{"id":476945,"date":"2023-08-09T09:05:36","date_gmt":"2023-08-09T09:05:36","guid":{"rendered":""},"modified":"2023-09-05T11:13:44","modified_gmt":"2023-09-05T11:13:44","slug":"dns-ttl","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/dns-ttl\/","title":{"rendered":"DNS TTL"},"content":{"rendered":"<p>\u57df\u540d\u7cfb\u7edf\u751f\u5b58\u65f6\u95f4\uff08\u901a\u5e38\u79f0\u4e3a DNS TTL\uff09\u662f\u4e92\u8054\u7f51\u67b6\u6784\u4e0d\u53ef\u6216\u7f3a\u7684\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u5b9a\u4e49\u4e86\u5b58\u50a8\u5728 DNS \u7f13\u5b58\u4e2d\u7684\u6570\u636e\u7684\u4f7f\u7528\u5bff\u547d\u3002\u672c\u6587\u5c06\u63d0\u4f9b\u5173\u4e8e DNS TTL \u7684\u5168\u9762\u6307\u5357\uff0c\u5305\u62ec\u5176\u8d77\u6e90\u3001\u8be6\u7ec6\u4fe1\u606f\u3001\u5185\u90e8\u7ed3\u6784\u3001\u4e3b\u8981\u529f\u80fd\u3001\u7c7b\u578b\u3001\u7528\u9014\u3001\u6bd4\u8f83\u4ee5\u53ca\u5b83\u4e0e OneProxy \u7b49\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5173\u8054\u3002<\/p>\n<h2>DNS TTL \u7684\u8bde\u751f\u53ca\u5176\u9996\u6b21\u63d0\u53ca<\/h2>\n<p>DNS TTL \u7684\u6982\u5ff5\u6700\u65e9\u662f\u5728 1983 \u5e74\u968f\u7740\u57df\u540d\u7cfb\u7edf (DNS) \u7684\u8bde\u751f\u800c\u5f15\u5165\u7684\u3002\u5b83\u662f\u89e3\u51b3\u4e92\u8054\u7f51\u89c4\u6a21\u4e0d\u65ad\u6269\u5927\u6240\u5e26\u6765\u7684\u95ee\u9898\u7684\u4e00\u90e8\u5206\u3002\u5728 DNS \u51fa\u73b0\u4e4b\u524d\uff0c\u4e92\u8054\u7f51\u5e76\u4e0d\u65b9\u4fbf\u7528\u6237\u4f7f\u7528\uff1b\u901a\u4fe1\u4e3b\u8981\u901a\u8fc7 IP \u5730\u5740\u5efa\u7acb\uff0c\u800c IP \u5730\u5740\u5f88\u96be\u8bb0\u4f4f\u548c\u4f7f\u7528\u3002DNS \u7684\u5f15\u5165\u4ee5\u53ca DNS TTL \u7684\u5f15\u5165\u662f\u4e00\u573a\u9769\u547d\uff0c\u5b83\u4f7f\u4e92\u8054\u7f51\u80fd\u591f\u6269\u5c55\u5e76\u53d8\u5f97\u66f4\u52a0\u65b9\u4fbf\u7528\u6237\u4f7f\u7528\u3002<\/p>\n<h2>DNS TTL\uff1a\u6269\u5c55\u89c6\u56fe<\/h2>\n<p>DNS TTL \u662f\u4e00\u79cd\u673a\u5236\uff0c\u7528\u4e8e\u5b9a\u4e49 DNS \u89e3\u6790\u5668\u5e94\u7f13\u5b58\u67e5\u8be2\u57df\u540d\u54cd\u5e94\u7684\u6301\u7eed\u65f6\u95f4\u3002\u5b83\u4ee5\u79d2\u4e3a\u5355\u4f4d\u6307\u5b9a\uff0c\u662f\u8fd4\u56de\u7684 DNS \u8bb0\u5f55\u7684\u4e00\u90e8\u5206\u3002\u89e3\u6790\u57df\u540d\u540e\uff0cDNS \u89e3\u6790\u5668\u4f1a\u7f13\u5b58\u54cd\u5e94\u4ee5\u51cf\u5c11 DNS \u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u5e76\u52a0\u5feb\u5bf9\u540c\u4e00\u57df\u540d\u7684\u540e\u7eed\u67e5\u8be2\u3002DNS TTL \u503c\u5b9a\u4e49\u5e94\u4f55\u65f6\u6e05\u9664\u6216\u5237\u65b0\u6b64\u7f13\u5b58\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5982\u679c DNS TTL \u503c\u8bbe\u7f6e\u4e3a 