{"id":25289,"date":"2025-04-19T12:11:46","date_gmt":"2025-04-19T04:11:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/25289.html"},"modified":"2025-04-19T12:11:46","modified_gmt":"2025-04-19T04:11:46","slug":"dns%e8%a7%a3%e6%9e%90%e5%85%a8%e6%b5%81%e7%a8%8b%e8%af%a6%e8%a7%a3-%e4%bb%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e5%88%b0%e6%9d%83%e5%a8%81%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e5%ae%8c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/25289.html","title":{"rendered":"DNS\u89e3\u6790\u5168\u6d41\u7a0b\u8be6\u89e3 \u2014\u2014 \u4ece\u5ba2\u6237\u7aef\u5230\u6743\u5a01\u670d\u52a1\u5668\u7684\u5b8c\u6574\u8def\u5f84"},"content":{"rendered":"<\/p>\n<hr \/>\n<h3>\u4e00\u3001DNS\u89e3\u6790\u57fa\u7840\u4e0e\u67b6\u6784\u6982\u89c8<\/h3>\n<h4>1.1 DNS\u4f53\u7cfb\u7ed3\u6784<\/h4>\n<p>DNS \u91c7\u7528\u5206\u5e03\u5f0f\u67b6\u6784&#xff0c;\u4e3b\u8981\u7531\u4ee5\u4e0b\u51e0\u4e2a\u5c42\u6b21\u7ec4\u6210&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u6839\u670d\u52a1\u5668&#xff08;Root Servers&#xff09; \u5168\u7403\u5171\u6709 13 \u4e2a\u903b\u8f91\u6839\u670d\u52a1\u5668&#xff08;\u5b9e\u9645\u6709\u591a\u4e2a\u5b9e\u4f8b&#xff09;&#xff0c;\u8d1f\u8d23\u7ba1\u7406\u9876\u7ea7\u57df&#xff08;TLD&#xff09;\u7684\u67e5\u8be2\u5165\u53e3\u3002<\/p>\n<\/li>\n<li>\n<p>\u9876\u7ea7\u57df&#xff08;TLD&#xff09;\u670d\u52a1\u5668 \u8d1f\u8d23\u5404\u4e2a\u9876\u7ea7\u57df&#xff08;\u5982 .com\u3001.net\u3001.org\u3001.cn \u7b49&#xff09;\u7684\u7ba1\u7406&#xff0c;\u6bcf\u4e2a TLD \u670d\u52a1\u5668\u8fd4\u56de\u8be5\u57df\u540d\u7684\u6743\u5a01\u670d\u52a1\u5668\u4fe1\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668&#xff08;Authoritative Name Servers&#xff09; \u5b58\u50a8\u5177\u4f53\u57df\u540d\u7684 DNS \u8bb0\u5f55&#xff08;A\u3001AAAA\u3001MX\u3001NS \u7b49&#xff09;&#xff0c;\u8fd4\u56de\u6700\u7ec8\u7684 IP \u5730\u5740\u6216\u5176\u4ed6\u8bb0\u5f55\u4fe1\u606f\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>1.2 DNS\u8bb0\u5f55\u7c7b\u578b\u7b80\u4ecb<\/h4>\n<ul>\n<li>A\u8bb0\u5f55&#xff1a;IPv4 \u5730\u5740\u6620\u5c04\u3002<\/li>\n<li>AAAA\u8bb0\u5f55&#xff1a;IPv6 \u5730\u5740\u6620\u5c04\u3002<\/li>\n<li>CNAME\u8bb0\u5f55&#xff1a;\u522b\u540d\u8bb0\u5f55&#xff0c;\u5c06\u4e00\u4e2a\u57df\u540d\u6620\u5c04\u4e3a\u53e6\u4e00\u4e2a\u57df\u540d\u3002<\/li>\n<li>MX\u8bb0\u5f55&#xff1a;\u90ae\u4ef6\u4ea4\u6362\u8bb0\u5f55&#xff0c;\u7528\u4e8e\u90ae\u4ef6\u670d\u52a1\u5668\u5b9a\u4f4d\u3002<\/li>\n<li>NS\u8bb0\u5f55&#xff1a;\u6307\u5b9a\u57df\u540d\u670d\u52a1\u5668\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e8c\u3001DNS\u89e3\u6790\u6d41\u7a0b\u8be6\u89e3<\/h3>\n<p>\u5f53\u7528\u6237\u5728\u6d4f\u89c8\u5668\u4e2d\u8f93\u5165\u4e00\u4e2a URL \u65f6&#xff0c;DNS \u89e3\u6790\u5927\u81f4\u4f1a\u7ecf\u5386\u4ee5\u4e0b\u51e0\u4e2a\u9636\u6bb5&#xff1a;<\/p>\n<h4>2.1 \u5ba2\u6237\u7aef\u67e5\u8be2\u524d\u7684\u51c6\u5907\u5de5\u4f5c<\/h4>\n<li>\n<p>\u6d4f\u89c8\u5668\u7f13\u5b58 \u6d4f\u89c8\u5668\u5185\u90e8\u4f1a\u7f13\u5b58\u6700\u8fd1\u89e3\u6790\u8fc7\u7684\u57df\u540d\u4e0e IP \u5730\u5740\u6620\u5c04&#xff0c;\u76f4\u63a5\u8fd4\u56de\u7f13\u5b58\u7ed3\u679c\u53ef\u5927\u5e45\u51cf\u5c11\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n<li>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58 \u64cd\u4f5c\u7cfb\u7edf\u4e5f\u4f1a\u7f13\u5b58 DNS \u8bb0\u5f55&#xff0c;\u5982\u679c\u6d4f\u89c8\u5668\u7f13\u5b58\u5931\u6548&#xff0c;\u4f1a\u67e5\u8be2 OS \u5185\u90e8\u7f13\u5b58\u3002<\/p>\n<\/li>\n<li>\n<p>Hosts\u6587\u4ef6\u68c0\u67e5 \u7cfb\u7edf\u4f1a\u5148\u68c0\u67e5\u672c\u5730 hosts \u6587\u4ef6&#xff08;\u5982 Windows \u4e0b\u7684 C:\\\\Windows\\\\System32\\\\drivers\\\\etc\\\\hosts\u3001Linux \u4e0b\u7684 \/etc\/hosts&#xff09;&#xff0c;\u5982\u679c\u5339\u914d\u5219\u76f4\u63a5\u8fd4\u56de\u5bf9\u5e94 IP\u3002<\/p>\n<\/li>\n<h4>2.2 \u672c\u5730 DNS \u89e3\u6790\u5668\u7684\u9012\u5f52\u67e5\u8be2<\/h4>\n<p>\u5982\u679c\u672c\u5730\u6ca1\u6709\u5339\u914d\u8bb0\u5f55&#xff0c;\u5ba2\u6237\u7aef\u5c06\u8bf7\u6c42\u53d1\u9001\u7ed9\u914d\u7f6e\u7684\u672c\u5730 DNS \u89e3\u6790\u5668&#xff08;\u901a\u5e38\u7531 ISP \u6216\u5c40\u57df\u7f51 DNS \u670d\u52a1\u5668\u63d0\u4f9b&#xff09;\u3002\u8fd9\u65f6\u901a\u5e38\u91c7\u7528\u9012\u5f52\u67e5\u8be2\u65b9\u5f0f&#xff0c;\u5373\u89e3\u6790\u5668\u5168\u6743\u8d1f\u8d23\u5b8c\u6210\u6574\u4e2a\u89e3\u6790\u8fc7\u7a0b&#xff0c;\u5e76\u8fd4\u56de\u6700\u7ec8\u7ed3\u679c\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n<h4>2.3 \u9012\u5f52\u67e5\u8be2\u7684\u8be6\u7ec6\u6b65\u9aa4<\/h4>\n<li>\n<p>\u5411\u6839\u670d\u52a1\u5668\u67e5\u8be2<\/p>\n<ul>\n<li>\u672c\u5730\u89e3\u6790\u5668\u5411\u6839\u670d\u52a1\u5668\u53d1\u9001\u67e5\u8be2\u8bf7\u6c42&#xff08;\u4f8b\u5982\u67e5\u8be2 