{"id":475876,"date":"2023-08-09T07:24:43","date_gmt":"2023-08-09T07:24:43","guid":{"rendered":""},"modified":"2023-09-05T11:11:29","modified_gmt":"2023-09-05T11:11:29","slug":"anycast-dns","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/anycast-dns\/","title":{"rendered":"\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8DNS"},"content":{"rendered":"<p>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306f\u3001\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0 \u30b7\u30b9\u30c6\u30e0 (DNS) \u30b5\u30fc\u30d3\u30b9\u306e\u4fe1\u983c\u6027\u3001\u56de\u5fa9\u529b\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u6280\u8853\u3067\u3059\u3002DNS \u306f\u3001\u4eba\u9593\u304c\u5224\u8aad\u3067\u304d\u308b\u30c9\u30e1\u30a4\u30f3\u540d (\u4f8b: oneproxy.pro) \u3092\u5bfe\u5fdc\u3059\u308b IP \u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\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\u3042\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u304c Web \u30b5\u30a4\u30c8\u3084\u305d\u306e\u4ed6\u306e\u30aa\u30f3\u30e9\u30a4\u30f3 \u30b5\u30fc\u30d3\u30b9\u306b\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2<\/h2>\n<p>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u306e\u6982\u5ff5\u306f\u30011990 \u5e74\u4ee3\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6280\u8853\u7279\u5225\u8abf\u67fb\u59d4\u54e1\u4f1a (IETF) \u306e\u521d\u671f\u306b\u307e\u3067\u9061\u308a\u307e\u3059\u30021993 \u5e74\u306b RFC 1546 \u3067\u6b63\u5f0f\u306b\u5c0e\u5165\u3055\u308c\u3001\u6587\u66f8\u5316\u3055\u308c\u307e\u3057\u305f\u3002\u4e3b\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30d7\u30ed\u30c8\u30b3\u30eb (IP) \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u306e\u4f7f\u7528\u306b\u3064\u3044\u3066\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a8\u30f3\u30b8\u30cb\u30a2\u304c DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u56de\u5fa9\u529b\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3092\u6a21\u7d22\u3059\u308b\u4e2d\u3067\u3001DNS \u30b5\u30fc\u30d3\u30b9\u306b\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3092\u9069\u7528\u3059\u308b\u3068\u3044\u3046\u8003\u3048\u304c\u5e83\u307e\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u8a73\u7d30\u60c5\u5831: \u30c8\u30d4\u30c3\u30af\u306e\u62e1\u5f35<\/h2>\n<p>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u30c7\u30fc\u30bf\u3092\u79fb\u52d5\u3059\u308b\u305f\u3081\u306e\u6700\u3082\u52b9\u7387\u7684\u306a\u30d1\u30b9\u3092\u6c7a\u5b9a\u3059\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u30dc\u30fc\u30c0\u30fc \u30b2\u30fc\u30c8\u30a6\u30a7\u30a4 \u30d7\u30ed\u30c8\u30b3\u30eb (BGP) \u3092\u5229\u7528\u3057\u307e\u3059\u3002\u5730\u7406\u7684\u306b\u5206\u6563\u3057\u305f\u8907\u6570\u306e\u5834\u6240\u304b\u3089\u540c\u3058 IP \u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2\u3092\u30a2\u30ca\u30a6\u30f3\u30b9\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u306f DNS \u30ea\u30be\u30eb\u30d0\u30fc\u304c\u30af\u30a8\u30ea\u3092\u6700\u3082\u8fd1\u304f\u3001\u6700\u3082\u901f\u304f\u5fdc\u7b54\u3059\u308b DNS \u30b5\u30fc\u30d0\u30fc\u306b\u8ee2\u9001\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u5185\u90e8\u69cb\u9020: \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u4ed5\u7d44\u307f<\/h2>\n<p>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u5185\u90e8\u69cb\u9020\u306b\u306f\u3001\u305d\u308c\u305e\u308c\u304c\u540c\u3058 IP \u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3064\u8907\u6570\u306e DNS \u30b5\u30fc\u30d0\u30fc\u304c\u7570\u306a\u308b\u5834\u6240\u306b\u5c55\u958b\u3055\u308c\u308b\u3053\u3068\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c DNS \u30af\u30a8\u30ea\u3092\u958b\u59cb\u3059\u308b\u3068\u3001BGP \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u305d\u306e\u7279\u5b9a\u306e IP \u30a2\u30c9\u30ec\u30b9\u3092\u901a\u77e5\u3059\u308b\u6700\u3082\u8fd1\u3044\u5229\u7528\u53ef\u80fd\u306a DNS \u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u5fdc\u7b54\u3057\u305f DNS \u30b5\u30fc\u30d0\u30fc\u304c\u30af\u30a8\u30ea\u3092\u51e6\u7406\u3057\u3001\u5fc5\u8981\u306a DNS \u60c5\u5831\u3092\u30e6\u30fc\u30b6\u30fc\u306b\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u4e3b\u306a\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n<p>Anycast