns-over-https-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%81%ae%e3%83%92%e3%83%b3%e3%83%88%e3%82%ac%e3%82%a4%e3%83%89-%e3%83%97%e3%83%ad%e3%82%ad%e3%82%b7\/\">DoH\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30ac\u30a4\u30c9<\/a>, \u3053\u308c\u306f\u3001\u79c1\u304c\u81ea\u5206\u306e\u914d\u5099\u3092\u88dc\u8db3\u3059\u308b\u305f\u3081\u306b\u4f7f\u3063\u3066\u3044\u308b\u3082\u306e\u3067\u3042\u308b\u3002 <strong>\u30dd\u30ea\u30b7\u30fc<\/strong> \u30b3\u30cd\u30af\u30c8.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/06\/dns-sicherheit-hosting-7421.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30af\u30ea\u30fc\u30f3\u306a\u8a3c\u660e\u66f8\u3068\u4fe1\u983c\u30e2\u30c7\u30eb\u3092\u8a2d\u5b9a\u3059\u308b<\/h2>\n\n<p>\u79c1\u306f\u65e5\u548c\u898b\u7684\u306a\u6697\u53f7\u5316\u3068\u53b3\u683c\u306a\u6697\u53f7\u5316\u3092\u53b3\u5bc6\u306b\u533a\u5225\u3057\u3066\u3044\u308b\u3002\u53b3\u5bc6\u3068\u306f <strong>\u30db\u30b9\u30c8\u540d<\/strong> \u8a3c\u660e\u66f8\uff08SAN \u3092\u542b\u3080\uff09\u306b\u5bfe\u3059\u308b\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u30fb\u30ea\u30be\u30eb\u30d0\u306e\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8\u3092\u6587\u66f8\u5316\u3059\u308b\u3002\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001ACME\u304c\u81ea\u52d5\u5316\u3057\u305f\u8a3c\u660e\u66f8\u307e\u305f\u306f\u72ec\u81ea\u306ePKI\u306b\u4f9d\u5b58\u3057\u3001\u5b9a\u671f\u7684\u306b\u9375\u3092\u30ed\u30fc\u30c6\u30fc\u30c8\u3057\u3001\u5931\u52b9\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u7279\u306b\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u30d1\u30b9\u306e\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u3060\u3051\u3067\u306a\u304f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3082\u8a8d\u8a3c\u3059\u308b\u305f\u3081\u3001\u5185\u90e8\u30ea\u30be\u30eb\u30d0\u30fc\u9593\u306emTLS\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u3002TLS 1.3\u306b\u6ce8\u610f\u3092\u6255\u3044\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b\u3092\u6709\u52b9\u306b\u3057\u3001\u7e70\u308a\u8fd4\u3057\u304c\u53ef\u80fd\u306a\u306e\u30670-RTT\u3092\u63a7\u3048\u3081\u306b\u4f7f\u7528\u3059\u308b\u3002DNS\u30af\u30a8\u30ea\u30fc\u306f\u5076\u767a\u7684\u306a\u3082\u306e\u3060\u304c\u3001\u305d\u308c\u3067\u3082\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u7ba1\u7406\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u9664\u5916\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>DNSSEC\u3068\u691c\u8a3c\u306f\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u6697\u53f7\u5316\u3092\u88dc\u5b8c\u3059\u308b<\/h2>\n\n<p>\u6697\u53f7\u5316\u3055\u308c\u305f\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u306f\u3001\u4e0d\u6b63\u306a\u8aad\u307f\u53d6\u308a\u3092\u9632\u304e\u307e\u3059\u3002 <strong>\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5b8c\u5168\u6027<\/strong> \u307e\u305f\u3001DNSSEC\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3082\u78ba\u4fdd\u3057\u3066\u3044\u307e\u3059\u3002\u518d\u5e30\u30ea\u30be\u30eb\u30d0\u3067\u691c\u8a3c\u3092\u6709\u52b9\u306b\u3057\u3001\u30eb\u30fc\u30c8\u30c8\u30e9\u30b9\u30c8\u30a2\u30f3\u30ab\u30fc\u3092\u81ea\u52d5\u7684\u306b\u7dad\u6301\u3057\uff08RFC 