3600 \u79d2\uff08\u4e00\u5c0f\u65f6\uff09\uff0c\u5219\u89e3\u6790\u5668\u5c06\u4fdd\u7559\u7f13\u5b58\u7684\u54cd\u5e94\u4e00\u5c0f\u65f6\uff0c\u7136\u540e\u4e22\u5f03\u5b83\u5e76\u5411 DNS \u670d\u52a1\u5668\u8bf7\u6c42\u65b0\u7684\u54cd\u5e94\u3002<\/p>\n<h2>DNS TTL \u5185\u90e8\uff1a\u5de5\u4f5c\u673a\u5236<\/h2>\n<p>\u6bcf\u6761 DNS \u8bb0\u5f55\u90fd\u5305\u542b\u4e00\u4e2a TTL \u503c\uff0c\u8be5\u503c\u51b3\u5b9a\u4e86 DNS \u89e3\u6790\u5668\u53ef\u4ee5\u7f13\u5b58\u8be5\u8bb0\u5f55\u7684\u6700\u957f\u65f6\u95f4\u3002\u89e3\u6790\u5668\u5728\u8bb0\u5f55\u7684 TTL \u671f\u9650\u5185\u4fdd\u7559\u8be5\u8bb0\u5f55\u540e\uff0c\u5c06\u4e22\u5f03\u8be5\u8bb0\u5f55\uff0c\u5e76\u4e14\u5bf9\u8be5\u57df\u7684\u4efb\u4f55\u65b0\u8bf7\u6c42\u90fd\u5c06\u5bfc\u81f4\u91cd\u65b0\u67e5\u627e\u3002<\/p>\n<p>\u5982\u679c\u8bb0\u5f55\u4ecd\u5728\u89e3\u6790\u5668\u7684\u7f13\u5b58\u4e2d\u65f6 TTL \u5df2\u8fc7\u671f\uff0c\u5219\u89e3\u6790\u5668\u5c06\u4e0d\u4f1a\u4f7f\u7528\u7f13\u5b58\u7684\u8bb0\u5f55\u3002\u76f8\u53cd\uff0c\u5b83\u5c06\u6267\u884c\u65b0\u7684\u67e5\u627e\uff0c\u83b7\u53d6\u6700\u65b0\u8bb0\u5f55\uff0c\u5e76\u91cd\u65b0\u5f00\u59cb TTL \u5012\u8ba1\u65f6\u3002<\/p>\n<h2>DNS TTL \u7684\u4e3b\u8981\u529f\u80fd<\/h2>\n<p>DNS TTL \u7684\u663e\u8457\u7279\u70b9\u662f\uff1a<\/p>\n<ul>\n<li><strong>\u7f13\u5b58\u7ba1\u7406<\/strong>\uff1aDNS TTL \u7684\u4e3b\u8981\u76ee\u7684\u662f\u63a7\u5236\u89e3\u6790\u5668\u4e2d DNS \u7f13\u5b58\u7684\u5bff\u547d\u3002<\/li>\n<li><strong>\u51cf\u5c11\u8d1f\u8377<\/strong>\uff1a\u901a\u8fc7\u7f13\u5b58\u548c\u91cd\u7528 DNS \u54cd\u5e94\uff0cTTL \u51cf\u5c11\u4e86 DNS \u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u3002<\/li>\n<li><strong>\u51cf\u5c11\u5ef6\u8fdf<\/strong>\uff1a\u7f13\u5b58\u7684 DNS \u54cd\u5e94\u53ef\u4ee5\u66f4\u5feb\u5730\u63d0\u4f9b\uff0c\u4ece\u800c\u901a\u8fc7\u51cf\u5c11\u5ef6\u8fdf\u6765\u6539\u5584\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li><strong>\u52a8\u6001\u66f4\u65b0<\/strong>\uff1a\u8f83\u4f4e\u7684 TTL \u503c\u5141\u8bb8 DNS \u8bb0\u5f55\u4e2d\u7684\u66f4\u6539\uff08\u4f8b\u5982 IP \u5730\u5740\u66f4\u6539\uff09\u66f4\u5feb\u5730\u4f20\u64ad\u3002<\/li>\n<\/ul>\n<h2>\u4e0d\u540c\u7c7b\u578b\u7684 DNS TTL<\/h2>\n<p>DNS TTL \u503c\u53ef\u6839\u636e\u5176\u65f6\u95f4\u957f\u5ea6\u8fdb\u884c\u5206\u7c7b\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>TTL \u6301\u7eed\u65f6\u95f4<\/th>\n<th>\u7c7b\u578b<\/th>\n<th>\u4f7f\u7528\u6848\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u9ad8\uff081 \u5929\uff09<\/td>\n<td>\u957f TTL<\/td>\n<td>\u7a33\u5b9a\u7684\u57df\u540d\uff0c\u5f88\u5c11\u53d1\u751f\u53d8\u66f4<\/td>\n<\/tr>\n<tr>\n<td>\u4e2d\u7b49\uff081 \u5c0f\u65f6\uff09<\/td>\n<td>\u4e2d\u7b49 TTL<\/td>\n<td>\u5076\u5c14\u66f4\u6539\u7684\u57df\u540d<\/td>\n<\/tr>\n<tr>\n<td>\u4f4e\uff081 \u5206\u949f\uff09<\/td>\n<td>\u77ed TTL<\/td>\n<td>\u9ad8\u5ea6\u52a8\u6001\u7684\u57df\u6216\u4e34\u65f6\u91cd\u5b9a\u5411<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS TTL\uff1a\u5229\u7528\u3001\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>DNS TTL \u5728\u4f18\u5316\u670d\u52a1\u5668\u8d1f\u8f7d\u548c\u51cf\u5c11\u5ef6\u8fdf\u65b9\u9762\u8d77\u7740\u5173\u952e\u4f5c\u7528\u3002\u7136\u800c\uff0c\u5176\u4f7f\u7528\u4e0d\u5f53\u53ef\u80fd\u4f1a\u5bfc\u81f4 DNS \u4f20\u64ad\u5ef6\u8fdf\u6216\u670d\u52a1\u5668\u8d1f\u8f7d\u8fc7\u9ad8\u7b49\u95ee\u9898\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u8bbe\u7f6e\u975e\u5e38\u4f4e\u7684 TTL \u5c06\u786e\u4fdd\u66f4\u6539\u5feb\u901f\u4f20\u64ad\uff0c\u4f46\u4e5f\u53ef\u80fd\u5bfc\u81f4 DNS \u670d\u52a1\u5668\u8d1f\u8f7d\u589e\u52a0\uff0c\u56e0\u4e3a\u7f13\u5b58\u6761\u76ee\u4f1a\u66f4\u9891\u7e41\u5730\u8fc7\u671f\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u975e\u5e38\u9ad8\u7684 TTL \u53ef\u80fd\u4f1a\u5bfc\u81f4\u66f4\u6539\u4f20\u64ad\u901f\u5ea6\u53d8\u6162\u3002<\/p>\n<p>\u9700\u8981\u6839\u636e\u9886\u57df\u7684\u5177\u4f53\u8981\u6c42\u5728\u8fd9\u4e24\u4e2a\u6781\u7aef\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n<h2>DNS TTL \u7684\u6bd4\u8f83\u548c\u7279\u70b9<\/h2>\n<p>\u5c06 DNS TTL \u4e0e\u5176\u4ed6\u7cfb\u7edf\u4e2d\u7684\u7c7b\u4f3c\u673a\u5236\u8fdb\u884c\u6bd4\u8f83\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u673a\u5236<\/th>\n<th>\u7cfb\u7edf<\/th>\n<th>\u76ee\u7684<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DNS TTL<\/td>\n<td>\u57df\u540d\u7cfb\u7edf<\/td>\n<td>\u63a7\u5236 DNS \u7f13\u5b58\u7684\u5bff\u547d<\/td>\n<\/tr>\n<tr>\n<td>HTTP \u7f13\u5b58\u63a7\u5236<\/td>\n<td>\u7f51\u9875\u6d4f\u89c8<\/td>\n<td>\u5b9a\u4e49\u6d4f\u89c8\u5668\u7f13\u5b58\u7b56\u7565<\/td>\n<\/tr>\n<tr>\n<td>TCP \u8d85\u65f6<\/td>\n<td>TCP\/IP<\/td>\n<td>\u63a7\u5236 TCP \u4f1a\u8bdd\u5bff\u547d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS TTL\uff1a\u672a\u6765\u524d\u666f\u548c\u6280\u672f<\/h2>\n<p>\u672a\u6765\u4e0e DNS TTL \u76f8\u5173\u7684\u6280\u672f\u53ef\u80fd\u4f1a\u4e13\u6ce8\u4e8e\u81ea\u9002\u5e94 TTL\uff0c\u5176\u4e2d TTL \u503c\u53ef\u4ee5\u6839\u636e\u7f51\u7edc\u6761\u4ef6\u3001\u7528\u6237\u884c\u4e3a\u6216\u5176\u4ed6\u53c2\u6570\u52a8\u6001\u8c03\u6574\u3002\u8fd9\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236 DNS \u7f13\u5b58\u548c\u6574\u4f53\u4e92\u8054\u7f51\u6027\u80fd\u3002<\/p>\n<h2>\u4ee3\u7406\u670d\u52a1\u5668\u548c