DNS \u306f\u3001DNS \u30b5\u30fc\u30d3\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fe1\u983c\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u8cb4\u91cd\u306a\u30c4\u30fc\u30eb\u3068\u306a\u308b\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u8ca0\u8377\u5206\u6563<\/strong>: \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u306f\u3001\u7740\u4fe1 DNS \u30af\u30a8\u30ea\u3092\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u5206\u6563\u3057\u3001\u8ca0\u8377\u3092\u52b9\u679c\u7684\u306b\u5206\u6563\u3057\u3066\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u9632\u6b62\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d5\u30a9\u30fc\u30eb\u30c8\u30c8\u30ec\u30e9\u30f3\u30b9<\/strong>: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u969c\u5bb3\u306b\u3088\u308a\u30011 \u3064\u306e\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u30b5\u30fc\u30d0\u30fc\u304c\u4f7f\u7528\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u5834\u5408\u3001BGP \u306f\u30af\u30a8\u30ea\u3092\u6b21\u306b\u8fd1\u3044\u4f7f\u7528\u53ef\u80fd\u306a\u30b5\u30fc\u30d0\u30fc\u306b\u81ea\u52d5\u7684\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u7d99\u7d9a\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9045\u5ef6\u306e\u524a\u6e1b<\/strong>: Anycast \u306f\u30e6\u30fc\u30b6\u30fc\u3092\u6700\u3082\u8fd1\u3044 DNS \u30b5\u30fc\u30d0\u30fc\u306b\u8a98\u5c0e\u3059\u308b\u3053\u3068\u3067\u3001DNS \u30af\u30a8\u30ea\u306e\u89e3\u6c7a\u306b\u304b\u304b\u308b\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001Web \u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5206\u6563\u578b\u30b5\u30fc\u30d3\u30b9\u62d2\u5426 (DDoS) \u306e\u7de9\u548c<\/strong>: \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u306f\u3001\u653b\u6483\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u5206\u6563\u3059\u308b\u3053\u3068\u3067 DDoS \u653b\u6483\u3092\u5438\u53ce\u3057\u3001\u653b\u6483\u8005\u304c\u5358\u4e00\u306e\u30dd\u30a4\u30f3\u30c8 \u30aa\u30d6 \u30d7\u30ec\u30bc\u30f3\u30b9\u3092\u5727\u5012\u3059\u308b\u3053\u3068\u3092\u3088\u308a\u56f0\u96e3\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u7a2e\u985e<\/h2>\n<p>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u8a2d\u5b9a\u306b\u306f\u4e3b\u306b 2 \u3064\u306e\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>\u30bf\u30a4\u30d7<\/strong><\/th>\n<th><strong>\u8aac\u660e<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5358\u4e00\u30b5\u30fc\u30d3\u30b9\u306e\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8<\/td>\n<td>Anycast \u306f DNS \u30b5\u30fc\u30d3\u30b9\u306b\u306e\u307f\u4f7f\u7528\u3055\u308c\u3001\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u3066 DNS \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u56de\u5fa9\u529b\u3092\u5f37\u5316\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30de\u30eb\u30c1\u30b5\u30fc\u30d3\u30b9\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8<\/td>\n<td>HTTP\u3001SMTP\u3001\u305d\u306e\u4ed6\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306a\u3069\u306e\u8907\u6570\u306e\u30b5\u30fc\u30d3\u30b9\u306b Anycast \u3092\u9069\u7528\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5168\u4f53\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u56de\u5fa9\u529b\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8DNS\u306e\u4f7f\u3044\u65b9\u3068\u5229\u7528\u306b\u4f34\u3046\u554f\u984c\u70b9\u3068\u305d\u306e\u89e3\u6c7a\u7b56<\/h2>\n<h3>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u4f7f\u7528\u65b9\u6cd5:<\/h3>\n<ul>\n<li>\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (CDN): CDN \u306f\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u3092\u4f7f\u7528\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u3092\u6700\u3082\u8fd1\u3044\u30ad\u30e3\u30c3\u30b7\u30e5 \u30b5\u30fc\u30d0\u30fc\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3001\u9045\u5ef6\u3092\u524a\u6e1b\u3057\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>DNS \u30db\u30b9\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc: DNS \u30db\u30b9\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u3001\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3092\u5b9f\u88c5\u3057\u3066\u3001DNS \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u56de\u5fa9\u529b\u3068\u5fdc\u7b54\u6027\u3092\u5f37\u5316\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u30c8\u30c3\u30d7\u30ec\u30d9\u30eb \u30c9\u30e1\u30a4\u30f3 (TLD) \u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc: \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3092 TLD \u30cd\u30fc\u30e0 \u30b5\u30fc\u30d0\u30fc\u306b\u4f7f\u7528\u3059\u308b\u3068\u3001\u30eb\u30fc\u30c8 \u30ec\u30d9\u30eb\u3067\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u89e3\u6c7a\u304c\u3088\u308a\u901f\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u4f7f\u7528\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u3068\u89e3\u6c7a\u7b56:<\/h3>\n<ol>\n<li>\n<p><strong>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u554f\u984c<\/strong>\uff1a \u9593\u9055\u3063\u305f BGP \u30a2\u30ca\u30a6\u30f3\u30b9\u3084\u6700\u9069\u3067\u306f\u306a\u3044\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u6a19\u6e96\u4ee5\u4e0b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u4e2d\u65ad\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u306b\u306f\u3001\u5b9a\u671f\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u76e3\u8996\u3068\u6700\u9069\u5316\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30b0\u30ed\u30fc\u30d0\u30eb\u540c\u671f<\/strong>: DNS \u30ec\u30b3\u30fc\u30c9\u3078\u306e\u5909\u66f4\u306f\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u4f1d\u64ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u3055\u307e\u3056\u307e\u306a DNS \u30ad\u30e3\u30c3\u30b7\u30e5 \u30ec\u30d9\u30eb\u304c\u539f\u56e0\u3067\u6642\u9593\u304c\u304b\u304b\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u8efd\u6e1b\u3059\u308b\u306b\u306f\u3001DNS \u7ba1\u7406\u8005\u306f\u9069\u5207\u306a TTL (Time-to-Live) \u5024\u3092\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u4e0d\u5747\u4e00\u306a\u5206\u6563<\/strong>: \u30b5\u30fc\u30d0\u30fc\u306e\u5bb9\u91cf\u306e\u4e0d\u5747\u8861\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30b9\u306e\u9055\u3044\u306b\u3088\u308a\u3001\u4e00\u90e8\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u4ed6\u306e\u30b5\u30fc\u30d0\u30fc\u3088\u308a\u3082\u591a\u304f\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u4fe1\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u8ca0\u8377\u5206\u6563\u6280\u8853\u306f\u3001\u3053\u306e\u554f\u984c\u306e\u89e3\u6c7a\u306b\u5f79\u7acb\u3061\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<table>\n<thead>\n<tr>\n<th><strong>\u5b66\u671f<\/strong><\/th>\n<th><strong>\u8aac\u660e<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8DNS<\/td>\n<td>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3066 DNS \u30af\u30a8\u30ea\u3092\u6700\u3082\u8fd1\u3044\u5229\u7528\u53ef\u80fd\u306a\u30b5\u30fc\u30d0\u30fc\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u56de\u5fa9\u529b\u3092\u5411\u4e0a\u3055\u305b\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u6280\u8853\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8DNS<\/td>\n<td>\u5404 DNS \u30af\u30a8\u30ea\u304c\u5358\u4e00\u306e\u4e00\u610f\u306e IP \u30a2\u30c9\u30ec\u30b9\u306b\u9001\u4fe1\u3055\u308c\u308b\u5f93\u6765\u306e DNS \u89e3\u6c7a\u65b9\u6cd5\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8<\/td>\n<td>\u8907\u6570\u306e\u53d7\u4fe1\u8005\u3078\u306e\u30c7\u30fc\u30bf\u306e\u540c\u6642\u9001\u4fe1\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u304c\u30011 \u5bfe\u591a\u306e\u901a\u4fe1\u7528\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001DNS \u89e3\u6c7a\u306b\u306f\u9069\u7528\u3055\u308c\u307e\u305b\u3093\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u653e\u9001<\/td>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u3059\u3079\u3066\u306e\u53d7\u4fe1\u8005\u306b\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u975e\u52b9\u7387\u3067\u3042\u308a\u3001\u5e83\u7bc4\u56f2\u306b\u7121\u5dee\u5225\u306b\u914d\u4fe1\u3055\u308c\u308b\u305f\u3081 DNS \u89e3\u6c7a\u306b\u306f\u9069\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8DNS\u306b\u95a2\u3059\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u6210\u9577\u3057\u3001\u9032\u5316\u3057\u7d9a\u3051\u308b\u306b\u3064\u308c\u3066\u3001\u30aa\u30f3\u30e9\u30a4\u30f3 \u30b5\u30fc\u30d3\u30b9\u306e\u5168\u4f53\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fe1\u983c\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u3001Anycast DNS \u306f\u3055\u3089\u306b\u91cd\u8981\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 BGP \u6700\u9069\u5316\u306e\u9032\u6b69\u3001\u3088\u308a\u512a\u308c\u305f\u76e3\u8996\u30c4\u30fc\u30eb\u3001\u304a\u3088\u3073 IPv6 \u306e\u666e\u53ca\u306b\u3088\u308a\u3001\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u6a5f\u80fd\u306f\u3055\u3089\u306b\u5f37\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092 Anycast DNS \u3067\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u307e\u305f\u306f\u95a2\u9023\u4ed8\u3051\u308b\u65b9\u6cd5<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u306e\u5b9f\u88c5\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002 OneProxy \u306e\u3088\u3046\u306a\u30d7\u30ed\u30ad\u30b7 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u5730\u7406\u7684\u5834\u6240\u306b\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u6226\u7565\u7684\u306b\u5c55\u958b\u3059\u308b\u3053\u3068\u3067\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e DNS \u89e3\u6c7a\u306e\u5fdc\u7b54\u6027\u3068\u7cbe\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u8ca0\u8377\u5206\u6563\u3084\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8 DNS \u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e DNS \u30af\u30a8\u30ea\u306e\u30aa\u30d5\u30ed\u30fc\u30c9\u306b\u3082\u5f79\u7acb\u3061\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3068\u5168\u4f53\u7684\u306a\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>Anycast 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<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc1546\" target=\"_new\" rel=\"noopener nofollow\">RFC 1546 \u306e\u7ffb\u8a33<\/a>: IP \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3092\u7d39\u4ecb\u3059\u308b\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3002<\/li>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/dns\/glossary\/what-is-anycast-dns\/\" target=\"_new\" rel=\"noopener nofollow\">DNS \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3068\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8<\/a>: \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3068\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8\u306e DNS \u89e3\u6c7a\u306e\u6bd4\u8f03\u3002<\/li>\n<li><a href=\"https:\/\/labs.ripe.net\/Members\/johannes_weinberg\/anycast-primer\" target=\"_new\" rel=\"noopener nofollow\">\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u5165\u9580\u66f8<\/a>: \u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308b\u305d\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5305\u62ec\u7684\u306a\u6982\u8981\u3002<\/li>\n<\/ul>\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001Anycast DNS \u306f\u3001DNS \u30b5\u30fc\u30d3\u30b9\u306e\u52b9\u7387\u3001\u4fe1\u983c\u6027\u3001\u56de\u5fa9\u529b\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u5f37\u529b\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u6280\u8853\u3067\u3059\u3002DNS \u30b5\u30fc\u30d0\u30fc\u3092\u3055\u307e\u3056\u307e\u306a\u5834\u6240\u306b\u6226\u7565\u7684\u306b\u5c55\u958b\u3057\u3001BGP \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001Anycast DNS \u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30aa\u30f3\u30e9\u30a4\u30f3 \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u5b89\u5b9a\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002OneProxy \u304c\u63d0\u4f9b\u3059\u308b\u3088\u3046\u306a\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001DNS \u89e3\u6c7a\u3068\u8ca0\u8377\u5206\u6563\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u3067 Anycast DNS \u3092\u3055\u3089\u306b\u88dc\u5b8c\u3057\u3001\u4e00\u6d41\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u4e0a\u3067\u6b20\u304b\u305b\u306a\u3044\u30d1\u30fc\u30c8\u30ca\u30fc\u306b\u306a\u308a\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u9032\u5316\u3057\u7d9a\u3051\u308b\u4e2d\u3001Anycast DNS \u306f\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3042\u308a\u7d9a\u3051\u3001\u3088\u308a\u5805\u7262\u3067\u5fdc\u7b54\u6027\u306e\u9ad8\u3044\u30aa\u30f3\u30e9\u30a4\u30f3 \u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"featured_media":475629,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-475876","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Anycast DNS: Enhancing Internet Resilience and Performance<\/mark>","faq_items":[{"question":"What is Anycast DNS?","answer":"<p>Anycast DNS is a network addressing technique used to enhance the reliability and performance of Domain Name System (DNS) services. It routes DNS queries to the closest available server using Anycast, resulting in faster and more resilient DNS resolution.