{"id":476972,"date":"2023-08-09T09:05:36","date_gmt":"2023-08-09T09:05:36","guid":{"rendered":""},"modified":"2023-09-05T11:13:46","modified_gmt":"2023-09-05T11:13:46","slug":"domain-name-system-dns","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/domain-name-system-dns\/","title":{"rendered":"\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b7\u30b9\u30c6\u30e0 (DNS)"},"content":{"rendered":"

\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2\u3002<\/h2>\n

\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306f\u3001\u73fe\u4ee3\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u6a5f\u80fd\u3092\u652f\u3048\u308b\u57fa\u672c\u7684\u306a\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3067\u3059\u3002\u6025\u901f\u306b\u62e1\u5927\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u7ba1\u7406\u306e\u8907\u96d1\u3055\u306e\u5897\u5927\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u30011980 \u5e74\u4ee3\u521d\u982d\u306b\u521d\u3081\u3066\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002DNS \u304c\u767b\u5834\u3059\u308b\u524d\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306f\u9759\u7684\u306a hosts.txt \u30d5\u30a1\u30a4\u30eb\u306b\u4f9d\u5b58\u3057\u3066\u304a\u308a\u3001\u30db\u30b9\u30c8\u540d\u3092 IP \u30a2\u30c9\u30ec\u30b9\u306b\u624b\u52d5\u3067\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u62e1\u5927\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3059\u3050\u306b\u7ba1\u7406\u4e0d\u80fd\u306b\u306a\u308a\u3001\u3088\u308a\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u81ea\u52d5\u5316\u3055\u308c\u305f\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

1983 \u5e74\u3001\u30dd\u30fc\u30eb\u30fb\u30e2\u30ab\u30da\u30c8\u30ea\u30b9\u306f RFC 882 \u3067 DNS \u306e\u6982\u5ff5\u3092\u63d0\u6848\u3057\u3001\u6700\u521d\u306e\u5b9f\u88c5\u306f RFC 883 \u3067\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u3089 2 \u3064\u306e\u6587\u66f8\u306f\u3001\u4eca\u65e5\u77e5\u3089\u308c\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0\u306e\u57fa\u790e\u3092\u7bc9\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u30011985 \u5e74\u306b\u56fd\u7acb\u79d1\u5b66\u8ca1\u56e3 (NSF) \u304c\u6700\u521d\u306e\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u3092\u958b\u767a\u3057\u305f\u3068\u304d\u306b\u5b8c\u5168\u306b\u904b\u7528\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831\u3002\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u30c8\u30d4\u30c3\u30af\u3092\u62e1\u5f35\u3057\u307e\u3059\u3002<\/h2>\n

\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306f\u3001\u30e6\u30fc\u30b6\u30fc \u30d5\u30ec\u30f3\u30c9\u30ea\u306a\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u6570\u5024\u306e IP \u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u968e\u5c64\u578b\u5206\u6563\u547d\u540d\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u3053\u306e\u5909\u63db\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u901a\u4fe1\u3092\u53ef\u80fd\u306b\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002DNS \u304c\u306a\u3051\u308c\u3070\u3001\u30e6\u30fc\u30b6\u30fc\u306f Web \u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d3\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306b\u3001\u9577\u304f\u3066\u8907\u96d1\u306a IP \u30a2\u30c9\u30ec\u30b9\u3092\u899a\u3048\u3066\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

DNS \u306f\u5206\u6563\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30e2\u30c7\u30eb\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u3059\u3079\u3066\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u30ec\u30b3\u30fc\u30c9\u3092\u5358\u4e00\u306e\u4e2d\u592e\u30ea\u30dd\u30b8\u30c8\u30ea\u3067\u7ba1\u7406\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u3001DNS \u306f\u4e16\u754c\u4e2d\u306e\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc (DNS \u30b5\u30fc\u30d0\u30fc\u307e\u305f\u306f\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u3068\u547c\u3070\u308c\u308b) \u306b\u5206\u6563\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d0\u30fc\u306f\u968e\u5c64\u69cb\u9020\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u89e3\u6c7a\u3092\u52b9\u7387\u7684\u304b\u3064\u78ba\u5b9f\u306b\u3057\u307e\u3059\u3002<\/p>\n

DNS \u30b7\u30b9\u30c6\u30e0\u306e\u4e3b\u8981\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