5011\uff09\u3001RRSIG\u306e\u30a8\u30e9\u30fc\u7387\u3092\u76e3\u8996\u3057\u3066\u3044\u308b\u3002\u691c\u8a3c\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3001\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u304c\u518d\u3073\u4e00\u8cab\u6027\u3092\u53d6\u308a\u623b\u3059\u307e\u3067\u3001\u300cserve-stale\u300d\u3067\u4e00\u6642\u7684\u306b\u65e2\u77e5\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u6e21\u3059\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30e9\u30a4\u30f3\u3092\u653e\u68c4\u3059\u308b\u3053\u3068\u306a\u304f\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3067\u304d\u308b\u3002\u79c1\u81ea\u8eab\u304c\u904b\u7528\u3059\u308b\u30be\u30fc\u30f3\u306b\u3064\u3044\u3066\u306f\u3001\u4e00\u8cab\u3057\u3066\u7f72\u540d\u3057\u3001TTL\u3092\u30ed\u30fc\u30eb\u30aa\u30fc\u30d0\u30fc\u3068\u4e00\u81f4\u3055\u305b\u3001\u30ad\u30fc\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u304d\u308c\u3044\u306b\u6587\u66f8\u5316\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>\u30b9\u30d7\u30ea\u30c3\u30c8\u30db\u30e9\u30a4\u30ba\u30f3\u3001\u30dd\u30ea\u30b7\u30fc\u3001\u30d6\u30e9\u30a6\u30b6\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/h2>\n\n<p>\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3001\u5185\u90e8\u30ea\u30be\u30eb\u30d0\u3092\u4ecb\u3057\u3066\u306e\u307f\u5185\u90e8\u30cd\u30fc\u30e0\u30b9\u30da\u30fc\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3001DNS\u30ea\u30fc\u30af\u3092\u56de\u907f\u3057\u3066\u3044\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u3084\u30a2\u30d7\u30ea\u3092\u7279\u5225\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u308b\uff1a\u5185\u90e8DoH\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u53c2\u7167\u3059\u308b\u304b\u3001\u30dd\u30ea\u30b7\u30fc\u3067\u975e\u30b7\u30b9\u30c6\u30e0\u30ea\u30be\u30eb\u30d0\u3092\u7981\u6b62\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30b9\u30d7\u30ea\u30c3\u30c8\u30db\u30e9\u30a4\u30ba\u30f3\u30be\u30fc\u30f3\uff08\u4f8b\u3048\u3070intern.example\uff09\u304c\u610f\u56f3\u305b\u305a\u30d1\u30d6\u30ea\u30c3\u30afDoH\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u7d4c\u7531\u3067\u89e3\u6c7a\u3055\u308c\u308b\u3053\u3068\u304c\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u30d6\u30ec\u30a4\u30af\u30b0\u30e9\u30b9\u300d\u30b1\u30fc\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u7ba1\u7406\u3055\u308c\u305f\u65b9\u6cd5\u3068\u9650\u3089\u308c\u305f\u6642\u9593\u3067\u306e\u307f\u8d77\u52d5\u3067\u304d\u308b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u6587\u66f8\u5316\u3057\u3066\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>Kubernetes\u3068\u30b3\u30f3\u30c6\u30ca\u5b9f\u8df5\u306e\u6df1\u5316<\/h2>\n\n<p>CoreDNS\u306f\u30b5\u30fc\u30d3\u30b9\u30c7\u30a3\u30b9\u30ab\u30d0\u30ea\u306e\u30cf\u30d6\u3067\u3042\u308a\u7d9a\u3051\u3001\u79c1\u306f <strong>\u4e0a\u6d41<\/strong> CoreDNS\u304b\u3089DoT\/DoH\u3078\u3002\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u304c\u91cd\u8981\u306a\u5834\u5408\u306f\u3001NodeLocal