{"id":2342,"date":"2026-10-20T06:03:09","date_gmt":"2026-10-20T06:03:09","guid":{"rendered":"https:\/\/junglelabs.uk\/"},"modified":"2026-10-20T06:03:09","modified_gmt":"2026-10-20T06:03:09","slug":"what-is-dns-propagation-why-dns-changes-take-time","status":"publish","type":"post","link":"https:\/\/junglelabs.uk\/zh\/what-is-dns-propagation-why-dns-changes-take-time\/","title":{"rendered":"\u4ec0\u4e48\u662fDNS\u4f20\u64ad\uff1f\u4e3a\u4ec0\u4e48DNS\u66f4\u6539\u9700\u8981\u65f6\u95f4"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u4f60\u66f4\u65b0\u4e86\u57df\u540d\u7684 DNS \u8bb0\u5f55\uff0c\u4fdd\u5b58\u66f4\u6539\u540e\uff0c\u671f\u671b\u65b0\u7684\u7f51\u7ad9\u6216\u90ae\u4ef6\u670d\u52a1\u7acb\u5373\u751f\u6548\u3002\u4f46\u540c\u4e8b\u4ecd\u770b\u5230\u65e7\u7f51\u7ad9\uff0c\u5728\u7ebf\u68c0\u67e5\u5de5\u5177\u663e\u793a\u4e0d\u540c\u7684\u5730\u5740\uff0c\u6216\u8005\u7535\u5b50\u90ae\u4ef6\u4f20\u9012\u884c\u4e3a\u4e0d\u4e00\u81f4\u3002\u8fd9\u79cd\u5ef6\u8fdf\u901a\u5e38\u88ab\u79f0\u4e3a <strong>DNS\u4f20\u64ad<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u8868\u8ff0\u53ef\u80fd\u8ba9\u4eba\u8bef\u4ee5\u4e3a\u5355\u4e2a\u66f4\u65b0\u6b63\u5728\u901a\u8fc7\u4e00\u4e2a\u4e2d\u592e\u4e92\u8054\u7f51\u7cfb\u7edf\u8fdb\u884c\u4f20\u8f93\u3002\u7136\u800c\uff0cDNS \u662f\u5206\u5e03\u5f0f\u7684\u3002\u57df\u540d\u4fe1\u606f\u5b58\u50a8\u5728\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u3001\u9012\u5f52\u89e3\u6790\u5668\u3001\u8def\u7531\u5668\u3001\u64cd\u4f5c\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5e76\u88ab\u7f13\u5b58\u5728\u8fd9\u4e9b\u7cfb\u7edf\u4e2d\u3002\u6bcf\u4e2a\u7cfb\u7edf\u53ef\u80fd\u4f1a\u5728\u4e0d\u540c\u7684\u65f6\u95f4\u5237\u65b0\u5176\u4fe1\u606f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u591a\u6570 DNS \u66f4\u6539\u5728\u7f13\u5b58\u8fc7\u671f\u4e14\u89e3\u6790\u5668\u83b7\u53d6\u65b0\u8bb0\u5f55\u65f6\u624d\u4f1a\u751f\u6548\u3002\u8fd9\u4e00\u8fc7\u7a0b\u6240\u9700\u7684\u65f6\u95f4\u53d6\u51b3\u4e8e\u8bb0\u5f55\u7684\u5148\u524d\u751f\u5b58\u65f6\u95f4\uff08TTL\uff09\u3001\u89e3\u6790\u5668\u7684\u884c\u4e3a\u4ee5\u53ca\u6743\u5a01 DNS \u914d\u7f6e\u662f\u5426\u6b63\u786e\u3002\u4e0d\u5b58\u5728\u4e00\u4e2a\u80fd\u786e\u4fdd\u6240\u6709\u7528\u6237\u90fd\u770b\u5230\u65b0\u7b54\u6848\u7684\u901a\u7528\u65f6\u95f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6307\u5357\u89e3\u91ca\u4e86\u4eba\u4eec\u6240\u8bf4\u7684 DNS \u4f20\u64ad\u7684\u542b\u4e49\u3001\u4e3a\u4ec0\u4e48 DNS \u66f4\u6539\u4f1a\u5728\u4e0d\u540c\u65f6\u95f4\u751f\u6548\u3001\u5982\u4f55\u68c0\u67e5\u57df\u540d\u7684\u5f53\u524d\u89e3\u6790\u7ed3\u679c\uff0c\u4ee5\u53ca\u5728\u66f4\u65b0\u4f3c\u4e4e\u4ecd\u672a\u5b8c\u6210\u65f6\u5e94\u91c7\u53d6\u7684\u63aa\u65bd\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662fDNS\u4f20\u64ad\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DNS \u4f20\u64ad\u662f\u5e38\u89c1\u7684\u672f\u8bed\uff0c\u7528\u4e8e\u63cf\u8ff0\u5728 DNS \u8bb0\u5f55\u66f4\u6539\u540e\uff0c\u4e0d\u540c\u7528\u6237\u6216 DNS \u89e3\u6790\u5668\u53ef\u80fd\u6536\u5230\u4e0d\u540c\u7b54\u6848\u7684\u8fd9\u6bb5\u65f6\u95f4\u3002\u4e00\u4e2a\u7f51\u7edc\u4e2d\u7684\u7528\u6237\u53ef\u80fd\u5df2\u7ecf\u770b\u5230\u65b0\u7684 IP \u5730\u5740\uff0c\u800c\u53e6\u4e00\u4e2a\u7528\u6237\u7684\u89e3\u6790\u5668\u5219\u7ee7\u7eed\u8fd4\u56de\u7f13\u5b58\u7684\u65e7\u5730\u5740\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u57df\u540d\u7684\u5e95\u5c42 DNS \u66f4\u6539\u662f\u5728\u8be5\u57df\u540d\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u4e0a\u8fdb\u884c\u7684\u3002\u9012\u5f52\u89e3\u6790\u5668\u968f\u540e\u4f1a\u4e3a\u7528\u6237\u68c0\u7d22\u5e76\u7f13\u5b58\u8fd9\u4e9b\u8bb0\u5f55\u3002\u8fd9\u4e9b\u89e3\u6790\u5668\u5e76\u4e0d\u4e00\u5b9a\u5728\u6bcf\u6b21\u6709\u4eba\u8bbf\u95ee\u8be5\u57df\u540d\u65f6\u90fd\u518d\u6b21\u5411\u6743\u5a01\u670d\u52a1\u5668\u67e5\u8be2\u3002\u53ea\u8981\u7f13\u5b58\u7684\u7b54\u6848\u4ecd\u7136\u6709\u6548\uff0c\u5b83\u4eec\u5c31\u53ef\u4ee5\u91cd\u590d\u4f7f\u7528\u5df2\u7f13\u5b58\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u201c\u4f20\u64ad\u201d\u66f4\u5e94\u88ab\u7406\u89e3\u4e3a <strong>\u7f13\u5b58\u8fc7\u671f\u548c\u5237\u65b0<\/strong>\u4e0d\u5b58\u5728\u5fc5\u987b\u5728\u6240\u6709\u8054\u7f51\u8bbe\u5907\u4e0a\u540c\u65f6\u66f4\u65b0\u7684\u4e2d\u592e\u526f\u672c\u3002\u5373\u4f7f\u67d0\u4e9b\u89e3\u6790\u5668\u4ecd\u5728\u63d0\u4f9b\u8f83\u65e7\u7684\u7f13\u5b58\u6570\u636e\uff0c\u6743\u5a01\u8bb0\u5f55\u53ef\u80fd\u5df2\u7ecf\u6b63\u786e\u65e0\u8bef\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DNS \u7f13\u5b58\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u6d4f\u89c8\u5668\u9700\u8981\u67e5\u627e\u57df\u540d\u7684IP\u5730\u5740\u65f6\uff0c\u5b83\u4f1a\u8bf7\u6c42\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u884c\u540d\u79f0\u89e3\u6790\u3002\u64cd\u4f5c\u7cfb\u7edf\u53ef\u80fd\u5df2\u6709\u7f13\u5b58\u7684\u7b54\u6848\u3002\u5982\u679c\u6ca1\u6709\uff0c\u5b83\u4f1a\u5411\u4e00\u4e2a\u914d\u7f6e\u7684\u9012\u5f52\u89e3\u6790\u5668\u53d1\u8d77\u67e5\u8be2\uff0c\u4f8b\u5982\u7531\u4e92\u8054\u7f51\u670d\u52a1\u63d0\u4f9b\u5546\u3001\u4f01\u4e1a\u6216\u516c\u5171DNS\u670d\u52a1\u8fd0\u8425\u7684\u89e3\u6790\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9012\u5f52\u89e3\u6790\u5668\u4e5f\u53ef\u80fd\u62e5\u6709\u7f13\u5b58\u7684\u7b54\u6848\u3002\u5982\u679c\u8be5\u7b54\u6848\u4ecd\u5728\u7f13\u5b58\u6709\u6548\u671f\u5185\uff0c\u5b83\u53ef\u4ee5\u76f4\u63a5\u8fd4\u56de\u800c\u65e0\u9700\u8054\u7cfb\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u3002\u5f53\u7f13\u5b58\u8bb0\u5f55\u8fc7\u671f\u65f6\uff0c\u89e3\u6790\u5668\u53ef\u4ee5\u67e5\u8be2\u6743\u5a01DNS\u7cfb\u7edf\u5e76\u5b58\u50a8\u66f4\u65b0\u540e\u7684\u7b54\u6848\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f13\u5b58\u53ef\u4ee5\u51cf\u5c11\u67e5\u627e\u65f6\u95f4\u5e76\u964d\u4f4e\u5bf9 DNS \u57fa\u7840\u8bbe\u65bd\u7684\u8d1f\u8f7d\u3002\u8fd9\u4e5f\u610f\u5473\u7740\u8bb0\u5f55\u66f4\u6539\u4e0d\u4e00\u5b9a\u5728\u540c\u4e00\u65f6\u523b\u5bf9\u6240\u6709\u89e3\u6790\u5668\u53ef\u89c1\u3002\u65e7\u7b54\u6848\u5728\u89e3\u6790\u5668\u7684\u7f13\u5b58\u8fc7\u671f\u6216\u89e3\u6790\u5668\u4ee5\u5176\u4ed6\u65b9\u5f0f\u5237\u65b0\u4e4b\u524d\uff0c\u4ecd\u7136\u53ef\u4ee5\u88ab\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u540c\u7684\u7528\u6237\u53ef\u80fd\u4f7f\u7528\u4e0d\u540c\u7684\u9012\u5f52\u89e3\u6790\u5668\u3002\u5373\u4f7f\u5728\u540c\u4e00\u5bb6\u5ead\u4e2d\uff0c\u5982\u679c\u4ed6\u4eec\u7684\u8bbe\u5907\u4f7f\u7528\u4e0d\u540c\u7684 DNS \u670d\u52a1\u3001VPN\u3001\u79fb\u52a8\u7f51\u7edc\u6216\u672c\u5730\u7f13\u5b58\uff0c\u4ed6\u4eec\u770b\u5230\u7684\u56de\u7b54\u4e5f\u53ef\u80fd\u4e0d\u540c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u4e2d\u7684TTL\u662f\u4ec0\u4e48\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TTL \u4ee3\u8868 <strong>\u5b58\u6d3b\u65f6\u95f4<\/strong>\u5b83\u662f\u4e00\u4e2a\u503c\uff0c\u901a\u5e38\u4ee5\u79d2\u4e3a\u5355\u4f4d\u6d4b\u91cf\uff0c\u7528\u4e8e\u544a\u77e5\u9012\u5f52\u89e3\u6790\u5668\u5728\u68c0\u67e5\u66f4\u65b0\u7b54\u6848\u4e4b\u524d\u53ef\u4ee5\u7f13\u5b58DNS\u8bb0\u5f55\u7684\u65f6\u95f4\u957f\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0cTTL \u4e3a <code>3600<\/code> \u8868\u793a\u4e00\u5c0f\u65f6\u3002\u5982\u679c\u89e3\u6790\u5668\u68c0\u7d22\u5230\u5177\u6709\u8be5TTL\u7684\u8bb0\u5f55\uff0c\u5b83\u901a\u5e38\u53ef\u4ee5\u5728\u9700\u8981\u5237\u65b0\u4e4b\u524d\u7ee7\u7eed\u4f7f\u7528\u7b54\u6848\u957f\u8fbe\u4e00\u5c0f\u65f6\u3002TTL\u4e3a <code>300<\/code> \u610f\u601d\u662f\u4e94\u5206\u949f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u6539\u540e\u771f\u6b63\u91cd\u8981\u7684TTL\u901a\u5e38\u662f\u89e3\u6790\u5668\u5df2\u7ecf\u7f13\u5b58\u7684\u65e7\u8bb0\u5f55\u7684TTL\u3002\u5728\u66f4\u6539\u8bb0\u5f55\u4e4b\u524d\u7acb\u5373\u964d\u4f4eTTL\u53ef\u80fd\u4e0d\u4f1a\u7f29\u77ed\u90a3\u4e9b\u5df2\u7f13\u5b58\u5148\u524d\u8f83\u9ad8TTL\u7684\u89e3\u6790\u5668\u7684\u7b49\u5f85\u65f6\u95f4\u3002\u8fd9\u4e9b\u89e3\u6790\u5668\u53ef\u80fd\u4f1a\u7ee7\u7eed\u4f7f\u7528\u65e7\u7684\u54cd\u5e94\uff0c\u76f4\u5230\u539f\u59cb\u7f13\u5b58\u671f\u7ed3\u675f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u8ba1\u5212\u4e2d\u7684\u8fc1\u79fb\uff0c\u7ba1\u7406\u5458\u901a\u5e38\u4f1a\u63d0\u524d\u964d\u4f4e TTL \u503c\uff0c\u7b49\u5f85\u8db3\u591f\u957f\u7684\u65f6\u95f4\u8ba9\u4e4b\u524d\u7684 TTL \u8fc7\u671f\uff0c\u7136\u540e\u8fdb\u884c DNS \u66f4\u6539\u3002\u5728\u66f4\u6539\u7a33\u5b9a\u540e\uff0c\u4ed6\u4eec\u53ef\u80fd\u4f1a\u518d\u6b21\u589e\u52a0 TTL \u503c\u4ee5\u51cf\u5c11\u91cd\u590d\u67e5\u8be2\u3002\u5408\u9002\u7684\u503c\u53d6\u51b3\u4e8e\u670d\u52a1\u548c\u8fd0\u8425\u5546\u7684\u53d8\u66f4\u6d41\u7a0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48DNS\u66f4\u6539\u9700\u8981\u4e0d\u540c\u7684\u65f6\u95f4\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5e38\u89c1\u7684\u539f\u56e0\u662f\u89e3\u6790\u5668\u62e5\u6709\u4e0d\u540c\u7684\u7f13\u5b58\u526f\u672c\u3002\u67d0\u4e9b\u89e3\u6790\u5668\u53ef\u80fd\u5df2\u7ecf\u5237\u65b0\u4e86\u8bb0\u5f55\uff0c\u800c\u5176\u4ed6\u89e3\u6790\u5668\u4ecd\u5728\u4f7f\u7528\u672a\u8fc7\u671f\u7684\u7b54\u6848\u3002\u89e3\u6790\u5668\u8fd8\u53ef\u80fd\u5e94\u7528\u5176\u81ea\u8eab\u7684\u5237\u65b0\u884c\u4e3a\u6216\u7f13\u5b58\u5426\u5b9a\u7b54\u6848\uff0c\u5373\u8868\u793a\u67d0\u6761\u8bb0\u5f55\u4e0d\u5b58\u5728\u7684\u54cd\u5e94\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u5730\u7f13\u5b58\u53ef\u4ee5\u589e\u52a0\u53e6\u4e00\u5c42\u3002\u8ba1\u7b97\u673a\u3001\u8def\u7531\u5668\u3001\u6d4f\u89c8\u5668\u6216\u5b89\u5168\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u6682\u65f6\u4fdd\u7559 