    \n
  1. \n

    \u30eb\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc<\/strong>: \u3053\u308c\u3089\u306f\u6700\u9ad8\u30ec\u30d9\u30eb\u306e DNS \u30b5\u30fc\u30d0\u30fc\u3067\u3042\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u7d44\u7e54\u306b\u3088\u3063\u3066\u904b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u306f 13 \u30bb\u30c3\u30c8\u3042\u308a\u3001A \u304b\u3089 M \u306e\u30e9\u30d9\u30eb\u304c\u4ed8\u3051\u3089\u308c\u3001\u4e16\u754c\u4e2d\u306b\u5206\u6563\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u306f\u3001\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb \u30c9\u30e1\u30a4\u30f3 (TLD) \u3068\u305d\u306e\u6a29\u9650\u306e\u3042\u308b\u30b5\u30fc\u30d0\u30fc\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n

  2. \n

    \u30c8\u30c3\u30d7\u30ec\u30d9\u30eb\u30c9\u30e1\u30a4\u30f3 (TLD)<\/strong>: \u3053\u308c\u3089\u306f\u3001.com\u3001.org\u3001.net\u3001\u304a\u3088\u3073 .us \u3084 .uk \u306a\u3069\u306e\u56fd\u30b3\u30fc\u30c9 TLD \u306a\u3069\u306e\u53f3\u7aef\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u30bb\u30b0\u30e1\u30f3\u30c8\u3067\u3059\u3002\u5404 TLD \u306b\u306f\u3001\u6b21\u306e\u30ec\u30d9\u30eb\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u6a29\u9650\u306e\u3042\u308b\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306e\u30bb\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

  3. \n

    \u6a29\u5a01\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc<\/strong>: \u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306e DNS \u30ec\u30b3\u30fc\u30c9\u3092\u4fdd\u5b58\u304a\u3088\u3073\u63d0\u4f9b\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u300cexample.com\u300d\u306e\u6a29\u5a01\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

  4. \n

    \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u30fc<\/strong>: \u3053\u308c\u3089\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30b5\u30fc\u30d3\u30b9 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc (ISP) \u307e\u305f\u306f\u305d\u306e\u4ed6\u306e\u7d44\u7e54\u306b\u3088\u3063\u3066\u904b\u55b6\u3055\u308c\u308b DNS \u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c DNS \u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u518d\u5e30\u30ea\u30be\u30eb\u30d0\u30fc\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u4ee3\u308f\u3063\u3066\u9069\u5207\u306a\u6a29\u9650\u306e\u3042\u308b\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u304b\u3089 DNS \u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u5185\u90e8\u69cb\u9020\u3002\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u4ed5\u7d44\u307f\u3002<\/h2>\n

    DNS \u30b7\u30b9\u30c6\u30e0\u306f\u3001\u968e\u5c64\u69cb\u9020\u3092\u4f7f\u7528\u3057\u3066\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u7ba1\u7406\u304a\u3088\u3073\u89e3\u6c7a\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c Web \u30d6\u30e9\u30a6\u30b6\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u6b21\u306e\u624b\u9806\u304c\u5b9f\u884c\u3055\u308c\u3001\u30c9\u30e1\u30a4\u30f3\u304c IP \u30a2\u30c9\u30ec\u30b9\u306b\u89e3\u6c7a\u3055\u308c\u307e\u3059\u3002<\/p>\n

      \n
    1. \n

      \u30b9\u30c6\u30c3\u30d71: \u30ed\u30fc\u30ab\u30eb\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong>: \u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u307e\u305a\u30ed\u30fc\u30ab\u30eb \u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u6700\u8fd1\u30a2\u30af\u30bb\u30b9\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u306e IP \u30a2\u30c9\u30ec\u30b9\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u5185\u306b\u898b\u3064\u304b\u3063\u305f\u5834\u5408\u3001\u89e3\u6c7a\u30d7\u30ed\u30bb\u30b9\u306f\u7d42\u4e86\u3057\u3001Web \u30b5\u30a4\u30c8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

    2. \n

      \u30b9\u30c6\u30c3\u30d72: \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u3078\u306e\u63a5\u7d9a<\/strong>: \u30c9\u30e1\u30a4\u30f3\u306e IP \u30a2\u30c9\u30ec\u30b9\u304c\u30ed\u30fc\u30ab\u30eb \u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u306a\u3044\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u518d\u5e30\u30ea\u30be\u30eb\u30d0 (\u901a\u5e38\u306f ISP \u306b\u3088\u3063\u3066\u64cd\u4f5c\u3055\u308c\u308b) \u306b DNS \u30af\u30a8\u30ea\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    3. \n

