{"id":6878,"date":"2025-10-09T16:33:46","date_gmt":"2025-10-09T08:33:46","guid":{"rendered":"https:\/\/t.n-years.com\/?p=6878"},"modified":"2025-10-09T16:33:46","modified_gmt":"2025-10-09T08:33:46","slug":"%e5%9f%9f%e5%90%8d%e8%a7%a3%e6%9e%90cname%e6%9c%ba%e5%88%b6%e7%9a%84%e5%ae%9e%e7%8e%b0%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/t.n-years.com\/?p=6878","title":{"rendered":"\u57df\u540d\u89e3\u6790CNAME\u673a\u5236\u7684\u5b9e\u73b0\u539f\u7406"},"content":{"rendered":"<p>\u57df\u540d\u89e3\u6790\u7684 CNAME\uff08Canonical Name\uff09\u673a\u5236\u901a\u8fc7 DNS\uff08\u57df\u540d\u7cfb\u7edf\uff09\u5b9e\u73b0\u201c\u57df\u540d\u5230\u57df\u540d\u201d\u7684\u6620\u5c04\uff0c\u6838\u5fc3\u662f\u8ba9\u4e00\u4e2a\u57df\u540d\uff08\u522b\u540d\uff09\u6307\u5411\u53e6\u4e00\u4e2a\u57df\u540d\uff08\u89c4\u8303\u57df\u540d\uff09\uff0c\u4ece\u800c\u95f4\u63a5\u5173\u8054\u5230\u76ee\u6807 IP \u5730\u5740\u3002\u5176\u5b9e\u73b0\u539f\u7406\u53ef\u62c6\u89e3\u4e3a <strong>\u8bb0\u5f55\u7ed3\u6784\u5b9a\u4e49<\/strong> \u548c <strong>DNS \u89e3\u6790\u6d41\u7a0b<\/strong> \u4e24\u90e8\u5206\uff1a<\/p>\n<h3>\u4e00\u3001CNAME \u8bb0\u5f55\u7684\u7ed3\u6784\u5b9a\u4e49<\/h3>\n<p>CNAME \u662f DNS \u534f\u8bae\u4e2d\u6807\u51c6\u5316\u7684\u8bb0\u5f55\u7c7b\u578b\uff08Type 5\uff09\uff0c\u6bcf\u6761\u8bb0\u5f55\u5305\u542b\u4e24\u4e2a\u5173\u952e\u5b57\u6bb5\uff1a<\/p>\n<ul>\n<li><strong>\u522b\u540d\u57df\u540d\uff08Alias Domain\uff09<\/strong>\uff1a\u9700\u8981\u88ab\u89e3\u6790\u7684\u57df\u540d\uff08\u5982 <code>img.example.com<\/code>\uff09\u3002<\/li>\n<li><strong>\u76ee\u6807\u57df\u540d\uff08Canonical Domain\uff09<\/strong>\uff1a\u88ab\u6307\u5411\u7684\u201c\u89c4\u8303\u57df\u540d\u201d\uff08\u5982 <code>cdn.example-cdn.net<\/code>\uff09\uff0c\u8be5\u57df\u540d\u6700\u7ec8\u4f1a\u901a\u8fc7 A \u8bb0\u5f55\uff08IPv4\uff09\u6216 AAAA \u8bb0\u5f55\uff08IPv6\uff09\u7ed1\u5b9a\u5230\u5177\u4f53 IP \u5730\u5740\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u4e00\u6761 CNAME \u8bb0\u5f55\u7684\u914d\u7f6e\u5f62\u5f0f\u4e3a\uff1a<br \/>\n<code>img.example.com.  3600  IN  CNAME  cdn.example-cdn.net.