www.example.com&#xff09;\u3002<\/li>\n<li>\u6839\u670d\u52a1\u5668\u4e0d\u4f1a\u76f4\u63a5\u8fd4\u56de IP \u5730\u5740&#xff0c;\u800c\u662f\u8fd4\u56de\u5bf9\u5e94 TLD \u670d\u52a1\u5668\u7684\u5730\u5740&#xff08;\u5982 .com \u670d\u52a1\u5668&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5411\u9876\u7ea7\u57df&#xff08;TLD&#xff09;\u670d\u52a1\u5668\u67e5\u8be2<\/p>\n<ul>\n<li>\u672c\u5730\u89e3\u6790\u5668\u6839\u636e\u6839\u670d\u52a1\u5668\u7684\u54cd\u5e94&#xff0c;\u5411\u5bf9\u5e94\u7684 TLD \u670d\u52a1\u5668\u53d1\u9001\u67e5\u8be2\u8bf7\u6c42\u3002<\/li>\n<li>TLD \u670d\u52a1\u5668\u8fd4\u56de\u8be5\u57df\u540d\u7684\u6743\u5a01 DNS \u670d\u52a1\u5668\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5411\u6743\u5a01\u670d\u52a1\u5668\u67e5\u8be2<\/p>\n<ul>\n<li>\u6700\u540e&#xff0c;\u672c\u5730\u89e3\u6790\u5668\u5411\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u53d1\u9001\u67e5\u8be2\u8bf7\u6c42&#xff0c;\u83b7\u5f97\u57df\u540d\u7684\u6700\u7ec8\u89e3\u6790\u8bb0\u5f55&#xff08;A\u3001AAAA \u7b49\u8bb0\u5f55&#xff09;\u3002<\/li>\n<li>\u6743\u5a01\u670d\u52a1\u5668\u8fd4\u56de\u5bf9\u5e94 IP \u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<h4>2.4 \u8fd4\u56de\u7ed3\u679c\u4e0e\u591a\u7ea7\u7f13\u5b58<\/h4>\n<ul>\n<li>\u89e3\u6790\u5668\u7f13\u5b58&#xff1a;\u5728\u9012\u5f52\u67e5\u8be2\u8fc7\u7a0b\u4e2d&#xff0c;\u6bcf\u4e2a DNS \u670d\u52a1\u5668\u90fd\u4f1a\u7f13\u5b58\u67e5\u8be2\u7ed3\u679c&#xff0c;\u7f13\u5b58\u6709\u6548\u671f\u7531 TTL \u51b3\u5b9a&#xff0c;\u4ee5\u4fbf\u540e\u7eed\u8bf7\u6c42\u76f4\u63a5\u8fd4\u56de\u7ed3\u679c\u3002<\/li>\n<li>\u7ed3\u679c\u8fd4\u56de&#xff1a;\u6700\u7ec8&#xff0c;\u672c\u5730\u89e3\u6790\u5668\u5c06\u89e3\u6790\u5230\u7684 IP \u5730\u5740\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u6d4f\u89c8\u5668\u57fa\u4e8e\u8be5 IP \u5efa\u7acb\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e09\u3001\u534f\u8bae\u4e0e\u67e5\u8be2\u7ec6\u8282<\/h3>\n<h4>3.1 UDP \u4e0e TCP<\/h4>\n<ul>\n<li>UDP\u67e5\u8be2&#xff1a;\u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;DNS \u67e5\u8be2\u901a\u8fc7 UDP \u534f\u8bae\u53d1\u9001&#xff0c;\u56e0\u5176\u5f00\u9500\u5c0f\u3001\u901f\u5ea6\u5feb\u3002<\/li>\n<li>TCP\u67e5\u8be2&#xff1a;\u5f53\u67e5\u8be2\u54cd\u5e94\u6570\u636e\u8d85\u8fc7 512 \u5b57\u8282&#xff08;\u6216\u542f\u7528\u4e86 