      \u30b9\u30c6\u30c3\u30d73: \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u30af\u30a8\u30ea<\/strong>: \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u306f DNS \u30af\u30a8\u30ea\u3092\u51e6\u7406\u3057\u3001\u89e3\u6c7a\u30d7\u30ed\u30bb\u30b9\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u307e\u305a\u3001\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u306e 1 \u3064\u306b\u63a5\u7d9a\u3057\u3066\u3001\u3069\u306e TLD \u30b5\u30fc\u30d0\u30fc\u304c\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3057\u3066\u6a29\u9650\u3092\u6301\u3063\u3066\u3044\u308b\u304b\u3092\u8abf\u3079\u307e\u3059\u3002<\/p>\n<\/li>\n

    4. \n

      \u30b9\u30c6\u30c3\u30d74: TLD\u30b5\u30fc\u30d0\u30fc\u306e\u30af\u30a8\u30ea<\/strong>: \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u306f\u9069\u5207\u306a TLD \u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3057\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u6a29\u9650\u306e\u3042\u308b\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    5. \n

      \u30b9\u30c6\u30c3\u30d75: \u6a29\u5a01\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30af\u30a8\u30ea<\/strong>: \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u6a29\u5a01\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306b\u554f\u3044\u5408\u308f\u305b\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f\u7279\u5b9a\u306e IP \u30a2\u30c9\u30ec\u30b9\u3092\u8981\u6c42\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    6. \n

      \u30b9\u30c6\u30c3\u30d76: \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u3078\u306e\u5fdc\u7b54<\/strong>: \u6a29\u5a01\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306e IP \u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u3066\u518d\u5e30\u30ea\u30be\u30eb\u30d0\u306b\u5fdc\u7b54\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    7. \n

      \u30b9\u30c6\u30c3\u30d77: \u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5fdc\u7b54<\/strong>: \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u306f IP \u30a2\u30c9\u30ec\u30b9\u3092\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u9001\u308a\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    8. \n

      \u30b9\u30c6\u30c3\u30d78: \u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/strong>: IP \u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u306f Web \u30b5\u30a4\u30c8\u3092\u30db\u30b9\u30c8\u3057\u3066\u3044\u308b Web \u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3057\u3001Web \u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

      DNS \u89e3\u6c7a\u306f\u9ad8\u901f\u304b\u3064\u52b9\u7387\u7684\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u70b9\u306b\u6ce8\u610f\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u591a\u304f\u306e DNS \u30b5\u30fc\u30d0\u30fc\u306f\u3001DNS \u30ec\u30b3\u30fc\u30c9\u3092\u4e00\u6642\u7684\u306b\u4fdd\u5b58\u3059\u308b\u30ad\u30e3\u30c3\u30b7\u30e5 \u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u30c9\u30e1\u30a4\u30f3\u306b\u3064\u3044\u3066\u6a29\u5a01\u30b5\u30fc\u30d0\u30fc\u306b\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u6027\u3092\u8efd\u6e1b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

      \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u4e3b\u306a\u6a5f\u80fd\u306e\u5206\u6790\u3002<\/h2>\n

      \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306f\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u3092\u5099\u3048\u305f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002<\/p>\n

        \n
      1. \n

        \u968e\u5c64\u69cb\u9020<\/strong>: DNS \u306f\u968e\u5c64\u7684\u306a\u547d\u540d\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u62e1\u5f35\u6027\u3068\u7ba1\u7406\u6027\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u968e\u5c64\u306b\u306f\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u3001TLD\u3001\u6a29\u5a01\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u4f5c\u696d\u8ca0\u8377\u3092\u5206\u6563\u3057\u3066\u52b9\u7387\u7684\u306a\u30c9\u30e1\u30a4\u30f3\u89e3\u6c7a\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

      2. \n

        \u5206\u6563\u5316<\/strong>: DNS \u306f\u5206\u6563\u7684\u306b\u52d5\u4f5c\u3057\u3001\u5358\u4e00\u969c\u5bb3\u70b9\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u5206\u6563\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3088\u308a\u3001\u9ad8\u3044\u53ef\u7528\u6027\u3068\u30d5\u30a9\u30fc\u30eb\u30c8 \u30c8\u30ec\u30e9\u30f3\u30b9\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