<\/code><br \/>\n\uff08\u542b\u4e49\uff1a<code>img.example.com<\/code> \u5728 3600 \u79d2\u5185\uff081\u5c0f\u65f6\uff09\u6620\u5c04\u5230 <code>cdn.example-cdn.net<\/code>\uff09<\/p>\n<h3>\u4e8c\u3001CNAME \u89e3\u6790\u7684\u5b8c\u6574\u6d41\u7a0b<\/h3>\n<p>\u5f53\u7528\u6237\u8bbf\u95ee <code>img.example.com<\/code> \u65f6\uff0cDNS \u7cfb\u7edf\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b8c\u6210\u89e3\u6790\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u672c\u5730 DNS \u670d\u52a1\u5668\u67e5\u8be2\u522b\u540d\u57df\u540d<\/strong><br \/>\n\u7528\u6237\u8bbe\u5907\uff08\u5982\u6d4f\u89c8\u5668\uff09\u5411\u672c\u5730 DNS \u670d\u52a1\u5668\uff08\u901a\u5e38\u662f\u8fd0\u8425\u5546\u6216\u8def\u7531\u5668\u5206\u914d\u7684 DNS\uff09\u53d1\u9001\u67e5\u8be2\u8bf7\u6c42\uff1a\u201c<code>img.example.com<\/code> \u7684 IP \u662f\u4ec0\u4e48\uff1f\u201d<\/p>\n<\/li>\n<li>\n<p><strong>\u53d1\u73b0 CNAME \u8bb0\u5f55\uff0c\u89e6\u53d1\u4e8c\u6b21\u67e5\u8be2<\/strong><br \/>\n\u672c\u5730 DNS \u670d\u52a1\u5668\u67e5\u8be2 <code>img.example.com<\/code> \u7684 DNS \u8bb0\u5f55\uff0c\u53d1\u73b0\u5176\u7c7b\u578b\u4e3a CNAME\uff0c\u6307\u5411 <code>cdn.example-cdn.net<\/code>\u3002<br \/>\n\u6b64\u65f6\uff0c\u672c\u5730 DNS \u670d\u52a1\u5668\u4f1a\u81ea\u52a8\u53d1\u8d77\u7b2c\u4e8c\u6b21\u67e5\u8be2\uff1a\u201c<code>cdn.example-cdn.net<\/code> \u7684 IP \u662f\u4ec0\u4e48\uff1f\u201d<\/p>\n<\/li>\n<li>\n<p><strong>\u83b7\u53d6\u76ee\u6807\u57df\u540d\u7684 IP \u5730\u5740<\/strong><br \/>\n\u672c\u5730 DNS \u670d\u52a1\u5668\u67e5\u8be2 <code>cdn.example-cdn.net<\/code> \u7684 DNS \u8bb0\u5f55\uff0c\u5047\u8bbe\u8fd4\u56de A \u8bb0\u5f55\uff1a<code>cdn.example-cdn.net \u2192 192.0.2.1<\/code>\uff08\u76ee\u6807\u670d\u52a1\u5668 IP\uff09\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8fd4\u56de\u7ed3\u679c\u7ed9\u7528\u6237\u8bbe\u5907<\/strong><br \/>\n\u672c\u5730 DNS \u670d\u52a1\u5668\u5c06\u6700\u7ec8\u7684 IP \u5730\u5740\uff08<code>192.0.2.1<\/code>\uff09\u8fd4\u56de\u7ed9\u7528\u6237\u8bbe\u5907\uff0c\u7528\u6237\u8bbe\u5907\u901a\u8fc7\u8be5 IP \u8bbf\u95ee\u76ee\u6807\u670d\u52a1\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u4e09\u3001\u6838\u5fc3\u7279\u6027\u4e0e\u5e95\u5c42\u903b\u8f91<\/h3>\n<ol>\n<li>\n<p><strong>\u95f4\u63a5\u6620\u5c04\uff0c\u89e3\u8026 IP \u4f9d\u8d56<\/strong><br \/>\nCNAME \u4e0d\u76f4\u63a5\u5173\u8054 IP\uff0c\u800c\u662f\u901a\u8fc7\u201c\u57df\u540d\u2192\u57df\u540d\u201d\u7684\u8df3\u8f6c\uff0c\u8ba9\u522b\u540d\u57df\u540d\u4e0e\u76ee\u6807 IP \u89e3\u8026\u3002\u5f53\u76ee\u6807\u670d\u52a1\u5668 