DNS \u4fe1\u606f\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u91cd\u542f\u6d4f\u89c8\u5668\u6216\u6e05\u9664\u64cd\u4f5c\u7cfb\u7edf\u7684 DNS \u7f13\u5b58\u53ef\u80fd\u4f1a\u6709\u6240\u5e2e\u52a9\uff0c\u4f46\u8fd9\u4e0d\u4f1a\u6539\u53d8\u9012\u5f52\u89e3\u6790\u5668\u4ecd\u7136\u7f13\u5b58\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DNS \u63d0\u4f9b\u5546\u7684\u66f4\u6539\u53ef\u80fd\u4f1a\u5f15\u5165\u989d\u5916\u7684\u65f6\u95f4\u56e0\u7d20\u3002\u5982\u679c\u60a8\u5728\u6ce8\u518c\u5546\u5904\u66f4\u6539\u57df\u540d\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\uff0c\u89e3\u6790\u5668\u53ef\u80fd\u8fd8\u9700\u8981\u5237\u65b0\u59d4\u6d3e\u4fe1\u606f\u4ee5\u53ca\u8fd9\u4e9b\u540d\u79f0\u670d\u52a1\u5668\u63d0\u4f9b\u7684\u8bb0\u5f55\u3002\u8fd9\u4e0e\u5728\u540c\u4e00 DNS \u6258\u7ba1\u670d\u52a1\u5185\u7f16\u8f91 A \u6216 AAAA \u8bb0\u5f55\u7684\u66f4\u6539\u4e0d\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\uff0c\u66f4\u65b0\u5728\u6743\u5a01\u6e90\u4e0a\u53ef\u80fd\u4e0d\u6b63\u786e\u3002\u5982\u679c\u7f16\u8f91\u4e86\u9519\u8bef\u7684\u8bb0\u5f55\u3001\u66f4\u6539\u672a\u4fdd\u5b58\u3001\u57df\u540d\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\uff0c\u6216\u8005\u8bb0\u5f55\u5305\u542b\u8bed\u6cd5\u9519\u8bef\uff0c\u7b49\u5f85\u65e0\u6cd5\u89e3\u51b3\u5e95\u5c42\u7684\u914d\u7f6e\u95ee\u9898\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DNS\u4f20\u64ad\u4e0e\u6743\u5a01DNS\u66f4\u65b0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6743\u5a01DNS\u670d\u52a1\u5668\u63d0\u4f9b\u57df\u540d\u6216\u533a\u57df\u7684\u5b98\u65b9\u8bb0\u5f55\u3002\u5f53\u60a8\u5728DNS\u63d0\u4f9b\u5546\u7684\u63a7\u5236\u9762\u677f\u4e2d\u7f16\u8f91\u8bb0\u5f55\u65f6\uff0c\u63d0\u4f9b\u5546\u5e94\u66f4\u65b0\u5176\u63d0\u4f9b\u7684\u6743\u5a01\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9012\u5f52\u89e3\u6790\u5668\u5411\u5ba2\u6237\u7aef\u8bbe\u5907\u63d0\u4f9bDNS\u7b54\u6848\u3002\u5b83\u53ef\u80fd\u7f13\u5b58\u4e86\u66f4\u6539\u4e4b\u524d\u7684\u6570\u636e\u3002\u56e0\u6b64\uff0c\u6743\u5a01\u670d\u52a1\u5668\u53ef\u4ee5\u8fd4\u56de\u65b0\u5730\u5740\uff0c\u800c\u9012\u5f52\u89e3\u6790\u5668\u7ee7\u7eed\u8fd4\u56de\u65e7\u5730\u5740\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u6545\u969c\u6392\u9664\u65f6\uff0c\u8fd9\u79cd\u533a\u5206\u5f88\u6709\u7528\u3002\u9996\u5148\u68c0\u67e5\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u8fd4\u56de\u7684\u5185\u5bb9\u3002\u5982\u679c\u5b83\u4eec\u5df2\u7ecf\u8fd4\u56de\u4e86\u9884\u671f\u7684\u8bb0\u5f55\uff0c\u5219\u8bf4\u660e\u66f4\u6539\u5df2\u5728\u6e90\u7aef\u53d1\u5e03\uff0c\u5269\u4f59\u5dee\u5f02\u53ef\u80fd\u662f\u7531\u4e8e\u7f13\u5b58\u6216\u89e3\u6790\u5668\u884c\u4e3a\u6240\u81f4\u3002\u5982\u679c\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u4ecd\u7136\u8fd4\u56de\u65e7\u503c\u6216\u65e0\u503c\uff0c\u5219\u5e94\u8c03\u67e5 DNS \u63d0\u4f9b\u5546\u7684\u914d\u7f6e\u4ee5\u53ca\u8bb0\u5f55\u672c\u8eab\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u6539\u540d\u79f0\u670d\u52a1\u5668\u4f1a\u589e\u52a0\u53e6\u4e00\u4e2a\u5c42\u6b21\u3002\u7236 DNS \u533a\u57df\u5fc5\u987b\u6307\u5411\u9884\u671f\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\uff0c\u5e76\u4e14\u8fd9\u4e9b\u670d\u52a1\u5668\u5fc5\u987b\u63d0\u4f9b\u6b63\u786e\u7684\u533a\u57df\u6570\u636e\u3002\u5982\u679c\u57df\u540d\u88ab\u59d4\u6d3e\u7ed9\u5176\u4ed6\u63d0\u4f9b\u5546\u7684\u540d\u79f0\u670d\u52a1\u5668\uff0c\u90a3\u4e48 DNS \u63d0\u4f9b\u5546\u4e0a\u7684\u6b63\u786e\u8bb0\u5f55\u5c06\u6beb\u65e0\u7528\u5904\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u7684DNS\u66f4\u6539\u53ca\u5176\u5f71\u54cd<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u53d8\u4e00\u4e2a <strong>\u4e00\u6761\u8bb0\u5f55<\/strong> changes the IPv4 address returned for a hostname. Changing an <strong>AAAA \u8bb0\u5f55<\/strong> \u66f4\u6539\u5176IPv6\u5730\u5740\u3002\u5982\u679c\u4e24\u8005\u90fd\u5b58\u5728\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u6839\u636e\u5176\u7f51\u7edc\u548c\u8fde\u63a5\u884c\u4e3a\u9009\u62e9\u4f7f\u7528\u4efb\u4e00\u5730\u5740\u65cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u53d8\u4e00\u4e2a <strong>CNAME\u8bb0\u5f55<\/strong> \u66f4\u6539\u522b\u540d\u6240\u6307\u5411\u7684\u4e3b\u673a\u540d\u3002\u89e3\u6790\u5668\u53ef\u80fd\u968f\u540e\u9700\u8981\u67e5\u627e\u76ee\u6807\u540d\u79f0\u53ca\u5176\u5730\u5740\u3002\u5373\u4f7f CNAME \u672c\u8eab\u4fdd\u6301\u4e0d\u53d8\uff0c\u5bf9\u76ee\u6807\u8bb0\u5f55\u7684\u4efb\u4f55\u66f4\u6539\u90fd\u53ef\u80fd\u5f71\u54cd\u6700\u7ec8\u7ed3\u679c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u53d8\u4e00\u4e2a <strong>MX\u8bb0\u5f55<\/strong> \u5f71\u54cd\u63a5\u6536\u8be5\u57df\u7535\u5b50\u90ae\u4ef6\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u3002\u90ae\u4ef6\u7cfb\u7edf\u53ef\u80fd\u4f1a\u7f13\u5b58\u8fd9\u4e9b\u8bb0\u5f55\uff0c\u56e0\u6b64\u7535\u5b50\u90ae\u4ef6\u8def\u7531\u53ef\u80fd\u9700\u8981\u4e00\u6bb5\u65f6\u95f4\u624d\u80fd\u53cd\u6620\u66f4\u65b0\u3002\u5728\u66f4\u6539\u90ae\u4ef6\u63d0\u4f9b\u5546\u65f6\uff0c\u7ba1\u7406\u5458\u5e94\u5355\u72ec\u9a8c\u8bc1 MX \u8bb0\u5f55\u4ee5\u53ca\u4efb\u4f55\u76f8\u5173\u7684\u90ae\u4ef6\u8eab\u4efd\u9a8c\u8bc1\u8bb0\u5f55\uff0c\u4f8b\u5982 SPF\u3001DKIM \u6216 DMARC\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u53d8 <strong>\u540d\u79f0\u670d\u52a1\u5668<\/strong> \u66f4\u6539\u5bf9\u57df\u540d\u5177\u6709\u6743\u5a01\u6027\u7684 DNS \u63d0\u4f9b\u5546\u3002\u8fd9\u9700\u8981\u5728\u6ce8\u518c\u5546\u5904\u8fdb\u884c\u6b63\u786e\u7684\u59d4\u6d3e\uff0c\u5e76\u5728\u65b0\u63d0\u4f9b\u5546\u5904\u6b63\u786e\u914d\u7f6e\u533a\u57df\u3002\u7531\u4e8e\u65b0\u63d0\u4f9b\u5546\u5904\u7f3a\u5c11\u8bb0\u5f55\u53ef\u80fd\u5bfc\u81f4\u7f51\u7ad9\u3001\u7535\u5b50\u90ae\u4ef6\u6216\u5176\u4ed6\u670d\u52a1\u4e0d\u53ef\u7528\uff0c\u56e0\u6b64\u5e94\u4ed4\u7ec6\u89c4\u5212\u540d\u79f0\u670d\u52a1\u5668\u8fc1\u79fb\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u68c0\u67e5DNS\u66f4\u6539\u662f\u5426\u5df2\u751f\u6548<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u4ece\u60a8\u6b63\u5728\u4f7f\u7528\u7684\u8ba1\u7b97\u673a\u67e5\u8be2\u57df\u540d\u3002\u5728 Windows\u3001macOS \u548c Linux \u4e0a\uff0c <code>nslookup<\/code> \u901a\u5e38\u53ef\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nslookup example.com<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u68c0\u67e5 IPv4 \u5730\u5740\u8bb0\u5f55\uff0c\u8bf7\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nslookup -type=A example.com<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8eIPv6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nslookup -type=AAAA example.com<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u90ae\u4ef6\u670d\u52a1\u5668\u8bb0\u5f55\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nslookup -type=MX example.com<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 macOS \u548c Linux \u4e0a\uff0c <code>dig<\/code> \u63d0\u4f9b\u66f4\u8be6\u7ec6\u7684\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig example.com A<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ec5\u663e\u793a\u7b54\u6848\u90e8\u5206\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig example.com A +noall +answer<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u60a8\u53ef\u4ee5\u67e5\u8be2\u7279\u5b9a\u7684\u9012\u5f52\u89e3\u6790\u5668\u4ee5\u6bd4\u8f83\u7b54\u6848\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig @1.1.1.1 example.com A<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 Windows \u4e0a\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6307\u5b9a DNS \u670d\u52a1\u5668\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nslookup example.com 1.1.1.1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u66ff\u6362 <code>example.com<\/code> \u4f7f\u7528\u60a8\u7684\u57df\u540d\u3002\u8fd9\u4e9b\u793a\u4f8b\u4e2d\u7684\u89e3\u6790\u5668\u5730\u5740\u4ec5\u662f\u5176\u4e2d\u4e00\u4e2a\u53ef\u80fd\u7684\u516c\u5171\u89e3\u6790\u5668\uff1b\u60a8\u4e5f\u53ef\u4ee5\u67e5\u8be2\u60a8\u6240\u5728\u7ec4\u7ec7\u6216\u63d0\u4f9b\u5546\u4f7f\u7528\u7684DNS\u670d\u52a1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bb0\u5f55\u4f60\u67e5\u8be2\u7684\u89e3\u6790\u5668\u3001\u54cd\u5e94\u4ee5\u53ca\u65f6\u95f4\u3002\u6bd4\u8f83\u591a\u4e2a\u89e3\u6790\u5668\u7684\u7ed3\u679c\u6709\u52a9\u4e8e\u786e\u5b9a\u5dee\u5f02\u662f\u4ec5\u9650\u4e8e\u67d0\u4e2a\u89e3\u6790\u5668\uff0c\u8fd8\u662f\u66f4\u5e7f\u6cdb\u5730\u51fa\u73b0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u67e5\u8be2\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u67e5\u627e\u57df\u540d\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\uff0c\u8bf7\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig example.com