DNSCache\u3092\u4f7f\u7528\u3057\u3066\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u3092\u30dd\u30c3\u30c9\u306b\u8fd1\u3044\u5834\u6240\u306b\u7dad\u6301\u3057\u307e\u3059\u3002\u53b3\u5bc6\u306a\u5236\u7d04\u304c\u3042\u308b\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3067\u306f\u3001\u30ed\u30fc\u30ab\u30eb\u3067UDP\/TCP\u3092\u53d7\u3051\u5165\u308c\u3001\u6697\u53f7\u5316\u3055\u308c\u305f\u5f62\u3067\u8ee2\u9001\u3059\u308b\u30b5\u30a4\u30c9\u30ab\u30fc\u30ea\u30be\u30eb\u30d0\u3067DoH\/DoT\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u307e\u3059\u3002\u30af\u30a8\u30ea\u306e\u7206\u767a\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u30dd\u30c3\u30c9\u306eDNSConfig\uff08ndots\u3001\u691c\u7d22\u30b5\u30d5\u30a3\u30c3\u30af\u30b9\uff09\u3092\u6587\u66f8\u5316\u3057\u3001\u672c\u756a\u7a3c\u52d5\u524d\u306b\u5408\u6210\u30af\u30a8\u30ea\u3067\u8ca0\u8377\u30d4\u30fc\u30af\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u3068TTL\u8a2d\u8a08<\/h2>\n\n<p>\u6700\u9069\u5316\u3059\u308b <strong>\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong>\u4eba\u6c17\u306e\u3042\u308b\u30ec\u30b3\u30fc\u30c9\u306e\u4e8b\u524d\u30d5\u30a7\u30c3\u30c1\u3067\u52b9\u7387\u3092\u4e0a\u3052\u3001\u300cserve-stale\u300d\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u77ed\u6642\u9593\u306e\u4e2d\u65ad(\u6642\u9593\u5236\u9650\u3042\u308a)\u306e\u5834\u5408\u306b\u671f\u9650\u5207\u308c\u30a8\u30f3\u30c8\u30ea\u304b\u3089\u306e\u5fdc\u7b54\u3092\u63d0\u4f9b\u3059\u308b\u3002\u30cd\u30ac\u30c6\u30a3\u30d6\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u5b58\u5728\u3057\u306a\u3044\u540d\u524d\u306e\u65b0\u898f\u89e3\u6c7a\u3092\u9632\u6b62\u3059\u308b\uff08RFC 2308\uff09\u3002TTL\u306f\u3001\u52d5\u7684\u306a\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u77ed\u304f\u3001\u5b89\u5b9a\u3057\u305f\u30ec\u30b3\u30fc\u30c9\u3067\u306f\u9577\u304f\u3059\u308b\u306a\u3069\u3001\u533a\u5225\u3057\u3066\u8a2d\u8a08\u3057\u3066\u3044\u307e\u3059\u3002\u4e0d\u8981\u306a\u60c5\u5831\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u30af\u30a8\u30ea\u306e\u6700\u5c0f\u5316\u3092\u4f7f\u7528\u3057\u3001\u30c7\u30fc\u30bf\u4fdd\u8b77\u3092\u6700\u512a\u5148\u3059\u308b\u5834\u5408\u306fEDNS\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u3057\u307e\u3059\u3002\u30b8\u30aa\u30fb\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u7279\u306bECS\u3092\u9078\u629e\u3057\u3001\u4ed8\u52a0\u4fa1\u5024\u304c\u8ffd\u52a0\u306e\u30c7\u30fc\u30bf\u6d41\u51fa\u3092\u6b63\u5f53\u5316\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002.<\/p>\n\n<h2>\u30ec\u30b8\u30ea\u30a8\u30f3\u30b9\u3001DDoS\u9632\u5fa1\u3001\u30ad\u30e3\u30d1\u30b7\u30c6\u30a3<\/h2>\n\n<p>\u30ec\u30be\u30eb\u30d0\u3092\u6c34\u5e73\u306b\u30b9\u30b1\u30fc\u30eb\u3057\u3001\u6b21\u306e\u3088\u3046\u306b\u8a08\u753b\u3057\u3066\u3044\u308b\u3002 <strong>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8<\/strong>, \u3053\u308c\u306b\u3088\u308a\u3001\u500b\u3005\u306e\u30ce\u30fc\u30c9\u306e\u969c\u5bb3\u304c\u7de9\u548c\u3055\u308c\u308b\u3002\u30ec\u30fc\u30c8\u5236\u9650\u3068\u30c6\u30ca\u30f3\u30c8\u3054\u3068\u306e\u5272\u308a\u5f53\u3066\u306b\u3088\u308a\u3001\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u74b0\u5883\u3067\u306e\u8aa4\u4f7f\u7528\u3092\u9632\u6b62\u3057\u307e\u3059\u3002\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u6642\u9593\u3068\u30a8\u30e9\u30fc\u7387\u306b\u95a2\u3059\u308b\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u306f\u3001\u81ea\u52d5\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\uff08\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u3001HTTP\/2\/3\u306e\u6700\u5927\u540c\u6642\u30b9\u30c8\u30ea\u30fc\u30e0\u6570\uff09\u3068\u30d0\u30c3\u30d5\u30a1\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d0\u30fc\u30b9\u30c8\u3082\u5b89\u5b9a\u7684\u306b\u5438\u53ce\u3067\u304d\u308b\u3088\u3046\u306b\u8abf\u6574\u3057\u3066\u3044\u307e\u3059\u3002\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u30ea\u30be\u30eb\u30d0\u306e\u30d6\u30eb\u30fc\/\u30b0\u30ea\u30fc\u30f3\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u306b\u4f9d\u5b58\u3057\u3001SLO\u30e1\u30c8\u30ea\u30af\u30b9\uff08\u53ef\u7528\u6027\u3001P95\/P99\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\uff09\u3092\u76e3\u8996\u3057\u3001\u6bb5\u968e\u7684\u306b\u5909\u66f4\u3092\u5c55\u958b\u3059\u308b\u3002.<\/p>\n\n<h2>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u5b9f\u8df5\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n\n<ul>\n  <li>TLS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u30a8\u30e9\u30fc\uff1a\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u30db\u30b9\u30c8\u540d\/SAN\u3092\u540c\u671f\u3055\u305b\u3001\u6642\u9593\/\u6642\u523b\u3092\u540c\u671f\u3055\u305b\u308b\u3002.<\/li>\n  <li>HTTP\/3\u306e\u554f\u984c\uff1a\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u4e0a\u306eQUIC\/UDP\u5171\u6709\u3092\u691c\u8a3c\u3059\u308b\u3002\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u5834\u5408\u306fHTTP\/2\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u308b\u3002.<\/li>\n  <li>\u65ad\u7d9a\u7684\u306a\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\uff1a\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\/\u30b5\u30fc\u30d0\u30fc\u9593\u3067\u3001\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u5236\u9650\u3001\u6700\u5927\u30b9\u30c8\u30ea\u30fc\u30e0\u3001\u30a2\u30a4\u30c9\u30eb\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u8abf\u548c\u3055\u305b\u308b\u3002.<\/li>\n  <li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4f4e\u4e0b\uff1a\u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u30ec\u30fc\u30c8\u3001\u30d7\u30ea\u30d5\u30a7\u30c3\u30c1\u30af\u30a9\u30fc\u30bf\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b\u30ec\u30fc\u30c8\u3001TCP\u518d\u9001\u4fe1\u306b\u6ce8\u610f\u3002.<\/li>\n  <li>\u6f0f\u6d29\/\u30dd\u30ea\u30b7\u30fc\u9055\u53cd\uff1a\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u306eDNS\u306b\u5bfe\u3059\u308b\u30eb\u30fc\u30bf\u30fc\u30eb\u30fc\u30eb\u306e\u30c1\u30a7\u30c3\u30af\u3001\u30d6\u30e9\u30a6\u30b6\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5316\u3001\u30a2\u30d7\u30ea\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u76e3\u67fb\u3002.