{"id":204017,"date":"2025-05-29T09:07:07","date_gmt":"2025-05-29T01:07:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204017\/"},"modified":"2025-05-29T09:07:07","modified_gmt":"2025-05-29T01:07:07","slug":"dns-%e5%8f%8a%e5%85%b6%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204017\/","title":{"rendered":"DNS \u53ca\u5176\u5de5\u4f5c\u539f\u7406"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>DNS \u53ca\u5176\u5de5\u4f5c\u539f\u7406<\/h1>\n<p>\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aDNS \u53ca\u5176\u5de5\u4f5c\u539f\u7406\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241019\/17293005386713083af186f.jpg\" class=\"aligncenter\"><\/p>\n<p>\u5982\u679c\u60a8\u662f\u540e\u7aef\u5f00\u53d1\u4eba\u5458\uff0c\u4e86\u89e3 DNS\uff08\u57df\u540d\u7cfb\u7edf\uff09\u81f3\u5173\u91cd\u8981\u3002 DNS \u662f\u4e00\u9879\u57fa\u7840\u6280\u672f\uff0c\u76f4\u63a5\u5f71\u54cd\u7528\u6237\u8bbf\u95ee\u60a8\u6784\u5efa\u7684\u670d\u52a1\u548c\u5e94\u7528\u7a0b\u5e8f\u7684\u65b9\u5f0f\u3002 <\/p>\n<p>\u4e86\u89e3 DNS \u7684\u5de5\u4f5c\u539f\u7406\u4f7f\u60a8\u80fd\u591f\u89e3\u51b3\u8fde\u63a5\u95ee\u9898\u3001\u8bbe\u8ba1\u53ef\u6269\u5c55\u7cfb\u7edf\u5e76\u589e\u5f3a\u5e94\u7528\u7a0b\u5e8f\u7684\u53ef\u9760\u6027\u3002 <\/p>\n<p>\u57df\u540d\u7cfb\u7edf (DNS) \u901a\u5e38\u88ab\u79f0\u4e3a\u201c\u4e92\u8054\u7f51\u7535\u8bdd\u7c3f\u201d\u3002\u5b83\u662f\u73b0\u4ee3\u4e92\u8054\u7f51\u57fa\u7840\u8bbe\u65bd\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u6709\u52a9\u4e8e\u5c06\u4eba\u7c7b\u53ef\u8bfb\u7684\u57df\u540d\u8fde\u63a5\u5230\u673a\u5668\u53ef\u7406\u89e3\u7684 IP \u5730\u5740\u3002\u5982\u679c\u6ca1\u6709 DNS\uff0c\u7528\u6237\u5c06\u5fc5\u987b\u8bb0\u4f4f\u6570\u5b57 IP \u5730\u5740\uff08\u5982\u201c192.0.2.1\u201d\uff09\u624d\u80fd\u8bbf\u95ee\u7f51\u7ad9\uff0c\u800c\u4e0d\u662f\u7b80\u5355\u5730\u952e\u5165\u201cexample.com\u201d\u7b49\u57df\u540d\u3002<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8 DNS \u7684\u57fa\u7840\u77e5\u8bc6\u3001\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u4ee5\u53ca\u5b83\u5728\u6211\u4eec\u4e0e\u4e92\u8054\u7f51\u4ea4\u4e92\u4e2d\u7684\u91cd\u8981\u4f5c\u7528\u3002<\/p>\n<p>DNS \u4ee3\u8868\u57df\u540d\u7cfb\u7edf\u3002\u5b83\u662f\u4e00\u79cd\u5206\u5c42\u547d\u540d\u7cfb\u7edf\uff0c\u5141\u8bb8\u901a\u8fc7\u57df\u540d\u6765\u8bc6\u522b\u8ba1\u7b97\u673a\u3001\u670d\u52a1\u6216\u4efb\u4f55\u8fde\u63a5\u5230\u4e92\u8054\u7f51\u7684\u8d44\u6e90\uff0c\u57df\u540d\u6bd4\u6570\u5b57 IP \u5730\u5740\u66f4\u5bb9\u6613\u88ab\u4eba\u4eec\u8bb0\u4f4f\u3002\u6bcf\u4e2a\u57df\u540d\u90fd\u6620\u5c04\u5230\u4e00\u4e2a\u7279\u5b9a\u7684 IP \u5730\u5740\uff0c\u8be5\u5730\u5740\u5bf9\u5e94\u4e8e\u6258\u7ba1\u7f51\u7ad9\u6216\u670d\u52a1\u7684\u670d\u52a1\u5668\u3002 DNS \u8d1f\u8d23\u5c06\u8fd9\u4e9b\u57df\u540d\u7ffb\u8bd1\uff08\u6216\u89e3\u6790\uff09\u4e3a IP \u5730\u5740\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u57df\u540d\uff1a<\/strong> \u8fd9\u4e9b\u662f\u4eba\u7c7b\u53ef\u8bfb\u7684\u540d\u79f0\uff0c\u4f8b\u5982 google.com\u3002\u5b83\u4eec\u91c7\u7528\u5206\u5c42\u7ed3\u6784\uff0c\u7531\u4e0d\u540c\u90e8\u5206\uff08\u4f8b\u5982 www\u3001example \u548c .com\uff09\u7ec4\u6210\uff0c\u5bf9\u5e94\u4e8e\u4e0d\u540c\u7ea7\u522b\u7684 DNS \u7ed3\u6784\u3002<\/p>\n<\/li>\n<li>\n<p><strong>IP \u5730\u5740\uff1a<\/strong> \u8fd9\u662f\u5206\u914d\u7ed9\u8fde\u63a5\u5230\u7f51\u7edc\u7684\u6bcf\u4e2a\u8bbe\u5907\u6216\u670d\u52a1\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002 DNS \u5c06\u57df\u540d\u6620\u5c04\u5230\u5404\u81ea\u7684 IP \u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p><strong>DNS \u670d\u52a1\u5668\uff1a<\/strong> \u8fd9\u4e9b\u662f\u5b58\u50a8\u6709\u5173\u57df\u540d\u548c IP \u5730\u5740\u4fe1\u606f\u7684\u4e13\u7528\u670d\u52a1\u5668\u3002\u4e0d\u540c\u7c7b\u578b\u7684 DNS \u670d\u52a1\u5668\u534f\u540c\u5de5\u4f5c\uff0c\u5c06\u57df\u540d\u89e3\u6790\u4e3a IP \u5730\u5740\u3002<\/p>\n<\/li>\n<\/ol>\n<p>DNS \u89e3\u6790\u662f\u5c06\u57df\u540d\u8f6c\u6362\u4e3a IP \u5730\u5740\u7684\u8fc7\u7a0b\uff0c\u6d89\u53ca\u591a\u4e2a\u6b65\u9aa4\u4ee5\u53ca\u4e0d\u540c DNS \u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4ea4\u4e92\u3002\u4ee5\u4e0b\u662f DNS \u5de5\u4f5c\u539f\u7406\u7684\u7b80\u5316\u5206\u6b65\u5206\u6790\uff1a<\/p>\n<p>\u5f53\u60a8\u5728\u7f51\u7edc\u6d4f\u89c8\u5668\u4e2d\u8f93\u5165\u57df\u540d\uff08\u4f8b\u5982 example.com\uff09\u65f6\uff0c\u60a8\u7684\u8ba1\u7b97\u673a\u5f00\u59cb\u5c06\u8be5\u540d\u79f0\u89e3\u6790\u4e3a\u5176\u76f8\u5e94\u7684 IP \u5730\u5740\u3002<\/p>\n<p>\u5728\u8054\u7cfb\u5916\u90e8\u670d\u52a1\u5668\u4e4b\u524d\uff0c\u60a8\u7684\u8ba1\u7b97\u673a\u4f1a\u68c0\u67e5\u5176\u672c\u5730 