DNS TTL<\/h2>\n<p>\u4ee3\u7406\u670d\u52a1\u5668\uff08\u5982 OneProxy\uff09\u4f7f\u7528 DNS \u6765\u89e3\u6790\u6240\u8bbf\u95ee\u7f51\u7ad9\u7684\u57df\u540d\u3002DNS TTL \u503c\u4f1a\u5f71\u54cd\u4ee3\u7406\u670d\u52a1\u5668\u7684\u6027\u80fd\u548c\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u5982\u679c\u67d0\u4e2a\u7f51\u7ad9\u66f4\u6539\u4e86\u5176 IP \u5730\u5740\uff0c\u5e76\u4e14 DNS TTL \u503c\u8f83\u9ad8\uff0c\u5219\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u80fd\u4f1a\u7ee7\u7eed\u4f7f\u7528\u65e7 IP \u5730\u5740\uff0c\u76f4\u5230 TTL \u5230\u671f\uff0c\u4ece\u800c\u53ef\u80fd\u5bfc\u81f4\u4ee3\u7406\u670d\u52a1\u4e2d\u65ad\u3002<\/p>\n<h2>\u76f8\u5173\u94fe\u63a5<\/h2>\n<p>\u4e3a\u4e86\u8fdb\u4e00\u6b65\u9605\u8bfb\u548c\u4e86\u89e3 DNS TTL\uff0c\u4ee5\u4e0b\u8d44\u6e90\u53ef\u80fd\u4f1a\u6709\u6240\u5e2e\u52a9\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/www.oreilly.com\/library\/view\/dns-and-bind\/0596100574\/\" target=\"_new\" rel=\"noopener nofollow\">DNS \u548c BIND\uff0c\u7b2c 5 \u7248\uff08\u4f5c\u8005\uff1aCricket Liu \u548c Paul Albitz\uff09<\/a><\/li>\n<li><a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc1035\" target=\"_new\" rel=\"noopener nofollow\">RFC 1035\uff08\u57df\u540d - \u5b9e\u65bd\u548c\u89c4\u8303\uff09<\/a><\/li>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/dns\/dns-ttl\/\" target=\"_new\" rel=\"noopener nofollow\">DNS TTL<\/a><\/li>\n<li><a href=\"https:\/\/ns1.com\/resources\/understanding-dns-ttl-values\" target=\"_new\" rel=\"noopener nofollow\">\u4e86\u89e3 DNS TTL<\/a><\/li>\n<\/ul>\n<p>\u672c\u7efc\u5408\u6307\u5357\u65e8\u5728\u8ba9\u60a8\u6e05\u695a\u5730\u4e86\u89e3 DNS TTL\uff0c\u8fd9\u662f\u4e92\u8054\u7f51\u8fd0\u4f5c\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5b83\u6709\u52a9\u4e8e\u7ba1\u7406\u670d\u52a1\u5668\u8d1f\u8f7d\u3001\u51cf\u5c11\u5ef6\u8fdf\uff0c\u5e76\u4e14\u662f\u4f7f\u7528 OneProxy \u7b49\u4ee3\u7406\u670d\u52a1\u5668\u65f6\u7684\u4e00\u4e2a\u91cd\u8981\u8003\u8651\u56e0\u7d20\u3002<\/p>","protected":false},"featured_media":476946,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476945","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>DNS TTL: Unravelling the Mechanism of Domain Name System Time to Live<\/mark>","faq_items":null},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/476945","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/476945\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/476946"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=476945"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}