NS<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\u76f4\u63a5\u67e5\u8be2\u5176\u4e2d\u4e00\u4e2a\u540d\u79f0\u670d\u52a1\u5668\uff0c\u83b7\u53d6\u4f60\u66f4\u6539\u7684\u8bb0\u5f55\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig @ns1.example-dns.com example.com A<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u66ff\u6362 <code>ns1.example-dns.com<\/code> \u5bf9\u4e8e\u60a8\u7684\u57df\u540d\u5217\u51fa\u4e86\u6743\u5a01\u670d\u52a1\u5668\u3002\u5982\u679c\u76f4\u63a5\u67e5\u8be2\u8fd4\u56de\u9884\u671f\u7684\u5730\u5740\uff0c\u4f46\u9012\u5f52\u89e3\u6790\u5668\u8fd4\u56de\u7684\u662f\u65e7\u5730\u5740\uff0c\u5219\u6743\u5a01\u6570\u636e\u5df2\u66f4\u65b0\uff0c\u800c\u89e3\u6790\u5668\u53ef\u80fd\u4ecd\u5728\u4f7f\u7528\u7f13\u5b58\u7684\u7b54\u6848\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f60\u4e5f\u53ef\u4ee5\u95ee <code>dig<\/code> \u8ffd\u8e2a\u59d4\u6d3e\u6d41\u7a0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig +trace example.com<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u9075\u5faa\u4ece\u6839\u76ee\u5f55\u5230\u57df\u6743\u5a01\u670d\u52a1\u5668\u7684DNS\u5c42\u6b21\u7ed3\u6784\u3002\u5b83\u6709\u52a9\u4e8e\u8bc6\u522b\u59d4\u6d3e\u95ee\u9898\uff0c\u5c3d\u7ba1\u5176\u8f93\u51fa\u6bd4\u5927\u591a\u6570\u57fa\u672c\u68c0\u67e5\u6240\u9700\u7684\u66f4\u8be6\u7ec6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f DNS \u63d0\u4f9b\u5546\u7684\u63a7\u5236\u9762\u677f\uff0c\u8bf7\u786e\u8ba4\u8be5\u57df\u540d\u786e\u5b9e\u5df2\u59d4\u6d3e\u7ed9\u63a7\u5236\u9762\u677f\u4e2d\u663e\u793a\u7684\u540d\u79f0\u670d\u52a1\u5668\u3002\u4e00\u4e2a\u8bb0\u5f55\u5728\u4e00\u4e2a\u63d0\u4f9b\u5546\u7684\u4eea\u8868\u677f\u4e2d\u53ef\u80fd\u662f\u6b63\u786e\u7684\uff0c\u4f46\u516c\u5171\u57df\u540d\u53ef\u80fd\u6307\u5411\u53e6\u4e00\u4e2a\u63d0\u4f9b\u5546\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u679c\u67d0\u4e9b\u7528\u6237\u770b\u5230\u65e7\u7f51\u7ad9\u600e\u4e48\u529e\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\uff0c\u786e\u8ba4\u6743\u5a01\u7684 A \u6216 AAAA \u8bb0\u5f55\u5177\u6709\u9884\u671f\u7684\u503c\u3002\u7136\u540e\u67e5\u8be2\u591a\u4e2a\u9012\u5f52\u89e3\u6790\u5668\uff0c\u5e76\u68c0\u67e5\u5b83\u4eec\u662f\u5426\u8fd4\u56de\u76f8\u540c\u7684\u7b54\u6848\u3002\u5982\u679c\u6743\u5a01\u6570\u636e\u6b63\u786e\u4f46\u67d0\u4e9b\u89e3\u6790\u5668\u8fd4\u56de\u4e86\u8f83\u65e7\u7684\u5730\u5740\uff0c\u5219\u7f13\u5b58\u53ef\u80fd\u662f\u539f\u56e0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u4e0b\u6765\uff0c\u68c0\u67e5\u7528\u6237\u7684\u672c\u5730\u914d\u7f6e\u3002VPN\u3001\u516c\u53f8DNS\u89e3\u6790\u5668\u3001\u5b89\u5168\u4ea7\u54c1\u3001\u6d4f\u89c8\u5668\u7f13\u5b58\u6216\u672c\u5730hosts\u6587\u4ef6\u90fd\u53ef\u80fd\u5f71\u54cd\u8fd4\u56de\u7684\u5730\u5740\u3002\u901a\u8fc7\u4e0e\u5176\u4ed6\u7f51\u7edc\uff08\u5982\u79fb\u52a8\u8fde\u63a5\uff09\u7684\u7ed3\u679c\u8fdb\u884c\u6bd4\u8f83\uff0c\u67e5\u770b\u884c\u4e3a\u662f\u5426\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd8\u8981\u8003\u8651\u65e7\u670d\u52a1\u5668\u548c\u65b0\u670d\u52a1\u5668\u662f\u5426\u90fd\u54cd\u5e94\u3002\u5982\u679c\u65e7\u4e3b\u673a\u4ecd\u7136\u63d0\u4f9b\u7f13\u5b58\u526f\u672c\u6216\u4ee5\u4e0d\u540c\u65b9\u5f0f\u91cd\u5b9a\u5411\uff0c\u8fc1\u79fb\u53ef\u80fd\u4f1a\u663e\u5f97\u4e0d\u4e00\u81f4\u3002DNS \u8bb0\u5f55\u53ef\u80fd\u662f\u6b63\u786e\u7684\uff0c\u4f46\u5bf9\u4e8e\u89e3\u6790\u5668\u5c1a\u672a\u5237\u65b0\u7684\u7528\u6237\u6765\u8bf4\uff0c\u65e7\u670d\u52a1\u5668\u53ef\u80fd\u4ecd\u7136\u53ef\u8bbf\u95ee\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u95ee\u9898\u4ec5\u5f71\u54cd IPv4 \u6216\u4ec5\u5f71\u54cd IPv6\uff0c\u8bf7\u5206\u522b\u6bd4\u8f83 A \u8bb0\u5f55\u548c AAAA \u8bb0\u5f55\u3002\u4e00\u53f0\u8bbe\u5907\u53ef\u80fd\u901a\u8fc7 IPv6 \u8fde\u63a5\uff0c\u800c\u53e6\u4e00\u53f0\u8bbe\u5907\u4f7f\u7528 IPv4\u3002\u4e00\u4e2a\u5730\u5740\u65cf\u53ef\u80fd\u6307\u5411\u65b0\u670d\u52a1\u5668\uff0c\u800c\u53e6\u4e00\u4e2a\u4ecd\u6307\u5411\u65e7\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u679c DNS \u66f4\u6539\u540e\u7f51\u7ad9\u4e0d\u53ef\u7528\u600e\u4e48\u529e\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u68c0\u67e5\u57df\u540d\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u662f\u5426\u6b63\u786e\u4e14\u53ef\u8bbf\u95ee\u3002\u7136\u540e\u9a8c\u8bc1\u8fd9\u4e9b\u670d\u52a1\u5668\u4e0a\u662f\u5426\u5b58\u5728\u76f8\u5173\u8bb0\u5f55\u3002\u5982\u679c\u60a8\u6700\u8fd1\u66f4\u6539\u4e86\u540d\u79f0\u670d\u52a1\u5668\uff0c\u8bf7\u786e\u4fdd\u65b0\u7684 DNS \u63d0\u4f9b\u5546\u5df2\u5305\u542b\u6240\u6709\u5fc5\u9700\u8bb0\u5f55\uff0c\u5305\u62ec\u7f51\u7ad9\u3001\u7535\u5b50\u90ae\u4ef6\u3001\u9a8c\u8bc1\u548c\u670d\u52a1\u8bb0\u5f55\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u786e\u8ba4\u76ee\u6807\u670d\u52a1\u5668\u5df2\u51c6\u5907\u597d\u63a5\u53d7\u8be5\u57df\u540d\u7684\u8fde\u63a5\u3002\u66f4\u65b0 