      3. \n

        \u30ad\u30e3\u30c3\u30b7\u30e5\u30e1\u30ab\u30cb\u30ba\u30e0<\/strong>: DNS \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u4ee5\u524d\u306b\u89e3\u6c7a\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u4e00\u6642\u7684\u306b\u4fdd\u5b58\u3059\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30af\u30a8\u30ea\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u3001\u6a29\u5a01\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

      4. \n

        \u5197\u9577\u6027<\/strong>: \u8907\u6570\u306e DNS \u30b5\u30fc\u30d0\u30fc\u304c DNS \u968e\u5c64\u306e\u5404\u30ec\u30d9\u30eb\u3092\u62c5\u5f53\u3057\u3001\u6f5c\u5728\u7684\u306a\u505c\u6b62\u306b\u5bfe\u3059\u308b\u5197\u9577\u6027\u3068\u56de\u5fa9\u529b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

      5. \n

        \u4e16\u754c\u7684\u306a\u30ab\u30d0\u30ec\u30c3\u30b8<\/strong>: DNS \u30b5\u30fc\u30d0\u30fc\u306f\u4e16\u754c\u4e2d\u306b\u5206\u6563\u3055\u308c\u3066\u304a\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u5730\u7406\u7684\u306a\u5834\u6240\u306e\u30e6\u30fc\u30b6\u30fc\u304c Web \u30b5\u30a4\u30c8\u306b\u52b9\u7387\u7684\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

      6. \n

        \u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/strong>DNS \u30b7\u30b9\u30c6\u30e0\u306f\u3001\u65b0\u3057\u3044\u30c9\u30e1\u30a4\u30f3\u304c\u5b9a\u671f\u7684\u306b\u8ffd\u52a0\u3055\u308c\u3001\u62e1\u5927\u3057\u7d9a\u3051\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u3069\u306e\u3088\u3046\u306a\u7a2e\u985e\u306e\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u304c\u5b58\u5728\u3059\u308b\u304b\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002\u8a18\u8ff0\u306b\u306f\u8868\u3068\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/h2>\n

        \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306f\u3001\u3055\u307e\u3056\u307e\u306a\u57fa\u6e96\u306b\u57fa\u3065\u3044\u3066\u5206\u985e\u3067\u304d\u307e\u3059\u3002DNS \u306e\u4e3b\u306a\u7a2e\u985e\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

        \u6a5f\u80fd\u306b\u57fa\u3065\u304f:<\/h3>\n
          \n
        1. \n

          \u6a29\u5a01DNS<\/strong>: \u3053\u308c\u3089\u306e DNS \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u516c\u5f0f DNS \u30ec\u30b3\u30fc\u30c9\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002\u7ba1\u7406\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u306e\u30af\u30a8\u30ea\u306b\u5fdc\u7b54\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n

        2. \n

          \u518d\u5e30DNS<\/strong>: \u30ad\u30e3\u30c3\u30b7\u30e5 DNS \u30b5\u30fc\u30d0\u30fc\u3068\u3082\u547c\u3070\u308c\u308b\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u4ee3\u308f\u3063\u3066 DNS \u30af\u30a8\u30ea\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u6a29\u5a01\u30b5\u30fc\u30d0\u30fc\u304b\u3089 DNS \u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3057\u3001\u305d\u308c\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u3001\u5c06\u6765\u306e\u30af\u30a8\u30ea\u3092\u9ad8\u901f\u5316\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u5c55\u958b\u306b\u57fa\u3065\u304f:<\/h3>\n
            \n
          1. \n

            \u30d1\u30d6\u30ea\u30c3\u30afDNS<\/strong>: ISP\u3001\u7d44\u7e54\u3001\u307e\u305f\u306f\u30d1\u30d6\u30ea\u30c3\u30af DNS \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306b\u3088\u3063\u3066\u904b\u55b6\u3055\u308c\u308b\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u8ab0\u3067\u3082\u30a2\u30af\u30bb\u30b9\u3067\u304d\u3001\u4e00\u822c\u7684\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30a2\u30af\u30bb\u30b9\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

          2. \n

            \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8DNS<\/strong>: \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306b\u5c55\u958b\u3055\u308c\u308b\u3053\u308c\u3089\u306e DNS \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u5185\u90e8\u306e\u540d\u524d\u89e3\u6c7a\u306b\u4f7f\u7528\u3055\u308c\u3001\u30d1\u30d6\u30ea\u30c3\u30af \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304b\u3089\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u57fa\u3065\u304f:<\/h3>\n
              \n
            1. \n