<\/p>"},{"question":"How does Anycast DNS work?","answer":"<p>Anycast DNS works by deploying multiple DNS servers across different geographic locations, each with the same IP address. When a user initiates a DNS query, the Border Gateway Protocol (BGP) routes the request to the nearest available DNS server, ensuring a quick response.<\/p>"},{"question":"What are the key benefits of Anycast DNS?","answer":"<p>Anycast DNS offers several key benefits, including load distribution, fault tolerance, latency reduction, and distributed denial of service (DDoS) mitigation. It balances the load across servers, ensures continued service in case of failures, reduces query resolution time, and helps absorb DDoS attacks.<\/p>"},{"question":"What are the types of Anycast DNS?","answer":"<p>There are two main types of Anycast DNS configurations: Single-Service Anycast, which is used solely for DNS services, and Multi-Service Anycast, which applies Anycast to multiple services, enhancing performance and resilience for various applications.<\/p>"},{"question":"How can Anycast DNS be used?","answer":"<p>Anycast DNS has various applications, including Content Delivery Networks (CDNs) for faster content delivery, DNS hosting providers to improve infrastructure resilience, and TLD name servers to ensure speedy resolution at the root level.<\/p>"},{"question":"Are there any challenges related to Anycast DNS implementation?","answer":"<p>While Anycast DNS is highly beneficial, there can be challenges like routing issues, global synchronization delays, and uneven distribution of traffic. Regular network monitoring, optimization, and appropriate Time-to-Live (TTL) settings can address these challenges.<\/p>"},{"question":"How does Anycast DNS relate to proxy servers?","answer":"<p>Proxy servers, like those provided by OneProxy, can complement Anycast DNS by optimizing DNS resolution and load balancing. They play a vital role in enhancing website performance and user experience by strategically deploying servers in various locations.<\/p>"},{"question":"What does the future hold for Anycast DNS?","answer":"<p>As the internet evolves, Anycast DNS is expected to remain crucial for improving internet performance and resilience. Advancements in BGP optimization, monitoring tools, and IPv6 adoption will further enhance Anycast DNS capabilities.<\/p>"},{"question":"Where can I find more information about Anycast DNS?","answer":"<p>For more in-depth insights into Anycast DNS, you can refer to the following resources:<\/p><ul><li><a href=\"https:\/\/tools.ietf.org\/html\/rfc1546\" target=\"_new\">IETF RFC 1546<\/a> - The original document introducing Anycast in the context of IP routing.<\/li><li><a href=\"https:\/\/www.cloudflare.com\/learning\/dns\/glossary\/what-is-anycast-dns\/\" target=\"_new\">DNS Anycast vs. Unicast<\/a> - A comparison of Anycast and Unicast DNS resolution.<\/li><li><a href=\"https:\/\/labs.ripe.net\/Members\/johannes_weinberg\/anycast-primer\" target=\"_new\">Anycast Primer<\/a> - A comprehensive overview of Anycast and its applications in internet routing.<\/li><\/ul>"},{"question":"What can Anycast DNS do for my website?","answer":"<p>Implementing Anycast DNS for your website can significantly improve its performance, responsiveness, and resilience. By reducing query resolution time and enhancing server availability, your users will experience faster load times and a more reliable online experience.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/475876","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\/475876\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/475629"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=475876"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}