DNS \u4ec5\u66f4\u6539\u5ba2\u6237\u7aef\u7684\u6307\u5411\u4f4d\u7f6e\uff0c\u5b83\u4e0d\u4f1a\u914d\u7f6e Web \u670d\u52a1\u5668\u3001\u5b89\u88c5\u8bc1\u4e66\u3001\u6253\u5f00\u9632\u706b\u5899\u7aef\u53e3\u6216\u590d\u5236\u7f51\u7ad9\u6587\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c DNS \u8fd4\u56de\u4e86\u9884\u671f\u7684 IP \u5730\u5740\uff0c\u4f46\u7f51\u7ad9\u4ecd\u7136\u65e0\u6cd5\u8bbf\u95ee\uff0c\u8bf7\u5206\u522b\u6d4b\u8bd5\u670d\u52a1\u5668\u548c\u5e94\u7528\u7a0b\u5e8f\u3002\u95ee\u9898\u53ef\u80fd\u51fa\u5728 Web \u670d\u52a1\u5668\u3001\u9632\u706b\u5899\u3001TLS \u8bc1\u4e66\u3001\u6258\u7ba1\u914d\u7f6e\u6216\u5e94\u7528\u7a0b\u5e8f\u4e0a\u3002DNS \u67e5\u627e\u4ec5\u786e\u8ba4\u540d\u79f0\u89e3\u6790\uff1b\u5b83\u5e76\u4e0d\u786e\u8ba4\u670d\u52a1\u662f\u5426\u5065\u5eb7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u9700\u68c0\u67e5\u60a8\u7684\u8bbe\u5907\u4e0e\u76ee\u7684\u5730\u4e4b\u95f4\u7684\u5e38\u89c4\u8def\u5f84\uff0c\u8bf7\u53c2\u9605\u6211\u4eec\u7684\u6307\u5357 <a href=\"https:\/\/junglelabs.uk\/zh\/what-is-traceroute\/\">\u4f7f\u7528 traceroute \u8bca\u65ad\u7f51\u7edc\u8fde\u63a5\u95ee\u9898<\/a>. Traceroute \u548c DNS \u67e5\u627e\u6d4b\u8bd5\u8fde\u63a5\u7684\u4e0d\u540c\u90e8\u5206\uff0c\u56e0\u6b64\u5b83\u4eec\u5728\u7f29\u5c0f\u95ee\u9898\u8303\u56f4\u65f6\u4e00\u8d77\u4f7f\u7528\u975e\u5e38\u6709\u7528\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8d1f\u7f13\u5b58\u4e0e\u201c\u8bb0\u5f55\u672a\u627e\u5230\u201d\u7ed3\u679c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u6790\u5668\u53ef\u4ee5\u7f13\u5b58\u8bb0\u5f55\u4e0d\u5b58\u5728\u7684\u4e8b\u5b9e\u3002\u8fd9\u88ab\u79f0\u4e3a\u8d1f\u7f13\u5b58\u3002\u5982\u679c\u89e3\u6790\u5668\u5728\u8bb0\u5f55\u521b\u5efa\u4e4b\u524d\u67e5\u8be2\u4e86\u540d\u79f0\uff0c\u5373\u4f7f\u5728\u8bb0\u5f55\u5df2\u6dfb\u52a0\u540e\uff0c\u5b83\u4e5f\u53ef\u80fd\u6682\u65f6\u7ee7\u7eed\u8fd4\u56de\u201c\u672a\u627e\u5230\u201d\u7684\u54cd\u5e94\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8d1f\u7f13\u5b58\u4e5f\u6709\u4e00\u4e2a\u57fa\u4e8e\u533a\u57df SOA \u8bb0\u5f55\u548c\u89e3\u6790\u5668\u89c4\u5219\u7684 TTL\u3002\u5177\u4f53\u884c\u4e3a\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002\u5982\u679c\u65b0\u521b\u5efa\u7684\u5b50\u57df\u540d\u6ca1\u6709\u7acb\u5373\u89e3\u6790\uff0c\u8bf7\u9996\u5148\u68c0\u67e5\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u3002\u5982\u679c\u5b83\u8fd4\u56de\u4e86\u65b0\u8bb0\u5f55\uff0c\u8bf7\u7b49\u5f85\u8d1f\u7f13\u5b58\u8fc7\u671f\u5e76\u6bd4\u8f83\u5176\u4ed6\u89e3\u6790\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201c\u672a\u627e\u5230\u8bb0\u5f55\u201d\u7684\u54cd\u5e94\u4e5f\u53ef\u80fd\u8868\u793a\u8be5\u8bb0\u5f55\u88ab\u6dfb\u52a0\u5230\u4e86\u9519\u8bef\u7684\u533a\u57df\u3001\u4e3b\u673a\u540d\u8f93\u5165\u6709\u8bef\uff0c\u6216\u8005\u8be5\u57df\u540d\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u3002\u5728\u5047\u8bbe\u95ee\u9898\u4ec5\u7531\u4f20\u64ad\u5ef6\u8fdf\u5f15\u8d77\u4e4b\u524d\uff0c\u8bf7\u786e\u8ba4\u5b8c\u6574\u7684\u4e3b\u673a\u540d\u3001\u8bb0\u5f55\u7c7b\u578b\u548c DNS \u63d0\u4f9b\u5546\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u89c4\u5212DNS\u8fc1\u79fb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u66f4\u6539\u751f\u4ea7\u670d\u52a1\u7684\u8bb0\u5f55\u4e4b\u524d\uff0c\u5217\u51fa\u8be5\u670d\u52a1\u6240\u4f9d\u8d56\u7684\u6240\u6709\u4e3b\u673a\u540d\u548c\u8bb0\u5f55\u3002\u7f51\u7ad9\u53ef\u80fd\u4f7f\u7528 A \u8bb0\u5f55\u548c AAAA \u8bb0\u5f55\uff0c\u800c\u7535\u5b50\u90ae\u4ef6\u5219\u4f9d\u8d56\u4e8e MX\u3001SPF\u3001DKIM \u548c DMARC \u8bb0\u5f55\u3002\u5e94\u7528\u7a0b\u5e8f\u8fd8\u53ef\u80fd\u4f9d\u8d56\u9a8c\u8bc1\u6216\u670d\u52a1\u53d1\u73b0\u8bb0\u5f55\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u53d8\u66f4\u662f\u8ba1\u5212\u5185\u7684\uff0c\u8bf7\u63d0\u524d\u964d\u4f4e\u76f8\u5173 TTL \u503c\uff0c\u5e76\u5728\u5207\u6362\u76ee\u6807\u524d\u7b49\u5f85\u81f3\u5c11\u4e00\u4e2a\u539f TTL \u65f6\u957f\u3002\u5728\u66f4\u65b0 DNS \u4e4b\u524d\uff0c\u51c6\u5907\u597d\u65b0\u670d\u52a1\u5668\u6216\u63d0\u4f9b\u5546\u3002\u5c3d\u53ef\u80fd\u76f4\u63a5\u8fdb\u884c\u6d4b\u8bd5\uff0c\u5e76\u786e\u4fdd\u8bc1\u4e66\u3001\u9632\u706b\u5899\u89c4\u5219\u3001\u5e94\u7528\u7a0b\u5e8f\u8bbe\u7f6e\u548c\u90ae\u4ef6\u670d\u52a1\u5747\u5df2\u5c31\u7eea\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u6539\u540e\uff0c\u8bf7\u68c0\u67e5\u6743\u5a01\u7b54\u6848\u4ee5\u53ca\u591a\u4e2a\u9012\u5f52\u89e3\u6790\u5668\u3002\u76d1\u63a7\u7f51\u7ad9\u53ef\u7528\u6027\u3001\u7535\u5b50\u90ae\u4ef6\u6295\u9012\u548c\u5e94\u7528\u9519\u8bef\u3002\u5728\u8fc7\u6e21\u671f\u95f4\u5c3d\u53ef\u80fd\u4fdd\u6301\u65e7\u670d\u52a1\u53ef\u7528\uff0c\u56e0\u4e3a\u90e8\u5206\u7528\u6237\u53ef\u80fd\u4ecd\u4f1a\u8bbf\u95ee\u8be5\u670d\u52a1\uff0c\u76f4\u5230\u7f13\u5b58\u7684\u7b54\u6848\u8fc7\u671f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65e6\u65b0\u914d\u7f6e\u7a33\u5b9a\uff0c\u6062\u590d\u5408\u9002\u7684TTL\u503c\u3002\u5bf9\u4e8e\u5f88\u5c11\u53d1\u751f\u53d8\u5316\u7684\u670d\u52a1\uff0c\u957f\u671f\u4fdd\u6301\u6781\u4f4e\u7684TTL\u4f1a\u589e\u52a0DNS\u67e5\u8be2\u91cf\uff0c\u4f46\u5e26\u6765\u7684\u597d\u5904\u6709\u9650\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u7684DNS\u4f20\u64ad\u8bef\u89e3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u4e2a\u5e38\u89c1\u7684\u8bef\u89e3\u662f\uff0c\u6bcf\u6b21 DNS \u66f4\u6539\u90fd\u9700\u8981\u6070\u597d 24 \u6216 48 \u5c0f\u65f6\u3002\u5b9e\u9645\u4e0a\u5e76\u4e0d\u5b58\u5728\u56fa\u5b9a\u7684\u7edf\u4e00\u65f6\u957f\u3002\u5b9e\u9645\u5ef6\u8fdf\u53d6\u51b3\u4e8e\u4e4b\u524d\u7684 TTL \u503c\u3001\u89e3\u6790\u5668\u7f13\u5b58\u3001\u59d4\u6d3e\u66f4\u6539\u4ee5\u53ca\u6743\u5a01\u914d\u7f6e\u7684\u6b63\u786e\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u4e00\u4e2a\u8bef\u89e3\u662f\uff0c\u6e05\u9664\u6d4f\u89c8\u5668\u7f13\u5b58\u4f1a\u66f4\u65b0\u6240\u6709\u5730\u65b9\u7684 DNS\u3002\u5b83\u53ef\u80fd\u6e05\u9664\u8be5\u8bbe\u5907\u4e0a\u5b58\u50a8\u7684\u4fe1\u606f\uff0c\u4f46\u65e0\u6cd5\u6e05\u9664\u8fdc\u7a0b\u9012\u5f52\u89e3\u6790\u5668\u7684\u7f13\u5b58\u3002\u540c\u6837\uff0c\u91cd\u542f\u8def\u7531\u5668\u53ef\u80fd\u4f1a\u6e05\u9664\u5176\u672c\u5730\u7f13\u5b58\uff0c\u4f46\u4e0d\u4f1a\u66f4\u6539\u6743\u5a01\u8bb0\u5f55\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e09\u79cd\u8bef\u89e3\u662f\uff0cDNS \u68c0\u67e5\u5668\u663e\u793a\u4e0d\u540c\u7684\u7b54\u6848\u5c31\u8bc1\u660e\u57df\u540d\u5df2\u635f\u574f\u3002\u5728\u8ba1\u5212\u8fc1\u79fb\u671f\u95f4\uff0c\u5c24\u5176\u662f\u5f53\u89e3\u6790\u5668\u5728\u4e0d\u540c\u65f6\u95f4\u7f13\u5b58\u4e86\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u4e0d\u540c\u7684\u7b54\u6848\u3002\u91cd\u8981\u7684\u95ee\u9898\u662f\u6743\u5a01\u8bb0\u5f55\u662f\u5426\u6b63\u786e\uff0c\u4ee5\u53ca\u5269\u4f59\u5dee\u5f02\u662f\u5426\u4e0e\u4e4b\u524d\u7684 TTL \u4e00\u81f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\uff0cDNS \u4f20\u64ad\u4e0d\u4f1a\u914d\u7f6e\u76ee\u6807\u670d\u52a1\u3002\u5373\u4f7f IP \u5730\u5740\u6b63\u786e\uff0c\u5982\u679c\u670d\u52a1\u5668\u3001\u9632\u706b\u5899\u3001TLS \u8bc1\u4e66\u6216\u5e94\u7528\u7a0b\u5e8f\u672a\u5c31\u7eea\uff0c\u7f51\u7ad9\u4ecd\u53ef\u80fd\u65e0\u6cd5\u8bbf\u95ee\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5173\u4e8eDNS\u4f20\u64ad\u7684\u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">DNS \u4f20\u64ad\u9700\u8981\u591a\u957f\u65f6\u95f4\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ca1\u6709\u5355\u4e00\u7684\u4fdd\u8bc1\u6301\u7eed\u65f6\u95f4\u3002\u67d0\u4e9b\u66f4\u6539\u4f1a\u8fc5\u901f\u663e\u73b0\uff0c\u800c\u5176\u4ed6\u66f4\u6539\u5219\u53ef\u80fd\u4e0d\u4e00\u81f4\uff0c\u76f4\u5230\u7f13\u5b58\u8bb0\u5f55\u8fc7\u671f\u3002\u4e4b\u524d\u7684TTL\u3001\u89e3\u6790\u5668\u884c\u4e3a\u4ee5\u53ca\u540d\u79f0\u670d\u52a1\u5668\u662f\u5426\u66f4\u6539\u90fd\u4f1a\u5f71\u54cd\u65f6\u95f4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u964d\u4f4eTTL\u662f\u5426\u4f1a\u4f7f\u66f4\u6539\u7acb\u5373\u751f\u6548\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u3002\u964d\u4f4eTTL\u4f1a\u5f71\u54cd\u89e3\u6790\u5668\u83b7\u53d6\u65b0TTL\u4e4b\u540e\u7684\u672a\u6765\u7f13\u5b58\u884c\u4e3a\u3002\u5df2\u7ecf\u7f13\u5b58\u4e86\u65e7\u8bb0\u5f55\u7684\u89e3\u6790\u5668\u53ef\u80fd\u4f1a\u7ee7\u7eed\u4f7f\u7528\u5b83\uff0c\u76f4\u5230\u5176\u4e4b\u524d\u7684TTL\u8fc7\u671f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48DNS\u68c0\u67e5\u5668\u4f1a\u663e\u793a\u4e0d\u540c\u7684\u7ed3\u679c\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u4eec\u53ef\u80fd\u4f1a\u4ece\u4e0d\u540c\u4f4d\u7f6e\u67e5\u8be2\u4e0d\u540c\u7684\u9012\u5f52\u89e3\u6790\u5668\u3002\u8fd9\u4e9b\u89e3\u6790\u5668\u53ef\u80fd\u5177\u6709\u4e0d\u540c\u7684\u7f13\u5b58\u7b54\u6848\u3001\u5728\u4e0d\u540c\u65f6\u95f4\u5237\u65b0\uff0c\u6216\u56e0\u5730\u7406DNS\u7b56\u7565\u800c\u63a5\u6536\u4e0d\u540c\u7684\u7b54\u6848\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6211\u5e94\u8be5\u6e05\u9664\u8ba1\u7b97\u673a\u7684DNS\u7f13\u5b58\u5417\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u60a8\u7684\u8bbe\u5907\u7f13\u5b58\u4e86\u65e7\u7b54\u6848\u65f6\uff0c\u5b83\u4f1a\u6709\u6240\u5e2e\u52a9\u3002\u5b83\u4e0d\u4f1a\u6e05\u9664\u7531\u60a8\u7684\u4e92\u8054\u7f51\u670d\u52a1\u63d0\u4f9b\u5546\u3001\u516c\u53f8\u89e3\u6790\u5668\u6216\u516c\u5171DNS\u670d\u52a1\u6301\u6709\u7684\u7f13\u5b58\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u6211\u7684\u7f51\u7ad9\u53ef\u4ee5\u89e3\u6790\u4f46\u65e0\u6cd5\u52a0\u8f7d\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DNS \u53ef\u80fd\u8fd4\u56de\u4e86\u6b63\u786e\u7684\u5730\u5740\uff0c\u4f46\u76ee\u6807\u670d\u52a1\u5668\u6216\u5e94\u7528\u7a0b\u5e8f\u5b58\u5728\u95ee\u9898\u3002\u8bf7\u5206\u522b\u68c0\u67e5 Web \u670d\u52a1\u5668\u3001\u9632\u706b\u5899\u3001TLS \u8bc1\u4e66\u548c\u6258\u7ba1\u914d\u7f6e\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u540d\u79f0\u670d\u52a1\u5668\u66f4\u6539\u662f\u5426\u53ef\u80fd\u6bd4\u8bb0\u5f55\u66f4\u6539\u82b1\u8d39\u66f4\u957f\u65f6\u95f4\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u4eec\u53ef\u80fd\u6d89\u53ca\u6ce8\u518c\u5546\u548c\u7236DNS\u533a\u57df\u4e2d\u7684\u989d\u5916\u59d4\u6d3e\u4fe1\u606f\u3002\u65b0\u63d0\u4f9b\u5546\u8fd8\u5fc5\u987b\u63d0\u4f9b\u5b8c\u6574\u4e14\u6b63\u786e\u7684\u533a\u57df\u3002\u9a8c\u8bc1\u65b0\u6743\u5a01\u670d\u52a1\u5668\u4e0a\u7684\u59d4\u6d3e\u548c\u8bb0\u5f55\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DNS \u66f4\u6539\u53ef\u80fd\u5728\u4e0d\u540c\u65f6\u95f4\u751f\u6548\uff0c\u56e0\u4e3a\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u548c\u9012\u5f52\u89e3\u6790\u5668\u5177\u6709\u4e0d\u540c\u7684\u89d2\u8272\uff0c\u4e14\u89e3\u6790\u5668\u4f1a\u6839\u636e TTL\uff08\u751f\u5b58\u65f6\u95f4\uff09\u503c\u7f13\u5b58\u7b54\u6848\u3002\u4e00\u4e2a\u7528\u6237\u53ef\u80fd\u4f1a\u770b\u5230\u65e7\u7684\u5730\u5740\uff0c\u800c\u53e6\u4e00\u4e2a\u7528\u6237\u5df2\u7ecf\u63a5\u6536\u5230\u65b0\u7684\u5730\u5740\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u8fdb\u884c\u8c03\u67e5\uff0c\u9996\u5148\u68c0\u67e5\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\uff0c\u7136\u540e\u6bd4\u8f83\u591a\u4e2a\u9012\u5f52\u89e3\u6790\u5668\u7684\u54cd\u5e94\u3002\u786e\u8ba4\u8bb0\u5f55\u7c7b\u578b\u3001\u4e3b\u673a\u540d\u3001TTL \u548c\u540d\u79f0\u670d\u52a1\u5668\u59d4\u6d3e\u3002\u5982\u679c DNS \u8fd4\u56de\u9884\u671f\u7684\u5730\u5740\u4f46\u670d\u52a1\u4ecd\u4e0d\u53ef\u7528\uff0c\u8bf7\u5206\u522b\u68c0\u67e5\u76ee\u6807\u670d\u52a1\u5668\u548c\u5e94\u7528\u7a0b\u5e8f\u4ee5\u6392\u67e5\u95ee\u9898\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7406\u89e3\u7f13\u5b58\u673a\u5236\u6709\u52a9\u4e8e\u66f4\u8f7b\u677e\u5730\u89c4\u5212\u548c\u6392\u67e5 DNS \u66f4\u6539\u3002\u5982\u9700\u66f4\u591a\u7f51\u7edc\u57fa\u7840\u77e5\u8bc6\uff0c\u8bf7\u7ee7\u7eed\u9605\u8bfb\u6211\u4eec\u7684\u6307\u5357 <a href=\"https:\/\/junglelabs.uk\/zh\/what-is-an-ip-address-a-complete-beginners-guide\/\">IP\u5730\u5740<\/a>, <a href=\"https:\/\/junglelabs.uk\/zh\/what-is-a-default-gateway\/\">\u9ed8\u8ba4\u7f51\u5173<\/a>\uff0c\u548c <a href=\"https:\/\/junglelabs.uk\/zh\/what-is-traceroute\/\">traceroute<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>You update a domain\u2019s DNS records, save the change, and expect the new website or mail service to work immediately. But a colleague still sees the old website, an online checker shows a different address, or email delivery behaves inconsistently. This delay is commonly called DNS propagation. The phrase can make it sound as though [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2344,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"What Is DNS Propagation? Why DNS Changes Take Time","_seopress_titles_desc":"Learn why DNS changes take time to appear, how caching and TTL affect updates, and how to check whether a domain is returning the expected records.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article"],"_links":{"self":[{"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/posts\/2342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/comments?post=2342"}],"version-history":[{"count":1,"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/posts\/2342\/revisions"}],"predecessor-version":[{"id":2343,"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/posts\/2342\/revisions\/2343"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/media\/2344"}],"wp:attachment":[{"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/media?parent=2342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/categories?post=2342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/junglelabs.uk\/zh\/wp-json\/wp\/v2\/tags?post=2342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}