              DNSSEC (\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b7\u30b9\u30c6\u30e0\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62e1\u5f35)<\/strong>: DNS \u5fdc\u7b54\u306e\u4fe1\u983c\u6027\u3068\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3067\u3001DNS \u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5c64\u3092\u8ffd\u52a0\u3059\u308b\u62e1\u5f35\u6a5f\u80fd\u30b9\u30a4\u30fc\u30c8\u3002<\/p>\n<\/li>\n

            2. \n

              DNS over HTTPS (DoH)<\/strong>: HTTPS \u3092\u4f7f\u7528\u3057\u3066 DNS \u30af\u30a8\u30ea\u3092\u6697\u53f7\u5316\u3057\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u5f37\u5316\u3057\u3001DNS \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u76d7\u8074\u3084\u64cd\u4f5c\u3092\u9632\u6b62\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3002<\/p>\n<\/li>\n<\/ol>\n

              \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56\u3002<\/h2>\n

              DNS \u306e\u4f7f\u7528\u65b9\u6cd5:<\/h3>\n
                \n
              1. \n

                \u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9<\/strong>DNS \u306f\u4e3b\u306b\u3001\u4eba\u9593\u304c\u5224\u8aad\u3067\u304d\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u3092 IP \u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u4f7f\u3044\u6163\u308c\u305f\u540d\u524d\u3092\u4f7f\u7528\u3057\u3066 Web \u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

              2. \n

                \u30e1\u30fc\u30eb\u914d\u4fe1<\/strong>: MX (Mail Exchange) \u30ec\u30b3\u30fc\u30c9\u306a\u3069\u306e DNS \u30ec\u30b3\u30fc\u30c9\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u3092\u62c5\u5f53\u3059\u308b\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

              3. \n

                \u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0<\/strong>: DNS \u306f\u3001\u5358\u4e00\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f\u7570\u306a\u308b IP \u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3064\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5206\u6563\u3059\u308b\u3053\u3068\u3067\u3001\u8ca0\u8377\u5206\u6563\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

                \u554f\u984c\u3068\u89e3\u6c7a\u7b56:<\/h3>\n
                  \n
                1. \n

                  DNS \u89e3\u6c7a\u306e\u9045\u5ef6<\/strong>: DNS \u89e3\u6c7a\u304c\u9045\u3044\u3068\u3001Web \u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u9045\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002DNS \u30b5\u30fc\u30d0\u30fc\u306b\u52b9\u7387\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5 \u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u5b9f\u88c5\u3059\u308b\u3068\u3001\u3053\u306e\u554f\u984c\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

                2. \n

                  DNS\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u30dd\u30a4\u30ba\u30cb\u30f3\u30b0<\/strong>: \u653b\u6483\u8005\u306f DNS \u5fdc\u7b54\u3092\u64cd\u4f5c\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u60aa\u610f\u306e\u3042\u308b Web \u30b5\u30a4\u30c8\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002DNSSEC \u3092\u5b9f\u88c5\u3059\u308b\u3068\u3001DNS \u5fdc\u7b54\u306e\u4fe1\u983c\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u3001\u3053\u306e\u3088\u3046\u306a\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

                3. \n

                  DNS \u3078\u306e DDoS \u653b\u6483<\/strong>: DNS \u30b5\u30fc\u30d0\u30fc\u3092\u6a19\u7684\u3068\u3057\u305f\u5206\u6563\u578b\u30b5\u30fc\u30d3\u30b9\u62d2\u5426 (DDoS) \u653b\u6483\u306b\u3088\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30a2\u30af\u30bb\u30b9\u304c\u59a8\u5bb3\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002Anycast \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u63a1\u7528\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5197\u9577\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u3088\u3046\u306a\u653b\u6483\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

                4. \n

                  \u5730\u7406\u7684\u5236\u7d04<\/strong>: \u4e00\u90e8\u306e DNS \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u6240\u5728\u5730\u306b\u57fa\u3065\u3044\u3066\u7570\u306a\u308b IP \u30a2\u30c9\u30ec\u30b9\u3092\u8fd4\u3059\u5834\u5408\u304c\u3042\u308a\u3001Web \u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3057\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (CDN) \u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u6240\u5728\u5730\u306b\u57fa\u3065\u3044\u3066\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u3092\u6700\u9069\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