<\/li>\n  <li>DNSSEC\u30a8\u30e9\u30fc\u753b\u50cf\uff1aRRSIG\u306e\u6709\u52b9\u671f\u9650\u3001\u30af\u30ed\u30c3\u30af\u30b9\u30ad\u30e5\u30fc\u3001\u30c8\u30e9\u30b9\u30c8\u30a2\u30f3\u30ab\u30fc\u306e\u66f4\u65b0\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/06\/hosting_sicher_dns_tls_7063.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>DoH\/DoT \u30ea\u30be\u30eb\u30d0\u30fc\u306e\u64cd\u4f5c\uff1a\u5f79\u5272\u3068\u30e2\u30c7\u30eb<\/h2>\n\n<p>\u81ea\u5206\u81ea\u8eab\u306eDoH\/DoT\u30ea\u30be\u30eb\u30d0\u3092\u6301\u3064\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002 <strong>\u30ed\u30ae\u30f3\u30b0<\/strong>, \u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u8a3c\u660e\u66f8\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u30a2\u30af\u30bb\u30b9\u3092\u5236\u9650\u3057\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6709\u52b9\u306b\u3057\u3001\u660e\u78ba\u306a\u4fdd\u5b58\u671f\u9593\u3092\u8a2d\u5b9a\u3059\u308b\u3002\u30ad\u30e3\u30f3\u30d1\u30b9\u3084\u4f01\u696d\u74b0\u5883\u3067\u306f\u3001\u8a3c\u660e\u66f8\u3092\u53b3\u5bc6\u306b\u691c\u8a3c\u3057\u3001\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8\u3092\u6587\u66f8\u5316\u3059\u308b\u3002\u30d1\u30d6\u30ea\u30c3\u30af\u30fb\u30ea\u30be\u30eb\u30d0\u306f\u30a8\u30f3\u30c8\u30ea\u30fc\u30fb\u30dd\u30a4\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u9867\u5ba2\u306f\u72ec\u81ea\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u6301\u3064\u3053\u3068\u304c\u5f97\u7b56\u3067\u3059\u3002\u3053\u3046\u3057\u3066\u79c1\u306f\u3001\u30c7\u30fc\u30bf\u4fdd\u8b77\u3001\u30b7\u30e7\u30fc\u30c8\u30d1\u30b9\u3001\u8ffd\u8de1\u53ef\u80fd\u306a\u30ea\u30be\u30eb\u30d0\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u308b\u3002 <strong>\u76e3\u67fb<\/strong>.<\/p>\n\n<h2>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30c7\u30fc\u30bf\u4fdd\u8b77\u306e\u5074\u9762<\/h2>\n\n<p>\u6697\u53f7\u5316\u3055\u308c\u305fDNS\u306f\u3001\u653b\u6483\u8005\u304c\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u898b\u306a\u304f\u306a\u308b\u305f\u3081\u3001\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30dd\u30a4\u30ba\u30cb\u30f3\u30b0\u3001\u76d7\u8074\u653b\u6483\u3092\u3088\u308a\u56f0\u96e3\u306b\u3057\u307e\u3059\u3002\u79c1\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u3068ID\u3092\u4fdd\u8b77\u3057\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u306e\u305f\u3081\u306bDNSSEC\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u6a19\u7684\u578b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u6642\u306b\u3001\u79c1\u306f\u5927\u898f\u6a21\u306a\u30d1\u30d6\u30ea\u30c3\u30af\u30ea\u30be\u30eb\u30d0\u3067\u8d77\u3053\u308a\u3046\u308b\u96c6\u4e2d\u52b9\u679c\u306b\u6ce8\u610f\u3092\u6255\u3046\u3002\u305d\u3053\u3067\u900f\u660e\u306a <strong>\u30c7\u30fc\u30bf\u4fdd\u8b77<\/strong>-IP\u306e\u5207\u308a\u6368\u3066\u3068\u4fdd\u6301\u306e\u5236\u9650\u3092\u542b\u3080\u30dd\u30ea\u30b7\u30fc\u3002\u8a3a\u65ad\u76ee\u7684\u306e\u305f\u3081\u306b\u3001\u79c1\u306f\u30ea\u30be\u30eb\u30d0\u30fb\u30e1\u30c8\u30ea\u30af\u30b9\u306b\u6d1e\u5bdf\u3092\u79fb\u884c\u3057\u3001\u4ee5\u4e0b\u3092\u4fdd\u6301\u3059\u308b\u3002 <strong>\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3<\/strong> \u5408\u6210\u30c1\u30a7\u30c3\u30af\u3092\u8996\u91ce\u306b\u5165\u308c\u3066.