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\u30a2\u30c9\u30ec\u30b9\u3067\u8b58\u5225\u3067\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u62e1\u5927\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u3088\u308a\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u30e6\u30fc\u30b6\u30fc\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u306a\u30b7\u30b9\u30c6\u30e0\u304c\u5fc5\u8981\u3067\u3042\u308b\u3053\u3068\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u554f\u984c\u306e\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u30011983 \u5e74\u306b Paul Mockapetris \u306b\u3088\u3063\u3066\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u304c\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u53f2\u4e0a\u521d\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306f\u30011985 \u5e74 3 \u6708 15 \u65e5\u306b\u7c73\u56fd\u30de\u30b5\u30c1\u30e5\u30fc\u30bb\u30c3\u30c4\u5dde\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30b7\u30b9\u30c6\u30e0\u4f1a\u793e\u3067\u3042\u308b Symbolics Inc. \u306b\u3088\u3063\u3066\u767b\u9332\u3055\u308c\u305f\u300csymbolics.com\u300d\u3067\u3057\u305f\u3002\u3053\u308c\u304c\u30c9\u30e1\u30a4\u30f3\u6642\u4ee3\u306e\u5e55\u958b\u3051\u3068\u306a\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u5229\u7528\u65b9\u6cd5\u3092\u6c38\u9060\u306b\u5909\u3048\u307e\u3057\u305f\u3002<\/p>\n<h2>\u30c9\u30e1\u30a4\u30f3\u306e\u6df1\u6398\u308a<\/h2>\n<p>\u30c9\u30e1\u30a4\u30f3\u540d\u306f\u3001\u57fa\u672c\u7684\u306b\u3001\u4eba\u3005\u304c Web \u30d6\u30e9\u30a6\u30b6\u306b\u5165\u529b\u3057\u3066\u30a2\u30af\u30bb\u30b9\u3059\u308b Web \u30b5\u30a4\u30c8\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u5404\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u80cc\u5f8c\u306b\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30d7\u30ed\u30c8\u30b3\u30eb (IP) \u30a2\u30c9\u30ec\u30b9\u3068\u547c\u3070\u308c\u308b\u4e00\u9023\u306e\u6570\u5b57\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001google.com \u306e IP 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\u306f\u901a\u5e38\u3001\u4f1a\u793e\u540d\u307e\u305f\u306f\u767b\u9332\u3057\u305f\u540d\u524d\u3067\u3059 (\u300cgoogle.com\u300d\u306e\u300cgoogle\u300d\u306a\u3069)\u3002\u30b5\u30fc\u30c9\u30ec\u30d9\u30eb \u30c9\u30e1\u30a4\u30f3\u304a\u3088\u3073\u305d\u308c\u4ee5\u4e0b\u306e\u30ec\u30d9\u30eb \u30c9\u30e1\u30a4\u30f3\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3001Web \u30b5\u30a4\u30c8\u306e\u3055\u307e\u3056\u307e\u306a\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u7de8\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u30c9\u30e1\u30a4\u30f3\u306e\u5185\u90e8\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>\u30d6\u30e9\u30a6\u30b6\u306b\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u6b21\u306e\u3053\u3068\u304c\u8d77\u3053\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30d6\u30e9\u30a6\u30b6\u306f\u307e\u305a\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u3092\u898b\u3064\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u6210\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u306e\u30b0\u30ed\u30fc\u30d0\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u884c\u308f\u308c\u307e\u3059\u3002<\/li>\n<li>\u30d6\u30e9\u30a6\u30b6\u306f\u307e\u305a\u3001\u901a\u5e38\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30b5\u30fc\u30d3\u30b9 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc (ISP) \u306b\u3088\u3063\u3066\u904b\u7528\u3055\u308c\u308b DNS \u518d\u5e30\u30ea\u30be\u30eb\u30d0\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/li>\n<li>DNS \u30ea\u30be\u30eb\u30d0\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306b IP \u30a2\u30c9\u30ec\u30b9\u304c\u306a\u3044\u5834\u5408\u3001\u4e00\u9023\u306e DNS \u30eb\u30fc\u30c8 \u30b5\u30fc\u30d0\u30fc\u306b\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u3001\u6b21\u306b TLD \u30b5\u30fc\u30d0\u30fc\u306b\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u3001\u6700\u5f8c\u306b\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u6a29\u9650\u306e\u3042\u308b DNS \u30b5\u30fc\u30d0\u30fc\u306b\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/li>\n<li>\u6a29\u5a01 DNS \u30b5\u30fc\u30d0\u30fc\u306f\u30c9\u30e1\u30a4\u30f3\u306e IP \u30a2\u30c9\u30ec\u30b9\u3067\u5fdc\u7b54\u3057\u3001\u305d\u306e IP \u30a2\u30c9\u30ec\u30b9\u306f DNS \u30ea\u30be\u30eb\u30d0\u30fc\u306b\u3088\u3063\u3066\u30d6\u30e9\u30a6\u30b6\u30fc\u306b\u8fd4\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u30d6\u30e9\u30a6\u30b6\u306f\u6307\u5b9a\u3055\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u306e Web \u30b5\u30fc\u30d0\u30fc\u3068\u306e\u63a5\u7d9a\u3092\u78ba\u7acb\u3057\u3001Web \u30b5\u30a4\u30c8\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u53d6\u5f97\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u306b\u8868\u793a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2>\u30c9\u30e1\u30a4\u30f3\u306e\u4e3b\u306a\u7279\u5fb4<\/h2>\n<ul>\n<li><strong>\u53ef\u8aad\u6027<\/strong>: \u30c9\u30e1\u30a4\u30f3\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u304c\u4f7f\u7528\u3059\u308b\u6570\u5024\u306e IP \u30a2\u30c9\u30ec\u30b9\u3068\u306f\u7570\u306a\u308a\u3001\u4eba\u9593\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u7c21\u5358\u306b\u8aad\u307f\u53d6\u308a\u3001\u8a18\u61b6\u3067\u304d\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u72ec\u81ea\u6027<\/strong>: \u3059\u3079\u3066\u306e\u30c9\u30e1\u30a4\u30f3\u306f\u56fa\u6709\u3067\u3059\u3002\u4e00\u5ea6\u767b\u9332\u3059\u308b\u3068\u3001\u4ed6\u306e\u8ab0\u3082\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u968e\u5c64<\/strong>: \u30c9\u30e1\u30a4\u30f3\u306f\u968e\u5c64\u5f62\u5f0f\u3067\u69cb\u9020\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u6700\u4e0a\u4f4d\u306b TLD\u3001\u6b21\u306b SLD \u304c\u7d9a\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/strong>: \u30c9\u30e1\u30a4\u30f3 \u30b7\u30b9\u30c6\u30e0\u306f\u3001\u73fe\u5728\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u6570\u5341\u5104\u306e Web \u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u3001\u975e\u5e38\u306b\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30c9\u30e1\u30a4\u30f3\u306e\u7a2e\u985e<\/h2>\n<p>\u30c9\u30e1\u30a4\u30f3\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u7a2e\u985e\u304c\u3042\u308a\u3001\u76ee\u7684\u3084\u767b\u9332\u306e\u6027\u8cea\u306b\u3088\u3063\u3066\u5206\u985e\u3055\u308c\u307e\u3059\u3002\u4e3b\u306a\u7a2e\u985e\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li><strong>\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb\u30c9\u30e1\u30a4\u30f3 (gTLD)<\/strong>: \u3053\u308c\u3089\u306f\u3001.com\u3001.net\u3001.org \u306a\u3069\u3001\u6700\u3082\u4e00\u822c\u7684\u3067\u4eba\u6c17\u306e\u3042\u308b\u30c9\u30e1\u30a4\u30f3\u306e\u4e00\u90e8\u3067\u3059\u3002<\/li>\n<li><strong>\u56fd\u5225\u30b3\u30fc\u30c9\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb\u30c9\u30e1\u30a4\u30f3 (ccTLD)<\/strong>: \u3053\u308c\u3089\u306f\u3001\u7c73\u56fd\u306e .us\u3001\u82f1\u56fd\u306e .uk\u3001\u65e5\u672c\u306e .jp \u306a\u3069\u3001\u56fd\u56fa\u6709\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u3059\u3002<\/li>\n<li><strong>\u30b9\u30dd\u30f3\u30b5\u30fc\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb\u30c9\u30e1\u30a4\u30f3 (sTLD)<\/strong>: \u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306f\u3001\u7279\u5b9a\u306e\u7d44\u7e54\u307e\u305f\u306f\u6a5f\u95a2\u306b\u3088\u3063\u3066\u30b9\u30dd\u30f3\u30b5\u30fc\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4f8b\u3068\u3057\u3066\u306f\u3001\u6559\u80b2\u6a5f\u95a2\u306e .edu \u3084\u7c73\u56fd\u653f\u5e9c\u6a5f\u95a2\u306e .gov \u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u56fd\u969b\u5316\u56fd\u30b3\u30fc\u30c9\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb\u30c9\u30e1\u30a4\u30f3 (IDN ccTLD)<\/strong>: \u3053\u308c\u3089\u306f\u3001\u30e9\u30c6\u30f3\u6587\u5b57\u4ee5\u5916\u306e\u6587\u5b57\u3067\u66f8\u304b\u308c\u305f\u56fd\u56fa\u6709\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u3059\u3002<\/li>\n<li><strong>\u30bb\u30ab\u30f3\u30c9\u30ec\u30d9\u30eb\u30c9\u30e1\u30a4\u30f3 (SLD)<\/strong>: \u3053\u308c\u3089\u306f\u767b\u9332\u8005\u306b\u56fa\u6709\u306e\u3082\u306e\u3067\u3001\u901a\u5e38\u306f\u4f1a\u793e\u540d\u307e\u305f\u306f\u7d44\u7e54\u540d\u3067\u3059\u3002<\/li>\n<\/ol>\n<h2>\u30c9\u30e1\u30a4\u30f3\u306e\u5b9f\u7528\u5316\uff1a\u554f\u984c\u3068\u89e3\u6c7a\u7b56<\/h2>\n<p>\u30c9\u30e1\u30a4\u30f3\u306f\u3001Web \u30d9\u30fc\u30b9\u306e\u6d3b\u52d5\u306e\u57fa\u76e4\u3068\u306a\u308a\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u306f\u3001Web \u30b5\u30a4\u30c8\u3084\u96fb\u5b50\u30e1\u30fc\u30eb \u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u8a2d\u5b9a\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u500b\u4eba\u304c\u30c9\u30e1\u30a4\u30f3\u3092\u8cfc\u5165\u3057\u3066\u9ad8\u984d\u3067\u8ca9\u58f2\u3059\u308b\u30b5\u30a4\u30d0\u30fc\u30b9\u30af\u30ef\u30c3\u30c6\u30a3\u30f3\u30b0\u306a\u3069\u306e\u554f\u984c\u306b\u76f4\u9762\u3059\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u5bfe\u6297\u3059\u308b\u305f\u3081\u3001\u591a\u304f\u306e\u4f01\u696d\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u5546\u6a19\u767b\u9332\u3084\u6cd5\u7684\u63aa\u7f6e\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u4ed6\u306e\u3088\u304f\u3042\u308b\u554f\u984c\u3068\u3057\u3066\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u767b\u9332\u306e\u66f4\u65b0\u3092\u5fd8\u308c\u3066\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u4ed6\u4eba\u306b\u53d6\u5f97\u3055\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u767b\u9332\u306e\u81ea\u52d5\u66f4\u65b0\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u985e\u4f3c\u7528\u8a9e\u3092\u6301\u3064\u30c9\u30e1\u30a4\u30f3\u306e\u6bd4\u8f03<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u5b66\u671f<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30c9\u30e1\u30a4\u30f3<\/strong><\/td>\n<td>\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u8b58\u5225\u3059\u308b\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u540d\u524d\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30da\u30fc\u30b8\u307e\u305f\u306f\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u7279\u5b9a\u306e\u30a2\u30c9\u30ec\u30b9\u3002\u30c9\u30e1\u30a4\u30f3\u540d\u3001\u30d1\u30b9\u3001\u305d\u306e\u4ed6\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>IP\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td>\u901a\u4fe1\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u53c2\u52a0\u3057\u3066\u3044\u308b\u5404\u30c7\u30d0\u30a4\u30b9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u4e00\u610f\u306e\u6570\u5024\u30e9\u30d9\u30eb\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30c9\u30e1\u30a4\u30f3\u306e\u672a\u6765: \u65b0\u8208\u30c6\u30af\u30ce\u30ed\u30b8\u30fc<\/h2>\n<p>\u30c9\u30e1\u30a4\u30f3\u306e\u5c06\u6765\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9032\u5316\u3068\u672c\u8cea\u7684\u306b\u7d50\u3073\u3064\u3044\u3066\u3044\u307e\u3059\u3002\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u304c\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u4f7f\u7528\u65b9\u6cd5\u3084\u7ba1\u7406\u65b9\u6cd5\u3082\u5909\u5316\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3 \u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u767b\u5834\u306b\u3088\u308a\u3001\u5206\u6563\u578b\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306f\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u4e0a\u3067\u58f2\u8cb7\u3055\u308c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30e6\u30fc\u30b6\u30fc \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304c\u5f37\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3082\u3046\u4e00\u3064\u306e\u65b0\u305f\u306a\u30c8\u30ec\u30f3\u30c9\u306f\u3001\u65b0\u3057\u3044 TLD \u306e\u4f7f\u7528\u3067\u3059\u3002\u30d6\u30e9\u30f3\u30c9\u3084\u7d44\u7e54\u306f\u3001.google \u3084 .amazon \u306a\u3069\u3001\u3088\u308a\u30e6\u30cb\u30fc\u30af\u3067\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u3088\u308a\u30d6\u30e9\u30f3\u30c9\u4e2d\u5fc3\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u751f\u307f\u51fa\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3068\u30c9\u30e1\u30a4\u30f3\u306e\u76f8\u4e92\u4f5c\u7528<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30a8\u30f3\u30c9 \u30e6\u30fc\u30b6\u30fc\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9593\u306e\u4ef2\u4ecb\u5f79\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30cb\u30fc\u30ba\u306b\u5fdc\u3058\u3066\u3055\u307e\u3056\u307e\u306a\u30ec\u30d9\u30eb\u306e\u6a5f\u80fd\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u3067\u30c9\u30e1\u30a4\u30f3\u3068\u3068\u3082\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u30ea\u30d0\u30fc\u30b9 \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30c9\u30e1\u30a4\u30f3\u5185\u306e\u9069\u5207\u306a\u30b5\u30fc\u30d0\u30fc\u306b\u8ee2\u9001\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u3001\u8ca0\u8377\u5206\u6563\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30d5\u30a9\u30ef\u30fc\u30c9 \u30d7\u30ed\u30ad\u30b7\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u691c\u95b2\u306e\u3042\u308b\u56fd\u306a\u3069\u3001\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u306e\u3042\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30a2\u30af\u30bb\u30b9\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u540d\u306f\u901a\u5e38\u3001\u30d7\u30ed\u30ad\u30b7\u304c\u9069\u5207\u306a\u5834\u6240\u304b\u3089\u60c5\u5831\u3092\u8981\u6c42\u3059\u308b\u305f\u3081\u306b\u77e5\u3063\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308b\u8a73\u7d30\u60c5\u5831\u306e 1 \u3064\u3067\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<ul>\n<li><a href=\"https:\/\/computer.howstuffworks.com\/dns.htm\" target=\"_new\" rel=\"noopener nofollow\">\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306e\u4ed5\u7d44\u307f<\/a><\/li>\n<li><a href=\"https:\/\/www.iana.org\/\" target=\"_new\" rel=\"noopener nofollow\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5272\u308a\u5f53\u3066\u756a\u53f7\u5c40 (IANA)<\/a><\/li>\n<li><a href=\"https:\/\/www.w3.org\/\" target=\"_new\" rel=\"noopener nofollow\">\u30ef\u30fc\u30eb\u30c9\u30ef\u30a4\u30c9\u30a6\u30a7\u30d6\u30b3\u30f3\u30bd\u30fc\u30b7\u30a2\u30e0\uff08W3C\uff09<\/a><\/li>\n<\/ul>\n<p>\u8981\u7d04\u3059\u308b\u3068\u3001\u30c9\u30e1\u30a4\u30f3\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u4e0d\u53ef\u6b20\u306a\u90e8\u5206\u3067\u3042\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30b5\u30fc\u30d0\u30fc\u306e\u5e83\u5927\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306e\u4f53\u7cfb\u5316\u3055\u308c\u305f\u4eba\u9593\u306b\u512a\u3057\u3044\u30b7\u30b9\u30c6\u30e0\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u306e\u6a5f\u80fd\u3068\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u95a2\u9023\u30c6\u30af\u30ce\u30ed\u30b8\u3068\u306e\u95a2\u9023\u6027\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u7a7a\u9593\u3092\u52b9\u7387\u7684\u306b\u30ca\u30d3\u30b2\u30fc\u30c8\u3057\u305f\u3044\u4eba\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>","protected":false},"featured_media":468254,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476962","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Understanding