                  \u4e3b\u306a\u7279\u5fb4\u3084\u305d\u306e\u4ed6\u306e\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03\u3092\u8868\u3084\u30ea\u30b9\u30c8\u306e\u5f62\u5f0f\u3067\u793a\u3057\u307e\u3059\u3002<\/h2>\n\n\n\n\n\n\n\n\n\n\n
                  \u7279\u6027<\/strong><\/th>\n\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b7\u30b9\u30c6\u30e0 (DNS)<\/strong><\/th>\n\u30c0\u30a4\u30ca\u30df\u30c3\u30af DNS (DDNS)<\/strong><\/th>\n\u9006DNS<\/strong><\/th>\n<\/tr>\n<\/thead>\n
                  \u95a2\u6570<\/strong><\/td>\n\u30c9\u30e1\u30a4\u30f3\u540d\u3092 IP \u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/td>\n\u52d5\u7684 IP \u30a2\u30c9\u30ec\u30b9\u3092\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u307e\u3059\u3002<\/td>\nIP \u30a2\u30c9\u30ec\u30b9\u3092\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u89e3\u6c7a\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
                  \u4f7f\u7528\u6cd5<\/strong><\/td>\n\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304a\u3088\u3073\u30b5\u30fc\u30d3\u30b9\u306e\u4e00\u822c\u7684\u306a\u30c9\u30e1\u30a4\u30f3\u89e3\u6c7a\u3002<\/td>\n\u30c7\u30d0\u30a4\u30b9\u306e IP \u30a2\u30c9\u30ec\u30b9\u304c\u983b\u7e41\u306b\u5909\u66f4\u3055\u308c\u308b\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/td>\n\u96fb\u5b50\u30e1\u30fc\u30eb \u30b5\u30fc\u30d0\u30fc\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u76ee\u7684\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n
                  \u8a18\u9332<\/strong><\/td>\nA\u3001AAAA\u3001MX\u3001CNAME \u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30ec\u30b3\u30fc\u30c9\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/td>\n\u901a\u5e38\u3001A \u304a\u3088\u3073 AAAA \u30ec\u30b3\u30fc\u30c9\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/td>\n\u4e3b\u306b PTR \u30ec\u30b3\u30fc\u30c9\u3092\u6271\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n
                  \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/strong><\/td>\n\u30ec\u30b3\u30fc\u30c9\u306f\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u306b\u3088\u3063\u3066\u624b\u52d5\u3067\u7ba1\u7406\u304a\u3088\u3073\u66f4\u65b0\u3055\u308c\u307e\u3059\u3002<\/td>\n\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u307e\u305f\u306f\u30c7\u30d0\u30a4\u30b9\u306b\u3088\u3063\u3066\u81ea\u52d5\u7684\u306b\u66f4\u65b0\u3055\u308c\u307e\u3059\u3002<\/td>\n\u30ec\u30b3\u30fc\u30c9\u306f\u901a\u5e38\u3001IP \u30a2\u30c9\u30ec\u30b9\u306e\u6240\u6709\u8005\u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n
                  \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong><\/td>\n\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u95b2\u89a7\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u914d\u4fe1\u3001\u8ca0\u8377\u5206\u6563\u3002<\/td>\nIP \u30a2\u30c9\u30ec\u30b9\u304c\u5909\u5316\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3078\u306e\u30ea\u30e2\u30fc\u30c8 \u30a2\u30af\u30bb\u30b9\u3002<\/td>\n\u8a8d\u8a3c\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u691c\u8a3c\u3001\u30b9\u30d1\u30e0\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3002<\/td>\n<\/tr>\n
                  \u30d7\u30ed\u30c8\u30b3\u30eb<\/strong><\/td>\n\u4e3b\u306b UDP \u304a\u3088\u3073 TCP \u30dd\u30fc\u30c8 53 \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td>\n\u901a\u5e38\u3001DNS \u304a\u3088\u3073 DHCP \u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/td>\n\u7279\u5b9a\u306e\u30ec\u30b3\u30fc\u30c9 \u30bf\u30a4\u30d7\u3067 DNS \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306b\u95a2\u9023\u3059\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3002<\/h2>\n

                  \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9700\u8981\u306e\u9ad8\u307e\u308a\u306b\u5fdc\u3058\u3066\u9032\u5316\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u5c06\u6765\u306b\u5411\u3051\u305f\u91cd\u8981\u306a\u5c55\u671b\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