<\/p>\n\n<h2>\u904b\u7528\u4e2d\u306e\u5b9f\u65bd\u30b7\u30ca\u30ea\u30aa<\/h2>\n\n<p>DoT\u30ea\u30be\u30eb\u30d0\u306b\u3064\u3044\u3066\u306f\u3001\u30dd\u30fc\u30c8853\u3092\u8a2d\u5b9a\u3057\u3001\u6709\u52b9\u306a\u8a3c\u660e\u66f8\u3092\u4fdd\u5b58\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u3053\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u7279\u5225\u306b\u8a98\u5c0e\u3059\u308b\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8\u3092\u6587\u66f8\u5316\u3057\u3001\u8a31\u53ef\u3055\u308c\u308b\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u3092\u5b9a\u7fa9\u3057\u3001\u6b21\u306e\u3088\u3046\u306a\u8a08\u753b\u3092\u7acb\u3066\u308b\u3002 <strong>\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc<\/strong>. .\u5916\u90e8\u30ea\u30be\u30eb\u30d0\u3092\u4f7f\u3044\u305f\u3044\u5834\u5408\u306f\u3001\u56fa\u5b9a\u306e\u8a31\u53ef\u30ea\u30b9\u30c8\u3092\u8a2d\u5b9a\u3057\u3001\u660e\u78ba\u306a\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u3067DNS\u30ea\u30fc\u30af\u3092\u9632\u3050\u3002Kubernetes\u3084Docker\u3067\u306f\u3001DoH\/DoT\u3092sidecar\u3084DaemonSet\u3067\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001\u53e4\u5178\u7684\u306aDNS\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3067\u5185\u90e8\u306e\u540d\u524d\u89e3\u6c7a\u3092\u4e00\u8cab\u3055\u305b\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d1\u30b9\u3092\u30af\u30ea\u30a2\u306b\u4fdd\u3061\u306a\u304c\u3089 <strong>\u8f38\u9001<\/strong>-\u30ec\u30a4\u30e4\u30fc\u306f\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/h2>\n\n<p>TLS\u306e\u521d\u671f\u5316\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u304c\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e\u518d\u5229\u7528\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u518d\u958b\u3001\u52b9\u7387\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3088\u3063\u3066\u5f85\u3061\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3066\u3044\u308b\u3002\u6301\u7d9a\u7684\u306a\u63a5\u7d9a\u306f\u4e26\u5217\u30af\u30a8\u30ea\u30fc\u3092\u53ef\u80fd\u306b\u3057\u3001\u5fdc\u7b54\u6642\u9593\u3092\u4e88\u6e2c\u3057\u3084\u3059\u304f\u3057\u307e\u3059\u3002\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u305f\u3081\u306b\u3001\u63a5\u7d9a\u3054\u3068\u306e\u30a8\u30e9\u30fc\u7387\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3001\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u6642\u9593\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u7387\u3092\u8a18\u9332\u3057\u3066\u3044\u308b\u3002 <strong>\u30ea\u30be\u30eb\u30d0<\/strong>. .\u79c1\u306f\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3067\u30ed\u30b0\u3092\u5206\u3051\u3066\u3001\u50be\u5411\u3092\u7d20\u65e9\u304f\u89e3\u91c8\u3057\u3001\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u8996\u899a\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u3055\u307e\u3056\u307e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u3001\u6b21\u306e\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u6545\u969c<\/strong> \u65e9\u3081\u306b\u8a8d\u8b58\u3059\u308b\u3053\u3068\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/06\/entwickler_schreibtisch_1234.