EDNS0 \u540e\u7684\u66f4\u5927\u9650\u5236&#xff09;&#xff0c;\u6216\u8005\u8fdb\u884c\u533a\u57df\u4f20\u8f93&#xff08;AXFR&#xff09;\u65f6&#xff0c;\u4f1a\u4f7f\u7528 TCP\u3002<\/li>\n<\/ul>\n<h4>3.2 \u9012\u5f52\u4e0e\u8fed\u4ee3\u67e5\u8be2\u7684\u6bd4\u8f83<\/h4>\n<ul>\n<li>\u9012\u5f52\u67e5\u8be2&#xff1a;\u5ba2\u6237\u7aef\u53ea\u53d1\u8d77\u4e00\u6b21\u8bf7\u6c42&#xff0c;DNS \u89e3\u6790\u5668\u8d1f\u8d23\u6240\u6709\u67e5\u8be2\u6b65\u9aa4&#xff0c;\u7b80\u5316\u5ba2\u6237\u7aef\u903b\u8f91\u3002<\/li>\n<li>\u8fed\u4ee3\u67e5\u8be2&#xff1a;\u5ba2\u6237\u7aef\u9010\u7ea7\u5411\u5404 DNS \u670d\u52a1\u5668\u67e5\u8be2&#xff0c;\u6bcf\u4e2a\u670d\u52a1\u5668\u53ea\u8fd4\u56de\u90e8\u5206\u4fe1\u606f\u3002\u867d\u7136\u7406\u8bba\u4e0a\u66f4\u9ad8\u6548&#xff0c;\u4f46\u590d\u6742\u5ea6\u8f83\u9ad8&#xff0c;\u5b9e\u9645\u4e2d\u901a\u5e38\u7531\u89e3\u6790\u5668\u5b9e\u73b0\u9012\u5f52\u67e5\u8be2\u3002<\/li>\n<\/ul>\n<h4>3.3 EDNS&#xff08;\u6269\u5c55 DNS&#xff09;<\/h4>\n<p>EDNS&#xff08;Extension Mechanisms for DNS&#xff09;\u5141\u8bb8 DNS \u534f\u8bae\u6269\u5c55\u652f\u6301\u66f4\u5927\u6d88\u606f\u5c3a\u5bf8\u3001\u989d\u5916\u9009\u9879\u7b49\u529f\u80fd&#xff0c;\u7f13\u89e3\u4f20\u7edf DNS 512 \u5b57\u8282\u9650\u5236\u95ee\u9898\u3002<\/p>\n<hr \/>\n<h3>\u56db\u3001DNS\u7f13\u5b58\u4e0eTTL\u7b56\u7565<\/h3>\n<h4>4.1 \u7f13\u5b58\u5c42\u7ea7<\/h4>\n<ul>\n<li>\u5ba2\u6237\u7aef\u7f13\u5b58&#xff1a;\u6d4f\u89c8\u5668\u548c\u64cd\u4f5c\u7cfb\u7edf\u90fd\u7ef4\u62a4\u7740 DNS \u7f13\u5b58&#xff0c;\u51cf\u5c11\u7f51\u7edc\u8bf7\u6c42\u3002<\/li>\n<li>\u89e3\u6790\u5668\u7f13\u5b58&#xff1a;ISP \u6216\u672c\u5730 DNS \u89e3\u6790\u5668\u5bf9\u67e5\u8be2\u7ed3\u679c\u8fdb\u884c\u7f13\u5b58&#xff0c;\u5f71\u54cd\u5168\u5c40\u89e3\u6790\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h4>4.2 TTL&#xff08;\u751f\u5b58\u65f6\u95f4&#xff09;<\/h4>\n<p>\u6bcf\u4e2a DNS \u8bb0\u5f55\u90fd\u6709\u4e00\u4e2a TTL \u503c&#xff0c;\u6307\u793a\u8bb0\u5f55\u5728\u7f13\u5b58\u4e2d\u4fdd\u6301\u6709\u6548\u7684\u65f6\u95f4\u3002TTL \u7b56\u7565\u7684\u5e73\u8861\u70b9&#xff1a;<\/p>\n<ul>\n<li>TTL\u8fc7\u957f&#xff1a;\u51cf\u5c11\u67e5\u8be2\u6b21\u6570&#xff0c;\u4f46\u66f4\u65b0\u7f13\u6162&#xff0c;\u53ef\u80fd\u5bfc\u81f4\u8fc7\u671f\u4fe1\u606f\u3002<\/li>\n<li>TTL\u8fc7\u77ed&#xff1a;\u5feb\u901f\u53cd\u6620\u66f4\u65b0&#xff0c;\u4f46\u589e\u52a0\u67e5\u8be2\u8d1f\u8f7d\u548c\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e94\u3001DNS\u5b89\u5168\u4e0e\u6269\u5c55<\/h3>\n<h4>5.1 