                    \n
                  1. \n

                    DNS over TLS (DoT)<\/strong>: DNS over HTTPS \u3068\u540c\u69d8\u306b\u3001DoT \u306f TLS \u3092\u4f7f\u7528\u3057\u3066 DNS \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6697\u53f7\u5316\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u306e\u8ffd\u52a0\u30ec\u30a4\u30e4\u30fc\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

                  2. \n

                    IPv6\u306e\u5c0e\u5165<\/strong>IPv4 \u30a2\u30c9\u30ec\u30b9\u306e\u67af\u6e07\u306b\u4f34\u3044\u3001IPv6 \u306e\u63a1\u7528\u304c\u5897\u52a0\u3057\u3066\u3044\u307e\u3059\u3002DNS \u306f\u3001IPv6 \u30a2\u30c9\u30ec\u30b9\u3092\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3053\u3068\u3067\u3001IPv6 \u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

                  3. \n

                    DNS\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316<\/strong>: DNSSEC \u306e\u5e83\u7bc4\u306a\u63a1\u7528\u3084 DNS \u95a2\u9023\u306e\u653b\u6483\u3092\u963b\u6b62\u3059\u308b\u305f\u3081\u306e\u65b0\u3057\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u958b\u767a\u306a\u3069\u3001DNS \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u305f\u3081\u306e\u7d99\u7d9a\u7684\u306a\u53d6\u308a\u7d44\u307f\u3002<\/p>\n<\/li>\n

                  4. \n

                    DNS \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u62e1\u5f35 (DNS \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc)<\/strong>: DNS \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u306f\u3001DNS \u89e3\u6c7a\u4e2d\u306b\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u3068\u30af\u30a8\u30ea\u60c5\u5831\u304c\u516c\u958b\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u3088\u308a\u78ba\u5b9f\u306b\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n

                  5. \n

                    \u5206\u6563\u578b DNS (\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3)<\/strong>\u4e00\u90e8\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u6280\u8853\u3092\u4f7f\u7528\u3057\u3066\u5206\u6563\u578b DNS \u30b7\u30b9\u30c6\u30e0\u3092\u4f5c\u6210\u3057\u3001\u56de\u5fa9\u529b\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

                    \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3057\u3001\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u3068\u3069\u306e\u3088\u3046\u306b\u95a2\u9023\u4ed8\u3051\u308b\u304b\u3002<\/h2>\n

                    \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068 DNS \u306f\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u304a\u308a\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u3067 DNS \u89e3\u6c7a\u30d7\u30ed\u30bb\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u4f7f\u7528\u65b9\u6cd5\u3084 DNS \u3068\u306e\u95a2\u9023\u4ed8\u3051\u65b9\u6cd5\u306b\u306f\u3001\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

                      \n
                    1. \n

                      DNS\u30af\u30a8\u30ea\u306e\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30ad\u30e3\u30c3\u30b7\u30e5 DNS \u30b5\u30fc\u30d0\u30fc\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001DNS \u30ec\u30b3\u30fc\u30c9\u3092\u4e00\u6642\u7684\u306b\u4fdd\u5b58\u3057\u3066\u3001\u6a29\u5a01\u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u3092\u8efd\u6e1b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

                    2. \n

                      \u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3068\u30b3\u30f3\u30c6\u30f3\u30c4\u30d6\u30ed\u30c3\u30af<\/strong>: \u30d7\u30ed\u30ad\u30b7\u306f DNS \u30d9\u30fc\u30b9\u306e\u30b3\u30f3\u30c6\u30f3\u30c4 \u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u5b9f\u88c5\u3057\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u57fa\u3065\u3044\u3066\u7279\u5b9a\u306e Web \u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u30d6\u30ed\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

                    3. \n

                      \u5730\u7406\u4f4d\u7f6e\u60c5\u5831\u30d9\u30fc\u30b9\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f DNS \u3092\u6d3b\u7528\u3057\u3066\u5730\u7406\u4f4d\u7f6e\u60c5\u5831\u306b\u57fa\u3065\u304f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u5b9f\u884c\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u5730\u7406\u7684\u4f4d\u7f6e\u306b\u57fa\u3065\u3044\u3066\u30e6\u30fc\u30b6\u30fc\u3092\u7570\u306a\u308b\u30b5\u30fc\u30d0\u30fc\u306b\u8a98\u5c0e\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

