{"id":476914,"date":"2023-08-09T09:05:02","date_gmt":"2023-08-09T09:05:02","guid":{"rendered":""},"modified":"2023-09-05T11:13:39","modified_gmt":"2023-09-05T11:13:39","slug":"dns-propagation","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/dns-propagation\/","title":{"rendered":"DNS \u4f1d\u64ad"},"content":{"rendered":"<p>DNS \u4f1d\u64ad\u306f\u3001DNS \u30b5\u30fc\u30d0\u30fc\u306e\u30b0\u30ed\u30fc\u30d0\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306b DNS \u60c5\u5831\u3092\u914d\u5e03\u304a\u3088\u3073\u66f4\u65b0\u3059\u308b\u3001\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u306e\u57fa\u672c\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u767b\u9332\u3055\u308c\u305f\u308a\u3001\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u306e\u66f4\u65b0\u306a\u3069\u3001DNS \u8a2d\u5b9a\u304c\u5909\u66f4\u3055\u308c\u305f\u308a\u3059\u308b\u3068\u3001\u3053\u308c\u3089\u306e\u5909\u66f4\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u306b\u4f1d\u64ad\u3059\u308b\u307e\u3067\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u4f1d\u64ad\u671f\u9593\u306f\u6570\u5206\u304b\u3089\u6570\u6642\u9593\u3001\u3055\u3089\u306b\u306f\u6570\u65e5\u306b\u53ca\u3076\u5834\u5408\u304c\u3042\u308a\u3001\u305d\u306e\u9593\u3001\u30e6\u30fc\u30b6\u30fc\u306f Web \u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u4e0d\u6574\u5408\u3092\u611f\u3058\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>DNS \u4f1d\u64ad\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2<\/h2>\n<p>DNS \u4f1d\u64ad\u306e\u6982\u5ff5\u306f\u3001DNS \u81ea\u4f53\u306e\u78ba\u7acb\u3068\u6df1\u304f\u95a2\u4fc2\u3057\u3066\u3044\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0\u306f\u30011980 \u5e74\u4ee3\u521d\u982d\u306b Paul V. Mockapetris \u535a\u58eb\u306b\u3088\u3063\u3066\u5c0e\u5165\u3055\u308c\u3001\u6700\u521d\u306e\u5b9f\u88c5\u306f 1983 \u5e74\u306b\u958b\u59cb\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u9593\u306b\u3001DNS \u4f1d\u64ad\u306e\u6982\u5ff5\u306f\u3001DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u5206\u6563\u578b\u304a\u3088\u3073\u975e\u4e2d\u592e\u96c6\u6a29\u578b\u306e\u672c\u8cea\u7684\u306a\u7279\u6027\u3068\u3057\u3066\u767b\u5834\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>DNS \u4f1d\u64ad\u306e\u6700\u521d\u306e\u8a00\u53ca\u306f\u3001\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0\u304c\u307e\u3060\u958b\u767a\u6bb5\u968e\u306b\u3042\u3063\u305f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u521d\u671f\u306e\u9803\u306b\u9061\u308a\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u3069\u3093\u3069\u3093\u767b\u9332\u3055\u308c\u3001DNS \u30b5\u30fc\u30d0\u30fc\u306e\u6570\u304c\u5897\u3048\u308b\u306b\u3064\u308c\u3066\u3001DNS \u66f4\u65b0\u304c\u3059\u3079\u3066\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u4f1d\u64ad\u3059\u308b\u305f\u3081\u306e\u6642\u9593\u67a0\u304c\u5fc5\u8981\u3067\u3042\u308b\u3053\u3068\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>DNS \u4f1d\u64ad\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831: \u30c8\u30d4\u30c3\u30af\u306e\u62e1\u5f35<\/h2>\n<p>DNS \u306e\u4f1d\u64ad\u306b\u306f\u3001\u4e16\u754c\u4e2d\u306e DNS \u30b5\u30fc\u30d0\u30fc\u9593\u3067 DNS \u30ec\u30b3\u30fc\u30c9\u3092\u66f4\u65b0\u304a\u3088\u3073\u540c\u671f\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u306e\u5909\u66f4\u306a\u3069\u3001\u30c9\u30e1\u30a4\u30f3\u306e DNS \u30ec\u30b3\u30fc\u30c9\u306b\u5909\u66f4\u304c\u52a0\u3048\u3089\u308c\u305f\u5834\u5408\u3001\u3053\u306e\u60c5\u5831\u306f\u3059\u3079\u3066\u306e DNS \u30b5\u30fc\u30d0\u30fc\u306b\u914d\u5e03\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002DNS \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u3053\u306e\u60c5\u5831\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3057\u3066\u3001\u30af\u30a8\u30ea\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001DNS \u306e\u5168\u4f53\u7684\u306a\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n<p>\u30e6\u30fc\u30b6\u30fc\u304c Web \u30d6\u30e9\u30a6\u30b6\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u305d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u30ed\u30fc\u30ab\u30eb DNS \u30ea\u30be\u30eb\u30d0\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002\u30ea\u30be\u30eb\u30d0\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306e IP \u30a2\u30c9\u30ec\u30b9\u304c\u3059\u3067\u306b\u5b58\u5728\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u60c5\u5831\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u5b58\u5728\u3057\u306a\u3044\u304b\u3001\u671f\u9650\u5207\u308c\u306e\u5834\u5408\u3001\u30ea\u30be\u30eb\u30d0\u306f\u66f4\u65b0\u3055\u308c\u305f\u60c5\u5831\u3092\u898b\u3064\u3051\u308b\u305f\u3081\u306b DNS \u30af\u30a8\u30ea \u30d7\u30ed\u30bb\u30b9\u3092\u958b\u59cb\u3057\u307e\u3059\u3002<\/p>\n<p>DNS \u30af\u30a8\u30ea\u306f\u3001\u30ea\u30be\u30eb\u30d0\u304c\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3053\u308d\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30ea\u30be\u30eb\u30d0\u3092\u9069\u5207\u306a\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb \u30c9\u30e1\u30a4\u30f3 (TLD) \u30b5\u30fc\u30d0\u30fc\u306b\u53c2\u7167\u3057\u307e\u3059\u3002TLD \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u6b21\u306b\u30ea\u30be\u30eb\u30d0\u3092\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u6a29\u5a01 DNS \u30b5\u30fc\u30d0\u30fc\u306b\u8a98\u5c0e\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u6a29\u5a01 DNS \u30b5\u30fc\u30d0\u30fc\u306f\u66f4\u65b0\u3055\u308c\u305f DNS \u60c5\u5831\u3092\u30ea\u30be\u30eb\u30d0\u306b\u63d0\u4f9b\u3057\u3001\u30ea\u30be\u30eb\u30d0\u306f\u305d\u308c\u3092\u5c06\u6765\u306e\u4f7f\u7528\u306b\u5099\u3048\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<h2>DNS \u4f1d\u64ad\u306e\u5185\u90e8\u69cb\u9020: DNS \u4f1d\u64ad\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>DNS \u4f1d\u64ad\u306f\u3001DNS \u30b7\u30b9\u30c6\u30e0\u306e\u968e\u5c64\u69cb\u9020\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u6b21\u306e\u4e3b\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p>\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc: \u30eb\u30fc\u30c8 \u30be\u30fc\u30f3\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u6700\u9ad8\u30ec\u30d9\u30eb\u306e DNS \u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002\u4e16\u754c\u4e2d\u306b 13 \u30bb\u30c3\u30c8\u306e\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u304c\u5206\u6563\u3057\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u7d44\u7e54\u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d0\u30fc\u306f A \u304b\u3089 M \u306e\u6587\u5b57\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb \u30c9\u30e1\u30a4\u30f3 (TLD) \u30b5\u30fc\u30d0\u30fc: TLD \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb \u30c9\u30e1\u30a4\u30f3 (.com\u3001.org\u3001.net \u306a\u3069) \u306b\u95a2\u3059\u308b DNS \u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002\u5404\u30c9\u30e1\u30a4\u30f3\u306e\u6a29\u9650\u306e\u3042\u308b DNS \u30b5\u30fc\u30d0\u30fc\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u6a29\u5a01 DNS \u30b5\u30fc\u30d0\u30fc: \u3053\u308c\u3089\u306e\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u5b9f\u969b\u306e DNS \u30ec\u30b3\u30fc\u30c9\u3092\u4fdd\u6301\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002\u7ba1\u7406\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30ed\u30fc\u30ab\u30eb DNS \u30ea\u30be\u30eb\u30d0: \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\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u306b\u3088\u3063\u3066\u63d0\u4f9b\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\u30ed\u30fc\u30ab\u30eb DNS \u30ea\u30be\u30eb\u30d0\u306f\u3001\u524d\u8ff0\u306e\u968e\u5c64\u30d7\u30ed\u30bb\u30b9\u306b\u5f93\u3063\u3066\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u89e3\u6c7a\u3057\u3088\u3046\u3068\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>DNS\u4f1d\u64ad\u306e\u4e3b\u306a\u7279\u5fb4\u306e\u5206\u6790<\/h2>\n<p>DNS \u4f1d\u64ad\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p>\u6642\u9593\u9045\u5ef6: DNS \u4f1d\u64ad\u306e\u6700\u3082\u9855\u8457\u306a\u7279\u5fb4\u306f\u3001DNS \u66f4\u65b0\u304c\u3059\u3079\u3066\u306e DNS \u30b5\u30fc\u30d0\u30fc\u306b\u4f1d\u64ad\u3059\u308b\u307e\u3067\u306b\u304b\u304b\u308b\u6642\u9593\u9045\u5ef6\u3067\u3059\u3002\u3053\u306e\u9045\u5ef6\u306f\u3001DNS \u30ec\u30b3\u30fc\u30c9\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b TTL (Time-to-Live) \u5024\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002TTL \u5024\u304c\u77ed\u3044\u307b\u3069\u4f1d\u64ad\u304c\u901f\u304f\u306a\u308a\u3001TTL \u5024\u304c\u9577\u3044\u307b\u3069\u4f1d\u64ad\u6642\u9593\u304c\u9577\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u5373\u6642\u3067\u306f\u306a\u3044\u66f4\u65b0: DNS \u306e\u4f1d\u64ad\u306f\u5373\u6642\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002DNS \u60c5\u5831\u306f\u3055\u307e\u3056\u307e\u306a\u30ec\u30d9\u30eb (\u30ed\u30fc\u30ab\u30eb \u30ea\u30be\u30eb\u30d0\u3001ISP \u30b5\u30fc\u30d0\u30fc\u306a\u3069) \u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u308b\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6700\u65b0\u306e\u60c5\u5831\u306b\u66f4\u65b0\u3055\u308c\u308b\u307e\u3067\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e0d\u4e00\u81f4: \u4f1d\u64ad\u671f\u9593\u4e2d\u3001\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u53e4\u3044 DNS \u60c5\u5831\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u4e00\u65b9\u3067\u3001\u4ed6\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u66f4\u65b0\u3055\u308c\u305f\u60c5\u5831\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001Web \u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30b9\u306b\u4e00\u6642\u7684\u306a\u4e0d\u4e00\u81f4\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>DNS\u4f1d\u64ad\u306e\u7a2e\u985e<\/h2>\n<p>DNS \u4f1d\u64ad\u306b\u306f\u4e3b\u306b 2 \u3064\u306e\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30d7\u30e9\u30a4\u30de\u30ea DNS \u4f1d\u64ad:<\/strong> \u3053\u306e\u30bf\u30a4\u30d7\u306e\u4f1d\u64ad\u306f\u3001\u65b0\u3057\u3044\u30c9\u30e1\u30a4\u30f3\u304c\u767b\u9332\u3055\u308c\u305f\u3068\u304d\u3001\u307e\u305f\u306f\u65e2\u5b58\u306e\u30c9\u30e1\u30a4\u30f3\u306e DNS \u8a2d\u5b9a\u304c\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u6a29\u5a01 DNS \u30b5\u30fc\u30d0\u30fc\u3067 DNS \u30ec\u30b3\u30fc\u30c9\u3092\u66f4\u65b0\u3057\u3001DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u5168\u4f53\u306b\u5909\u66f4\u3092\u914d\u5e03\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30ab\u30f3\u30c0\u30ea DNS \u4f1d\u64ad:<\/strong> \u30bb\u30ab\u30f3\u30c0\u30ea\u4f1d\u64ad\u3068\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u6a29\u5a01 DNS \u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u6700\u65b0\u306e DNS \u60c5\u5831\u3092\u4f7f\u7528\u3057\u3066\u30bb\u30ab\u30f3\u30c0\u30ea DNS \u30b5\u30fc\u30d0\u30fc\u3092\u66f4\u65b0\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3092\u6307\u3057\u307e\u3059\u3002\u30bb\u30ab\u30f3\u30c0\u30ea \u30b5\u30fc\u30d0\u30fc\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u5197\u9577\u6027\u3068\u8ca0\u8377\u5206\u6563\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u30d7\u30e9\u30a4\u30de\u30ea