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u69cb\u6210\uff1a\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3001\u30eb\u30fc\u30bf\u30fc\u3001\u30b3\u30f3\u30c6\u30ca<\/h2>\n\n<p>\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001\u30b9\u30bf\u30d6\u30ea\u30be\u30eb\u30d0\u3067DoT\/DoH\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5b9a\u7fa9\u3055\u308c\u305f\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u8ee2\u9001\u3057\u3066\u3044\u308b\u3002\u30eb\u30fc\u30bf\u30fc\u3067\u306f\u3001\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u306eDNS\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3001\u8ab0\u3082\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044DNS\u3092\u56de\u907f\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u30d6\u30e9\u30a6\u30b6\u306b\u306fDoH\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3057\u3001\u5185\u90e8\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u30ea\u30f3\u30af\u3055\u305b\u308b\u3002\u30b3\u30f3\u30c6\u30ca\u3067\u306f\u3001DoH\/DoT\u3092\u7d42\u4e86\u3059\u308b\u30ed\u30fc\u30ab\u30eb\u30fb\u30d5\u30a9\u30ef\u30fc\u30c0\u30fc\u3092\u4f7f\u3044\u3001\u53e4\u5178\u7684\u306a\u65b9\u6cd5\u3067\u5185\u90e8\u7684\u306b\u89e3\u6c7a\u3059\u308b\u3002\u3055\u3089\u306b <a href=\"https:\/\/webhosting.de\/ja\/dns%e3%82%af%e3%82%a8%e3%83%aa%e6%9c%80%e5%b0%8f%e5%8c%96%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%83%aa%e3%82%be%e3%83%ab%e3%83%90%e3%83%bc%e3%82%ad%e3%83%a3%e3%83%83\/\">DNS\u30af\u30a8\u30ea\u306e\u6700\u5c0f\u5316<\/a> \u6f0f\u6d29\u30c7\u30fc\u30bf\u3092\u6e1b\u3089\u3057\u3001\u6700\u9069\u5316\u3059\u308b\u3002 <strong>\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong> \u3088\u308a\u52b9\u7387\u7684\u306b\u3002.<\/p>\n\n<h2>\u30dd\u30ea\u30b7\u30fc\u3001\u30ed\u30ae\u30f3\u30b0\u3001\u30c7\u30fc\u30bf\u4fdd\u8b77<\/h2>\n\n<p>\u8a31\u53ef\u3055\u308c\u305f\u30ea\u30be\u30eb\u30d0\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u52d5\u4f5c\u3001\u8a3c\u660e\u66f8\u306e\u8981\u4ef6\u3001\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306a\u3069\u3001\u660e\u78ba\u306a\u30eb\u30fc\u30eb\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u30ed\u30b0\u3092\u6700\u5c0f\u9650\u306b\u3057\u3001IP\u3092\u77ed\u304f\u3057\u3001\u5fc5\u9808\u30c7\u30fc\u30bf\u3068\u4efb\u610f\u30c7\u30fc\u30bf\u3092\u5206\u96e2\u3057\u307e\u3059\u3002 <strong>\u8a3a\u65ad<\/strong>-\u30a8\u30f3\u30c8\u30ea\u30fc\u3002\u30b5\u30dd\u30fc\u30c8\u30b1\u30fc\u30b9\u306b\u306f\u3001\u4e00\u6642\u7684\u306a\u3001\u304d\u3081\u7d30\u304b\u304f\u30a2\u30af\u30c6\u30a3\u30d6\u5316\u53ef\u80fd\u306a\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306e\u4fdd\u5b58\u5834\u6240\u3001\u76ee\u7684\u3001\u671f\u9593\u306b\u3064\u3044\u3066\u306f\u9867\u5ba2\u306b\u4f1d\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066 <strong>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9<\/strong> \u305d\u3057\u3066\u4fe1\u983c\u3092\u751f\u307f\u51fa\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/06\/dns-hosting-sicher-5831.png\" alt=\"\" width=\"1536\" 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