DNSSEC&#xff08;DNS\u5b89\u5168\u6269\u5c55&#xff09;<\/h4>\n<p>DNSSEC \u901a\u8fc7\u6570\u5b57\u7b7e\u540d\u673a\u5236\u4fdd\u8bc1 DNS \u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u6765\u6e90\u53ef\u4fe1\u5ea6&#xff0c;\u9632\u6b62 DNS \u52ab\u6301\u548c\u7f13\u5b58\u6295\u6bd2\u653b\u51fb\u3002DNSSEC \u7684\u5de5\u4f5c\u539f\u7406&#xff1a;<\/p>\n<ul>\n<li>\u5728\u6743\u5a01\u670d\u52a1\u5668\u4e0a\u751f\u6210\u5e76\u7b7e\u540d DNS \u8bb0\u5f55\u3002<\/li>\n<li>\u89e3\u6790\u5668\u9a8c\u8bc1\u6570\u5b57\u7b7e\u540d&#xff0c;\u786e\u4fdd\u8fd4\u56de\u7684\u6570\u636e\u672a\u88ab\u7be1\u6539\u3002<\/li>\n<\/ul>\n<h4>5.2 DNS over HTTPS&#xff08;DoH&#xff09;\u4e0e DNS over TLS&#xff08;DoT&#xff09;<\/h4>\n<p>\u4e3a\u4e86\u63d0\u5347\u9690\u79c1\u6027\u4e0e\u5b89\u5168\u6027&#xff0c;DoH \u548c DoT \u901a\u8fc7\u52a0\u5bc6 DNS \u67e5\u8be2&#xff0c;\u9632\u6b62\u4e2d\u95f4\u4eba\u653b\u51fb\u548c\u6570\u636e\u6cc4\u9732&#xff1a;<\/p>\n<ul>\n<li>DoH&#xff1a;\u5c06 DNS \u67e5\u8be2\u5d4c\u5165 HTTPS \u6d41\u91cf\u4e2d\u3002<\/li>\n<li>DoT&#xff1a;\u901a\u8fc7 TLS \u534f\u8bae\u52a0\u5bc6 DNS \u901a\u4fe1\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>\u516d\u3001\u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e0e\u793a\u4f8b<\/h3>\n<h4>6.1 \u5b9e\u9645\u89e3\u6790\u6d41\u7a0b\u793a\u4f8b<\/h4>\n<p>\u5047\u8bbe\u7528\u6237\u8bbf\u95ee www.example.com&#xff0c;\u89e3\u6790\u8fc7\u7a0b\u5982\u4e0b&#xff1a;<\/p>\n<li>\u672c\u5730\u68c0\u67e5&#xff1a;\u6d4f\u89c8\u5668\u67e5\u8be2\u5185\u90e8\u7f13\u5b58&#xff0c;\u53d1\u73b0\u65e0\u5339\u914d\u8bb0\u5f55 \u2192 \u68c0\u67e5 hosts \u6587\u4ef6&#xff0c;\u65e0\u5339\u914d\u8bb0\u5f55\u3002<\/li>\n<li>\u53d1\u9001\u9012\u5f52\u8bf7\u6c42&#xff1a;\u5ba2\u6237\u7aef\u5411\u672c\u5730 DNS \u89e3\u6790\u5668\u53d1\u9001 www.example.com \u7684\u9012\u5f52\u67e5\u8be2\u8bf7\u6c42\u3002<\/li>\n<li>\u6839\u670d\u52a1\u5668\u54cd\u5e94&#xff1a;\u89e3\u6790\u5668\u5411\u6839\u670d\u52a1\u5668\u67e5\u8be2&#xff0c;\u6839\u670d\u52a1\u5668\u8fd4\u56de .com TLD \u670d\u52a1\u5668\u5730\u5740\u3002<\/li>\n<li>TLD\u670d\u52a1\u5668\u54cd\u5e94&#xff1a;\u89e3\u6790\u5668\u5411 .com \u670d\u52a1\u5668\u67e5\u8be2&#xff0c;\u8fd4\u56de example.com \u6743\u5a01\u670d\u52a1\u5668\u5730\u5740\u3002<\/li>\n<li>\u6743\u5a01\u670d\u52a1\u5668\u54cd\u5e94&#xff1a;\u89e3\u6790\u5668\u5411\u6743\u5a01\u670d\u52a1\u5668\u67e5\u8be2&#xff0c;\u83b7\u5f97 www.example.com \u7684 A \u8bb0\u5f55&#xff08;\u5982 93.184.216.34&#xff09;\u3002<\/li>\n<li>\u7ed3\u679c\u8fd4\u56de&#xff1a;\u89e3\u6790\u5668\u5c06\u7ed3\u679c\u7f13\u5b58\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u6d4f\u89c8\u5668\u6839\u636e IP \u5efa\u7acb HTTP\/HTTPS \u8fde\u63a5\u3002<\/li>\n<h4>6.2 \u7f13\u5b58\u4e0e\u66f4\u65b0\u7b56\u7565\u5b9e\u8df5<\/h4>\n<ul>\n<li>\u914d\u7f6e\u5408\u7406\u7684 TTL \u503c&#xff08;\u4f8b\u5982\u5e38\u7528\u7f51\u7ad9\u7684 TTL \u53ef\u8bbe\u4e3a\u51e0\u5206\u949f\u81f3\u51e0\u5c0f\u65f6&#xff09;\u3002<\/li>\n<li>\u5229\u7528\u672c\u5730 DNS \u7f13\u5b58\u4f18\u5316\u89e3\u6790\u901f\u5ea6&#xff0c;\u540c\u65f6\u914d\u5408\u89e3\u6790\u5668\u7684\u4e8c\u7ea7\u7f13\u5b58\u673a\u5236\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e03\u3001DNS\u89e3\u6790\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u4e0e\u4f18\u5316<\/h3>\n<h4>7.1 \u5e38\u89c1\u95ee\u9898<\/h4>\n<ul>\n<li>\u7f13\u5b58\u6c61\u67d3&#xff1a;\u6076\u610f\u7be1\u6539\u7f13\u5b58\u8bb0\u5f55&#xff0c;\u5bfc\u81f4\u9519\u8bef\u89e3\u6790\u3002<\/li>\n<li>\u89e3\u6790\u5ef6\u8fdf&#xff1a;\u7f51\u7edc\u95ee\u9898\u6216 DNS \u670d\u52a1\u5668\u54cd\u5e94\u65f6\u95f4\u957f\u53ef\u80fd\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li>DNS \u52ab\u6301&#xff1a;\u653b\u51fb\u8005\u901a\u8fc7\u4f2a\u9020\u54cd\u5e94\u6539\u53d8\u89e3\u6790\u7ed3\u679c\u3002<\/li>\n<\/ul>\n<h4>7.2 \u4f18\u5316\u63aa\u65bd<\/h4>\n<ul>\n<li>\u4f7f\u7528\u591a\u4e2a\u5907\u9009 DNS \u89e3\u6790\u5668&#xff0c;\u63d0\u5347\u5bb9\u9519\u6027\u4e0e\u54cd\u5e94\u901f\u5ea6\u3002<\/li>\n<li>\u5408\u7406\u914d\u7f6e TTL \u503c&#xff0c;\u5e73\u8861\u67e5\u8be2\u8d1f\u8f7d\u4e0e\u6570\u636e\u66f4\u65b0\u3002<\/li>\n<li>\u542f\u7528 DNSSEC \u4fdd\u969c\u89e3\u6790\u6570\u636e\u5b8c\u6574\u6027\u3002<\/li>\n<li>\u5b9e\u65bd DoH\/DoT \u63d0\u5347\u67e5\u8be2\u7684\u9690\u79c1\u6027\u548c\u5b89\u5168\u6027\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>\u516b\u3001\u603b\u7ed3<\/h3>\n<p>DNS \u89e3\u6790\u6d41\u7a0b\u8d2f\u7a7f\u4e8e\u4e92\u8054\u7f51\u901a\u4fe1\u7684\u6bcf\u4e2a\u73af\u8282&#xff0c;\u4ece\u672c\u5730\u7f13\u5b58\u3001\u64cd\u4f5c\u7cfb\u7edf\u548c