                    4. \n

                      \u900f\u904e\u7684\u30d7\u30ed\u30ad\u30b7<\/strong>: \u900f\u904e\u30d7\u30ed\u30ad\u30b7\u306f DNS \u8981\u6c42\u3092\u508d\u53d7\u3057\u3066\u8ee2\u9001\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e DNS \u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u5236\u5fa1\u3068\u76e3\u8996\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

                    5. \n

                      \u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u6697\u53f7\u5316\u3055\u308c\u305f\u30c1\u30e3\u30cd\u30eb (DoH \u307e\u305f\u306f DoT) \u3092\u4ecb\u3057\u3066 DNS \u30af\u30a8\u30ea\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u5f37\u5316\u3057\u3001\u76d7\u8074\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

                      \u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n

                      \u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                        \n
                      1. \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6280\u8853\u30bf\u30b9\u30af\u30d5\u30a9\u30fc\u30b9 (IETF) DNS \u4ed5\u69d8<\/a><\/li>\n
                      2. \u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b7\u30b9\u30c6\u30e0\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62e1\u5f35 (DNSSEC)<\/a><\/li>\n
                      3. DNS\u7528\u8a9e\u96c6<\/a><\/li>\n
                      4. DNS\u306e\u7c21\u5358\u306a\u6b74\u53f2<\/a><\/li>\n<\/ol>\n

                        DNS \u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u4e16\u754c\u4e2d\u306e Web \u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30a2\u30af\u30bb\u30b9\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30e6\u30fc\u30b6\u30fc\u3068 Web \u30b5\u30a4\u30c8\u6240\u6709\u8005\u306b\u3068\u3063\u3066 DNS \u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"featured_media":468258,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476972","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Domain Name System (DNS): The Backbone of Internet Navigation<\/mark>","faq_items":[{"question":"What is the Domain Name System (DNS)?","answer":"

                        The Domain Name System (DNS) is a crucial technology that translates user-friendly domain names (e.g., example.com) into numerical IP addresses (e.g., 192.0.2.1). It enables seamless navigation on the internet by allowing users to access websites and services using easy-to-remember domain names.<\/p>"},{"question":"How did the DNS originate?","answer":"

                        The DNS was proposed by Paul Mockapetris in the early 1980s to replace the manual process of mapping hostnames to IP addresses. The first implementation of DNS was introduced in 1983, and it became fully operational in 1985.<\/p>"},{"question":"How does DNS work?","answer":"

                        DNS operates on a hierarchical and decentralized structure. When a user enters a domain name in their web browser, the DNS system follows a multi-step process, involving root servers, TLD servers, and authoritative name servers, to resolve the domain to its corresponding IP address.<\/p>"},{"question":"What are the key features of DNS?","answer":"

                        DNS boasts a hierarchical structure, decentralization, caching mechanisms, redundancy, global coverage, and scalability. These features ensure efficient and reliable domain resolution for the vast internet user base.<\/p>"},{"question":"What types of DNS exist?","answer":"

                        DNS can be classified based on functionality into authoritative DNS and recursive DNS. Based on deployment, it can be public or private. Regarding security, DNSSEC and DNS over HTTPS (DoH) are notable extensions.<\/p>"},{"question":"How is DNS used?","answer":"

                        DNS serves as the backbone for internet navigation, facilitating website access, email delivery, load balancing, and more. It plays a vital role in various applications that require domain-to-IP translation.<\/p>"},{"question":"What are some problems related to DNS and their solutions?","answer":"

                        Common DNS-related issues include resolution delays, DNS spoofing, cache poisoning, and DDoS attacks. Implementing efficient caching mechanisms, DNSSEC, and Anycast routing can help address these problems.<\/p>"},{"question":"What is the future outlook for DNS?","answer":"

                        The future of DNS involves technologies like DNS over TLS (DoT), IPv6 adoption, improved DNS security, DNS Privacy Extensions, and the potential exploration of decentralized DNS using blockchain technology.<\/p>"},{"question":"How are proxy servers associated with DNS?","answer":"

                        Proxy servers are closely related to DNS and can be used for caching DNS queries, content filtering, geolocation-based routing, and enhancing privacy and security during DNS resolution.<\/p>"},{"question":"Where can I find more information about DNS?","answer":"

                        For more in-depth information about the Domain Name System (DNS), you can refer to the Internet Engineering Task Force (IETF) DNS Specifications, Domain Name System Security Extensions (DNSSEC), The DNS Glossary, and a brief history of DNS.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476972\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/468258"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476972"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}