Domains: The Backbone of the Internet<\/mark>","faq_items":[{"question":"What is a Domain?","answer":"<p>A domain is essentially the address of a website that people type into a web browser to visit it. Every domain is unique and each represents a string of numbers known as an Internet Protocol (IP) address.<\/p>"},{"question":"Who created the Domain Name System (DNS)?","answer":"<p>The Domain Name System (DNS) was introduced by Paul Mockapetris in 1983 as a scalable and user-friendly system to address the growing network of internet servers.<\/p>"},{"question":"What was the first registered domain name?","answer":"<p>The first domain name ever registered was \"symbolics.com\" on March 15, 1985, by Symbolics Inc., a computer systems company in Massachusetts, USA.<\/p>"},{"question":"How does the Domain Name System (DNS) work?","answer":"<p>When a domain is typed into a browser, the browser locates the IP address associated with that domain by asking a global network of servers that form the DNS. This process involves a DNS recursive resolver, DNS root servers, TLD servers, and the authoritative DNS servers for the specific domain.<\/p>"},{"question":"What are the key features of domains?","answer":"<p>The key features of domains include readability (they're designed to be easily read and remembered by human users), uniqueness (every domain is unique), hierarchy (domains are structured in a hierarchical format), and scalability (the domain system is designed to accommodate billions of web addresses).<\/p>"},{"question":"What types of domains exist?","answer":"<p>Domains can be classified into several types including Generic Top-Level Domains (gTLDs), Country Code Top-Level Domains (ccTLDs), Sponsored Top-Level Domains (sTLDs), Internationalized Country Code Top-Level Domains (IDN ccTLDs), and Second-Level Domains (SLDs).<\/p>"},{"question":"What are some common problems associated with domain use?","answer":"<p>Common issues include cybersquatting, where individuals buy domains intending to sell them at inflated prices, and forgetting to renew domain registration, which can lead to the domain name being snapped up by someone else.<\/p>"},{"question":"How does the future of domains look with emerging technologies?","answer":"<p>The future of domains is likely to be influenced by technologies such as blockchain, leading to Decentralized Domain Names, and the use of new TLDs, with brands using more unique and personalized domains for brand-centric internet experiences.<\/p>"},{"question":"How do proxy servers interact with domains?","answer":"<p>Proxy servers serve as intermediaries between end users and the internet. They can direct requests from the internet to the correct server within a domain (in the case of a reverse proxy server), or serve content from a specific domain to users who might not have direct access (in the case of a forward proxy).<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476962","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\/476962\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/468254"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476962"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}