DNS \u4f1d\u64ad\u3068\u30bb\u30ab\u30f3\u30c0\u30ea DNS \u4f1d\u64ad\u306e\u4e3b\u306a\u9055\u3044\u3092\u307e\u3068\u3081\u305f\u8868\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8ca1\u7523<\/th>\n<th>\u30d7\u30e9\u30a4\u30de\u30ea DNS \u4f1d\u64ad<\/th>\n<th>\u30bb\u30ab\u30f3\u30c0\u30ea DNS \u4f1d\u64ad<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5f15\u304d\u91d1<\/td>\n<td>\u65b0\u898f\u30c9\u30e1\u30a4\u30f3\u767b\u9332\u307e\u305f\u306f\u5909\u66f4<\/td>\n<td>\u30d7\u30e9\u30a4\u30de\u30ea\u30b5\u30fc\u30d0\u30fc\u3068\u306e\u540c\u671f<\/td>\n<\/tr>\n<tr>\n<td>\u95a2\u4fc2\u3059\u308b\u30b5\u30fc\u30d0\u30fc<\/td>\n<td>\u6a29\u5a01DNS\u30b5\u30fc\u30d0\u30fc<\/td>\n<td>\u30bb\u30ab\u30f3\u30c0\u30eaDNS\u30b5\u30fc\u30d0\u30fc<\/td>\n<\/tr>\n<tr>\n<td>\u76ee\u7684<\/td>\n<td>\u30d7\u30e9\u30a4\u30de\u30eaDNS\u30ec\u30b3\u30fc\u30c9\u306e\u66f4\u65b0<\/td>\n<td>\u5197\u9577\u6027\u3068\u8ca0\u8377\u5206\u6563<\/td>\n<\/tr>\n<tr>\n<td>\u66f4\u65b0\u983b\u5ea6<\/td>\n<td>\u6642\u3005<\/td>\n<td>\u5b9a\u671f\u7684\u306a\u540c\u671f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS \u30d7\u30ed\u30d1\u30b2\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\u65b9\u6cd5\u3001\u554f\u984c\u3001\u89e3\u6c7a\u7b56<\/h2>\n<h3>DNS \u30d7\u30ed\u30d1\u30b2\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\u65b9\u6cd5:<\/h3>\n<ol>\n<li>\n<p><strong>\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u5909\u66f4:<\/strong> \u30d6\u30e9\u30f3\u30c9\u5909\u66f4\u3084\u305d\u306e\u4ed6\u306e\u7406\u7531\u306b\u3088\u308a\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u5909\u66f4\u3055\u308c\u305f\u5834\u5408\u306f\u3001DNS \u4f1d\u64ad\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>IP \u30a2\u30c9\u30ec\u30b9\u306e\u66f4\u65b0:<\/strong> \u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u65b0\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u307e\u305f\u306f\u30db\u30b9\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306b\u79fb\u52d5\u3059\u308b\u5834\u5408\u3001\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b IP \u30a2\u30c9\u30ec\u30b9\u3092 DNS \u30ec\u30b3\u30fc\u30c9\u3067\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u69cb\u6210:<\/strong> \u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u4f5c\u6210\u307e\u305f\u306f\u5909\u66f4\u3059\u308b\u306b\u306f\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b DNS \u4f1d\u64ad\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u554f\u984c\u3068\u89e3\u6c7a\u7b56:<\/h3>\n<ol>\n<li>\n<p><strong>\u4f1d\u64ad\u9045\u5ef6:<\/strong> DNS \u4f1d\u64ad\u4e2d\u306e\u6642\u9593\u9045\u5ef6\u306b\u3088\u308a\u3001\u4e00\u6642\u7684\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u306b\u3001\u7ba1\u7406\u8005\u306f DNS \u30ec\u30b3\u30fc\u30c9\u306e TTL \u5024\u3092\u77ed\u304f\u8a2d\u5b9a\u3057\u3066\u3001\u66f4\u65b0\u3092\u9ad8\u901f\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u53e4\u3044\u30ad\u30e3\u30c3\u30b7\u30e5:<\/strong> \u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f DNS \u30ec\u30b3\u30fc\u30c9\u304c\u539f\u56e0\u3067\u3001\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u53e4\u3044\u60c5\u5831\u306b\u5f15\u304d\u7d9a\u304d\u30a2\u30af\u30bb\u30b9\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u5074\u3067 DNS \u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u66f4\u65b0\u307e\u305f\u306f\u30af\u30ea\u30a2\u3059\u308b\u3068\u3001\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e0d\u5b8c\u5168\u306a\u4f1d\u64ad:<\/strong> \u307e\u308c\u306b\u3001\u3059\u3079\u3066\u306e DNS \u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u3057\u304f\u66f4\u65b0\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u306f\u901a\u5e38\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u81ea\u7136\u306b\u89e3\u6c7a\u3055\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u7ba1\u7406\u8005\u306f DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u9069\u5207\u306a\u69cb\u6210\u3068\u5197\u9577\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03<\/h2>\n<p>DNS \u4f1d\u64ad\u306e\u4e3b\u306a\u7279\u5fb4\u306e\u30ea\u30b9\u30c8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p>\u56fa\u6709\u306e\u9045\u5ef6: DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u5206\u6563\u7279\u6027\u306b\u3088\u308a\u3001DNS \u4f1d\u64ad\u306b\u306f\u4f1d\u64ad\u9045\u5ef6\u304c\u4f34\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u968e\u5c64\u69cb\u9020: DNS \u4f1d\u64ad\u306f\u3001\u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u3001TLD \u30b5\u30fc\u30d0\u30fc\u3001\u304a\u3088\u3073\u6a29\u9650\u306e\u3042\u308b DNS \u30b5\u30fc\u30d0\u30fc\u306b\u3088\u308b\u968e\u5c64\u69cb\u9020\u306b\u5f93\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5 \u30e1\u30ab\u30cb\u30ba\u30e0: DNS \u30ea\u30be\u30eb\u30d0\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3057\u3066 DNS \u60c5\u5831\u3092\u4fdd\u5b58\u3057\u3001\u30af\u30a8\u30ea\u89e3\u6c7a\u3092\u9ad8\u901f\u5316\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>TTL \u8a2d\u5b9a: DNS \u30ec\u30b3\u30fc\u30c9\u306e Time-to-Live (TTL) \u5024\u306b\u3088\u3063\u3066\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9593\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u5197\u9577\u6027: \u30bb\u30ab\u30f3\u30c0\u30ea DNS \u4f1d\u64ad\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea \u30b5\u30fc\u30d0\u30fc\u3068\u540c\u671f\u3059\u308b\u3053\u3068\u3067\u5197\u9577\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>DNS\u89e3\u6c7a\u3068\u306e\u6bd4\u8f03:<\/h3>\n<p>DNS \u4f1d\u64ad\u306f DNS \u89e3\u6c7a\u3068\u6df7\u540c\u3055\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306f\u7570\u306a\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>DNS \u4f1d\u64ad<\/th>\n<th>DNS\u89e3\u6c7a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u610f\u5473<\/td>\n<td>DNS\u60c5\u5831\u306e\u66f4\u65b0\u3068\u540c\u671f<\/td>\n<td>\u30c9\u30e1\u30a4\u30f3\u540d\u3092IP\u30a2\u30c9\u30ec\u30b9\u306b\u89e3\u6c7a\u3059\u308b\u30d7\u30ed\u30bb\u30b9<\/td>\n<\/tr>\n<tr>\n<td>\u767a\u751f<\/td>\n<td>\u30c9\u30e1\u30a4\u30f3\u767b\u9332\/\u5909\u66f4\u6642\u306b\u767a\u751f<\/td>\n<td>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306eDNS\u30af\u30a8\u30ea\u3054\u3068\u306b\u767a\u751f\u3057\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td>\u76ee\u7684<\/td>\n<td>DNS\u30ec\u30b3\u30fc\u30c9\u3078\u306e\u5909\u66f4\u306e\u914d\u5e03<\/td>\n<td>\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u898b\u3064\u3051\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS\u4f1d\u64ad\u306b\u95a2\u3059\u308b\u4eca\u5f8c\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>DNS \u4f1d\u64ad\u306e\u5c06\u6765\u306f\u3001\u4f1d\u64ad\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u56de\u5fa9\u529b\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u7d99\u7d9a\u7684\u306a\u53d6\u308a\u7d44\u307f\u306b\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u3044\u304f\u3064\u304b\u306e\u8996\u70b9\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u306b\u306f\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8DNS:<\/strong> \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001DNS \u30af\u30a8\u30ea\u3092\u6700\u3082\u8fd1\u3044 DNS \u30b5\u30fc\u30d0\u30fc\u306b\u81ea\u52d5\u7684\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u304d\u308b\u305f\u3081\u3001\u5f85\u3061\u6642\u9593\u3068\u4f1d\u64ad\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>DNSSEC:<\/strong> DNS \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62e1\u5f35\u6a5f\u80fd\u306f\u3001DNS \u30c7\u30fc\u30bf\u306b\u6697\u53f7\u7f72\u540d\u3092\u8ffd\u52a0\u3057\u3066 DNS \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3057\u3001DNS \u30ad\u30e3\u30c3\u30b7\u30e5 \u30dd\u30a4\u30ba\u30cb\u30f3\u30b0\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u30d9\u30fc\u30b9\u306eDNS:<\/strong> \u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u6280\u8853\u306f\u3001DNS \u306b\u5bfe\u3057\u3066\u5206\u6563\u578b\u3067\u5b89\u5168\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63d0\u4f9b\u3057\u3001\u4f1d\u64ad\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3092DNS\u4f1d\u64ad\u306b\u4f7f\u7528\u307e\u305f\u306f\u95a2\u9023\u4ed8\u3051\u308b\u65b9\u6cd5<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u7279\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (CDN) \u3068\u8ca0\u8377\u5206\u6563\u306b\u304a\u3044\u3066\u3001DNS \u4f1d\u64ad\u306e\u5f79\u5272\u3092\u679c\u305f\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002CDN \u306f\u3001\u4e16\u754c\u4e2d\u306b\u6226\u7565\u7684\u306b\u914d\u7f6e\u3055\u308c\u305f\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a8\u30f3\u30c9 \u30e6\u30fc\u30b6\u30fc\u306b\u8fd1\u3044\u5834\u6240\u3067\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u63d0\u4f9b\u3057\u3001DNS \u4f1d\u64ad\u306e\u9045\u5ef6\u306e\u5f71\u97ff\u3092\u8efd\u6e1b\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5206\u6563\u3059\u308b\u8ca0\u8377\u5206\u6563\u88c5\u7f6e\u306f\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u3066 DNS \u30af\u30a8\u30ea\u3092\u51e6\u7406\u3057\u3001\u8fd1\u63a5\u6027\u3001\u5bb9\u91cf\u3001\u307e\u305f\u306f\u305d\u306e\u4ed6\u306e\u8981\u56e0\u306b\u57fa\u3065\u3044\u3066\u30e6\u30fc\u30b6\u30fc\u3092\u6700\u3082\u9069\u5207\u306a\u30b5\u30fc\u30d0\u30fc\u306b\u8a98\u5c0e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>DNS \u4f1d\u64ad\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<ol>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/dns\/what-is-dns-propagation\/\" target=\"_new\" rel=\"noopener nofollow\">DNS\u4f1d\u64ad\u3092\u7406\u89e3\u3059\u308b<\/a><\/li>\n<li><a href=\"https:\/\/www.interserver.net\/tips\/kb\/dns-propagation-explained\/\" target=\"_new\" rel=\"noopener nofollow\">DNS \u4f1d\u64ad\u306e\u8aac\u660e<\/a><\/li>\n<li><a href=\"https:\/\/www.nanog.org\/meetings\/nanog69\/presentations\/reddy-anycast-dns-nanog69.pdf\" target=\"_new\" rel=\"noopener nofollow\">\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u3068 DNS \u4f1d\u64ad\u3078\u306e\u5f71\u97ff<\/a><\/li>\n<li><a href=\"https:\/\/www.icann.org\/en\/system\/files\/files\/dnssec-fact-sheet-09feb12-en.pdf\" target=\"_new\" rel=\"noopener nofollow\">DNSSEC: DNS \u4f1d\u64ad\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u3068\u3063\u3066\u306a\u305c\u91cd\u8981\u306a\u306e\u304b<\/a><\/li>\n<\/ol>\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001DNS \u4f1d\u64ad\u306f\u3001DNS \u60c5\u5831\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u306a\u914d\u4fe1\u3068\u540c\u671f\u3092\u4fdd\u8a3c\u3059\u308b\u3001\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002DNS \u4f1d\u64ad\u306b\u306f\u56fa\u6709\u306e\u6642\u9593\u9045\u5ef6\u304c\u4f34\u3044\u307e\u3059\u304c\u3001\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3068 DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u7d99\u7d9a\u7684\u306a\u9032\u6b69\u306b\u3088\u308a\u3001DNS \u4f1d\u64ad\u306f\u5f37\u5316\u3055\u308c\u3001\u5c06\u6765\u7684\u306b\u306f\u3088\u308a\u52b9\u7387\u7684\u3067\u5b89\u5168\u306a\u3082\u306e\u306b\u306a\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u914d\u4fe1\u3059\u308b\u6a5f\u80fd\u3092\u5099\u3048\u3066\u304a\u308a\u3001DNS \u4f1d\u64ad\u306e\u9045\u5ef6\u306e\u5f71\u97ff\u3092\u8efd\u6e1b\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3068 Web \u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3092\u5411\u4e0a\u3055\u305b\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>","protected":false},"featured_media":476915,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476914","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>DNS Propagation: A Comprehensive Guide<\/mark>","faq_items":[{"question":"<strong>FAQs - DNS Propagation: A Comprehensive Guide<\/strong>","answer":""},{"question":"<strong>What is DNS propagation?<\/strong>","answer":"<p>DNS propagation is the process of distributing and updating DNS information across global DNS servers. When changes are made to a domain's DNS settings, like modifying its IP address, it takes some time for these updates to reach all DNS servers worldwide. During this time, users may experience temporary inconsistencies in accessing the website.<\/p>"},{"question":"<strong>How did DNS propagation originate?<\/strong>","answer":"<p>DNS propagation emerged alongside the establishment of the Domain Name System in the early 1980s. As more domain names were registered, the need for a time window to propagate DNS updates across all servers became evident.<\/p>"},{"question":"<strong>How does DNS propagation work?<\/strong>","answer":"<p>DNS propagation follows a hierarchical structure. When a user requests a domain name, a local DNS resolver checks its cache for the associated IP address. If the information is not cached, the resolver queries root servers, TLD servers, and authoritative DNS servers to obtain the updated DNS records.<\/p>"},{"question":"<strong>What are the key features of DNS propagation?<\/strong>","answer":"<p>The key features of DNS propagation include a propagation delay, hierarchical structure, caching mechanism, TTL setting, and redundancy through secondary DNS propagation.<\/p>"},{"question":"<strong>What are the types of DNS propagation?<\/strong>","answer":"<p>There are two types of DNS propagation:<\/p><ol><li><strong>Primary DNS Propagation:<\/strong> Occurs during domain registration or changes and updates authoritative DNS servers.<\/li><li><strong>Secondary DNS Propagation:<\/strong> Involves synchronizing secondary DNS servers with the primary authoritative servers for redundancy.<\/li><\/ol>"},{"question":"<strong>How can I use DNS propagation?<\/strong>","answer":"<p>DNS propagation is used for various purposes, including domain name changes, IP address updates, and subdomain configuration.<\/p>"},{"question":"<strong>What are the common problems during DNS propagation?<\/strong>","answer":"<p>Common issues include propagation delays, stale cache, and incomplete propagation. These can lead to temporary website inaccessibility.<\/p>"},{"question":"<strong>How can I minimize propagation delays?<\/strong>","answer":"<p>To minimize delays, administrators can set shorter TTL values in DNS records. This encourages faster updates across DNS servers.<\/p>"},{"question":"<strong>What is the difference between DNS propagation and DNS resolution?<\/strong>","answer":"<p>DNS propagation involves updating and distributing DNS records, while DNS resolution is the process of finding the IP address for a domain name during each user query.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476914","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\/476914\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/476915"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476914"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}