hosts \u6587\u4ef6&#xff0c;\u5230\u9012\u5f52\u67e5\u8be2\u672c\u5730 DNS \u89e3\u6790\u5668&#xff0c;\u518d\u5230\u6839\u3001TLD \u548c\u6743\u5a01\u670d\u52a1\u5668&#xff0c;\u6784\u6210\u4e86\u4e00\u6761\u590d\u6742\u800c\u9ad8\u6548\u7684\u6570\u636e\u67e5\u8be2\u94fe\u8def\u3002\u901a\u8fc7\u7406\u89e3\u7f13\u5b58\u673a\u5236\u3001\u67e5\u8be2\u534f\u8bae\u4ee5\u53ca\u5b89\u5168\u6269\u5c55&#xff0c;\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u4f18\u5316\u7f51\u7edc\u8bbf\u95ee\u901f\u5ea6\u3001\u63d0\u9ad8\u7cfb\u7edf\u5b89\u5168\u6027&#xff0c;\u5e76\u4e3a\u95ee\u9898\u6392\u67e5\u63d0\u4f9b\u6709\u6548\u624b\u6bb5\u3002<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb840\u6b21\uff0c\u70b9\u8d5e9\u6b21\uff0c\u6536\u85cf25\u6b21\u3002A\u8bb0\u5f55\uff1aIPv4 \u5730\u5740\u6620\u5c04\u3002AAAA\u8bb0\u5f55\uff1aIPv6 \u5730\u5740\u6620\u5c04\u3002CNAME\u8bb0\u5f55\uff1a\u522b\u540d\u8bb0\u5f55\uff0c\u5c06\u4e00\u4e2a\u57df\u540d\u6620\u5c04\u4e3a\u53e6\u4e00\u4e2a\u57df\u540d\u3002MX\u8bb0\u5f55\uff1a\u90ae\u4ef6\u4ea4\u6362\u8bb0\u5f55\uff0c\u7528\u4e8e\u90ae\u4ef6\u670d\u52a1\u5668\u5b9a\u4f4d\u3002NS\u8bb0\u5f55\uff1a\u6307\u5b9a\u57df\u540d\u670d\u52a1\u5668\u3002DNS \u89e3\u6790\u6d41\u7a0b\u8d2f\u7a7f\u4e8e\u4e92\u8054\u7f51\u901a\u4fe1\u7684\u6bcf\u4e2a\u73af\u8282\uff0c\u4ece\u672c\u5730\u7f13\u5b58\u3001\u64cd\u4f5c\u7cfb\u7edf\u548c hosts \u6587\u4ef6\uff0c\u5230\u9012\u5f52\u67e5\u8be2\u672c\u5730 DNS \u89e3\u6790\u5668\uff0c\u518d\u5230\u6839\u3001TLD \u548c\u6743\u5a01\u670d\u52a1\u5668\uff0c\u6784\u6210\u4e86\u4e00\u6761\u590d\u6742\u800c\u9ad8\u6548\u7684\u6570\u636e\u67e5\u8be2\u94fe\u8def\u3002\u901a\u8fc7\u7406\u89e3\u7f13\u5b58\u673a\u5236\u3001\u67e5\u8be2\u534f\u8bae\u4ee5\u53ca\u5b89\u5168\u6269\u5c55\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u4f18\u5316\u7f51\u7edc\u8bbf\u95ee\u901f\u5ea6\u3001\u63d0\u9ad8\u7cfb\u7edf\u5b89\u5168\u6027\uff0c\u5e76\u4e3a\u95ee\u9898\u6392\u67e5\u63d0\u4f9b\u6709\u6548\u624b\u6bb5\u3002_dns\u89e3\u6790\u8fc7\u7a0b<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[43,44],"topic":[],"class_list":["post-25289","post","type-post","status-publish","format-standard","hentry","category-server","tag-43","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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