DNS \u7f13\u5b58\u3002\u8be5\u7f13\u5b58\u5b58\u50a8\u6700\u8fd1\u8bbf\u95ee\u7684\u57df\u540d\u7ffb\u8bd1\u4ee5\u52a0\u5feb\u8be5\u8fc7\u7a0b\u3002\u5982\u679c example.com \u7684 IP \u5730\u5740\u5df2\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\uff0c\u5219\u8fdb\u7a0b\u5728\u6b64\u505c\u6b62\uff0c\u5e76\u7acb\u5373\u52a0\u8f7d\u7f51\u7ad9\u3002<\/p>\n<p>\u5982\u679c\u5728\u672c\u5730\u7f13\u5b58\u4e2d\u627e\u4e0d\u5230\u8be5\u5730\u5740\uff0c\u8bf7\u6c42\u5c06\u8f6c\u53d1\u5230<strong>\u9012\u5f52 DNS \u670d\u52a1\u5668<\/strong>\uff08\u901a\u5e38\u7531\u60a8\u7684 ISP \u6216\u7b2c\u4e09\u65b9 DNS \u63d0\u4f9b\u5546\uff08\u4f8b\u5982 Google DNS \u6216 Cloudflare DNS\uff09\u8fd0\u8425\uff09\u3002\u9012\u5f52\u670d\u52a1\u5668\u68c0\u67e5\u81ea\u5df1\u7684\u7f13\u5b58\uff0c\u5982\u679c\u672a\u627e\u5230\u57df\uff0c\u5219\u7ee7\u7eed\u4e0b\u4e00\u6b65\u3002<\/p>\n<p>\u9012\u5f52 DNS \u670d\u52a1\u5668\u7136\u540e\u67e5\u8be2 <strong>\u6839 DNS \u670d\u52a1\u5668<\/strong> \u4e4b\u4e00\uff0c\u5b83\u4eec\u662f DNS \u5c42\u6b21\u7ed3\u6784\u4e2d\u7684\u9876\u7ea7\u670d\u52a1\u5668\u3002\u8fd9\u4e9b\u670d\u52a1\u5668\u4e0d\u76f4\u63a5\u5b58\u50a8\u57df\u540d\u4fe1\u606f\uff0c\u4f46\u5b83\u4eec\u6839\u636e\u9876\u7ea7\u57df (TLD) \u77e5\u9053\u63a5\u4e0b\u6765\u5c06\u67e5\u8be2\u5b9a\u5411\u5230\u54ea\u91cc\uff0c\u4f8b\u5982 .com\u3001.org \u6216 .net\u3002<\/p>\n<p>\u6839 DNS \u670d\u52a1\u5668\u5c06\u9012\u5f52\u670d\u52a1\u5668\u5b9a\u5411\u5230\u8d1f\u8d23\u57df\u7684\u9876\u7ea7\u57df\uff08\u4f8b\u5982 .com TLD\uff09\u7684 <strong>TLD DNS \u670d\u52a1\u5668<\/strong>\u3002\u8be5\u670d\u52a1\u5668\u63d0\u4f9b\u7279\u5b9a\u57df\u7684<strong>\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668<\/strong>\u7684\u5730\u5740\u3002<\/p>\n<p><strong>\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668<\/strong>\u662fDNS\u67e5\u8be2\u8fc7\u7a0b\u7684\u6700\u540e\u4e00\u7ad9\u3002\u5b83\u5305\u542b\u57df\u540d\uff08\u4f8b\u5982 example.com\uff09\u548c\u6258\u7ba1\u7f51\u7ad9\u7684\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u4e4b\u95f4\u7684\u5b9e\u9645\u6620\u5c04\u3002\u6743\u5a01\u670d\u52a1\u5668\u7528 IP \u5730\u5740\u54cd\u5e94\u9012\u5f52\u670d\u52a1\u5668\u3002<\/p>\n<p>\u7136\u540e\uff0c\u9012\u5f52 DNS \u670d\u52a1\u5668\u5c06 IP \u5730\u5740\u53d1\u9001\u56de\u7528\u6237\u7684\u6d4f\u89c8\u5668\uff0c\u4f7f\u5176\u80fd\u591f\u4e0e\u6b63\u786e\u7684 Web \u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u5e76\u68c0\u7d22\u7f51\u7ad9\u5185\u5bb9\u3002<\/p>\n<p>\u73b0\u5728\u6d4f\u89c8\u5668\u6709\u4e86 IP \u5730\u5740\uff0c\u5b83\u53ef\u4ee5\u53d1\u8d77\u4e0e Web \u670d\u52a1\u5668\u7684\u8fde\u63a5\uff0c\u5e76\u52a0\u8f7d\u8bf7\u6c42\u7684\u7f51\u7ad9\u3002<\/p>\n<p>\u5728\u6b64\u8fc7\u7a0b\u4e2d\u7684\u5404\u4e2a\u70b9\uff08\u5728\u60a8\u7684\u8ba1\u7b97\u673a\u3001\u9012\u5f52 DNS \u670d\u52a1\u5668\u7b49\uff09\u4e0a\u7f13\u5b58 DNS \u67e5\u8be2\uff0c\u4ee5\u63d0\u9ad8\u901f\u5ea6\u5e76\u51cf\u5c11 DNS \u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u3002\u5f53\u60a8\u91cd\u65b0\u8bbf\u95ee\u67d0\u4e2a\u7ad9\u70b9\u65f6\uff0cDNS \u7f13\u5b58\u901a\u5e38\u610f\u5473\u7740\u60a8\u65e0\u9700\u91cd\u590d\u6574\u4e2a\u8fc7\u7a0b\u3002<\/p>\n<p>\u4e3a\u4e86\u66f4\u5168\u9762\u5730\u4e86\u89e3 DNS\uff0c\u4e86\u89e3\u53c2\u4e0e\u6b64\u8fc7\u7a0b\u7684\u4e0d\u540c\u7c7b\u578b\u7684 DNS \u670d\u52a1\u5668\u975e\u5e38\u91cd\u8981\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u9012\u5f52 DNS \u670d\u52a1\u5668\uff1a<\/strong> \u8fd9\u4e9b\u662f\u7528\u6237\u548c\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4e2d\u4ecb\u3002\u5b83\u4eec\u6267\u884c\u4e0a\u8ff0\u67e5\u8be2\u8fc7\u7a0b\u5e76\u7f13\u5b58\u54cd\u5e94\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6743\u5a01 DNS \u670d\u52a1\u5668\uff1a<\/strong> \u8fd9\u4e9b\u670d\u52a1\u5668\u5b58\u50a8\u57df\u7684\u5b9e\u9645 DNS \u8bb0\u5f55\uff08\u4f8b\u5982 A \u8bb0\u5f55\uff09\uff0c\u5e76\u4f7f\u7528\u6b63\u786e\u7684 IP \u5730\u5740\u54cd\u5e94\u67e5\u8be2\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6839 DNS \u670d\u52a1\u5668\uff1a<\/strong> \u8fd9\u4e9b\u670d\u52a1\u5668\u7ba1\u7406 DNS \u5c42\u6b21\u7ed3\u6784\u6839\u90e8\u7684\u67e5\u8be2\uff0c\u5c06\u67e5\u8be2\u5b9a\u5411\u5230\u9002\u5f53\u7684 TLD \u670d\u52a1\u5668\u3002<\/p>\n<\/li>\n<li>\n<p><strong>TLD \u670d\u52a1\u5668\uff1a<\/strong> \u8fd9\u4e9b\u670d\u52a1\u5668\u5904\u7406\u4e0e\u7279\u5b9a\u9876\u7ea7\u57df\uff08\u5982 .com\u3001.org\uff09\u6216\u7279\u5b9a\u4e8e\u56fd\u5bb6\/\u5730\u533a\u7684\u57df\uff08\u5982 .uk \u6216 .jp\uff09\u76f8\u5173\u7684\u67e5\u8be2\u3002<\/p>\n<\/li>\n<\/ul>\n<p>DNS \u8bb0\u5f55\u6709\u591a\u79cd\u7c7b\u578b\uff0c\u6bcf\u79cd\u90fd\u6709\u4e0d\u540c\u7684\u7528\u9014\u3002\u4e00\u4e9b\u5e38\u89c1\u7684\u7c7b\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li> <strong>A \u8bb0\u5f55\uff08\u5730\u5740\u8bb0\u5f55\uff09\uff1a<\/strong> \u5c06\u57df\u540d\u6620\u5c04\u5230 IPv4 \u5730\u5740\u3002<\/li>\n<li> <strong>AAAA \u8bb0\u5f55\uff1a<\/strong> \u5c06\u57df\u540d\u6620\u5c04\u5230 IPv6 \u5730\u5740\u3002<\/li>\n<li> <strong>CNAME\uff08\u89c4\u8303\u540d\u79f0\u8bb0\u5f55\uff09\uff1a<\/strong> \u5c06\u4e00\u4e2a\u57df\u540d\u6620\u5c04\u5230\u53e6\u4e00\u4e2a\u57df\u540d\uff08\u5bf9\u4e8e\u5b50\u57df\u6709\u7528\uff09\u3002<\/li>\n<li> <strong>MX \u8bb0\u5f55\uff08\u90ae\u4ef6\u4ea4\u6362\uff09\uff1a<\/strong> \u6307\u5b9a\u8d1f\u8d23\u4ee3\u8868\u57df\u63a5\u6536\u7535\u5b50\u90ae\u4ef6\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u3002<\/li>\n<li> <strong>NS \u8bb0\u5f55\uff08\u540d\u79f0\u670d\u52a1\u5668\uff09\uff1a<\/strong> \u6307\u5b9a\u57df\u7684\u6743\u5a01 DNS \u670d\u52a1\u5668\u3002<\/li>\n<li> <strong>TXT \u8bb0\u5f55\uff1a<\/strong> \u4fdd\u5b58\u7528\u4e8e\u5404\u79cd\u7528\u9014\u7684\u4efb\u610f\u6587\u672c\u4fe1\u606f\uff0c\u5305\u62ec\u57df\u6240\u6709\u6743\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n<p>\u867d\u7136 DNS 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\u4e00\u79cd\u65e8\u5728\u901a\u8fc7\u63d0\u4f9b\u8eab\u4efd\u9a8c\u8bc1\u548c\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u6765\u4fdd\u62a4 DNS \u5b89\u5168\u7684\u534f\u8bae\u3002<\/p>\n<\/li>\n<\/ul>\n<p>DNS \u5728\u4e92\u8054\u7f51\u7684\u5e73\u7a33\u8fd0\u884c\u4e2d\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5b83\u5c06\u6613\u4e8e\u8bb0\u5fc6\u7684\u57df\u540d\u8f6c\u6362\u4e3a\u8ba1\u7b97\u673a\u53ef\u4ee5\u7406\u89e3\u7684 IP \u5730\u5740\u3002\u8be5\u7cfb\u7edf\u88ab\u8bbe\u8ba1\u4e3a\u5206\u5c42\u548c\u5206\u5e03\u5f0f\uff0c\u5373\u4f7f\u968f\u7740\u4e92\u8054\u7f51\u7684\u53d1\u5c55\u4e5f\u80fd\u786e\u4fdd\u53ef\u6269\u5c55\u6027\u548c\u6548\u7387\u3002\u5c3d\u7ba1\u5f88\u590d\u6742\uff0c\u4f46 DNS \u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u5bf9\u7528\u6237\u6765\u8bf4\u4ecd\u7136\u662f\u4e0d\u53ef\u89c1\u7684\uff0c\u8fd9\u4f7f\u5f97\u6d4f\u89c8\u7f51\u9875\u5c31\u50cf\u8f93\u5165 URL 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