IP \u53d8\u66f4\u65f6\uff0c\u53ea\u9700\u4fee\u6539\u76ee\u6807\u57df\u540d\u7684 A \u8bb0\u5f55\uff0c\u6240\u6709\u6307\u5411\u5b83\u7684\u522b\u540d\u57df\u540d\u4f1a\u81ea\u52a8\u751f\u6548\uff0c\u65e0\u9700\u9010\u4e2a\u4fee\u6539\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9012\u5f52\u89e3\u6790\u7684\u4f9d\u8d56<\/strong><br \/>\nCNAME \u89e3\u6790\u4f9d\u8d56 DNS \u7684\u9012\u5f52\u67e5\u8be2\u80fd\u529b\uff1a\u672c\u5730 DNS \u670d\u52a1\u5668\u5fc5\u987b\u5177\u5907\u201c\u81ea\u52a8\u8ddf\u8fdb CNAME \u6307\u5411\u5e76\u7ee7\u7eed\u67e5\u8be2\u201d\u7684\u903b\u8f91\uff0c\u5426\u5219\u89e3\u6790\u4f1a\u4e2d\u65ad\u3002\u8fd9\u662f DNS \u534f\u8bae\u7684\u5f3a\u5236\u8981\u6c42\uff0c\u6240\u6709\u6807\u51c6 DNS \u670d\u52a1\u5668\u5747\u652f\u6301\u8be5\u903b\u8f91\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7f13\u5b58\u673a\u5236\u4f18\u5316\u6027\u80fd<\/strong><br \/>\n\u672c\u5730 DNS \u670d\u52a1\u5668\u4f1a\u7f13\u5b58 CNAME \u8bb0\u5f55\u548c\u76ee\u6807\u57df\u540d\u7684 IP \u8bb0\u5f55\uff08\u7f13\u5b58\u65f6\u95f4\u7531 TTL \u5b57\u6bb5\u6307\u5b9a\uff09\u3002\u540e\u7eed\u540c\u57df\u540d\u67e5\u8be2\u53ef\u76f4\u63a5\u8fd4\u56de\u7f13\u5b58\u7ed3\u679c\uff0c\u51cf\u5c11\u91cd\u590d\u67e5\u8be2\u8017\u65f6\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u56db\u3001\u4e0e\u5176\u4ed6\u8bb0\u5f55\u7c7b\u578b\u7684\u672c\u8d28\u533a\u522b<\/h3>\n<ul>\n<li><strong>\u4e0e A \u8bb0\u5f55\u5bf9\u6bd4<\/strong>\uff1aA \u8bb0\u5f55\u662f\u201c\u57df\u540d\u2192IP\u201d\u7684\u76f4\u63a5\u6620\u5c04\uff0cCNAME \u662f\u201c\u57df\u540d\u2192\u57df\u540d\u201d\u7684\u95f4\u63a5\u6620\u5c04\u3002<\/li>\n<li><strong>\u4e0e NS \u8bb0\u5f55\u5bf9\u6bd4<\/strong>\uff1aNS \u8bb0\u5f55\u6307\u5b9a\u57df\u540d\u7684 DNS \u670d\u52a1\u5668\uff08\u5982 <code>example.com<\/code> \u7684 DNS \u670d\u52a1\u5668\u662f <code>dns1.example.com<\/code>\uff09\uff0c\u800c CNAME \u7528\u4e8e\u57df\u540d\u95f4\u7684\u8df3\u8f6c\uff0c\u4e0d\u6d89\u53ca DNS \u670d\u52a1\u5668\u7684\u6307\u5b9a\u3002<\/li>\n<\/ul>\n<h3>\u603b\u7ed3<\/h3>\n<p>CNAME \u673a\u5236\u7684\u6838\u5fc3\u539f\u7406\u662f\u901a\u8fc7 DNS \u534f\u8bae\u5b9a\u4e49\u7684\u8bb0\u5f55\u7c7b\u578b\u548c\u9012\u5f52\u67e5\u8be2\u903b\u8f91\uff0c\u5b9e\u73b0\u57df\u540d\u5230\u57df\u540d\u7684\u6620\u5c04\uff0c\u6700\u7ec8\u95f4\u63a5\u83b7\u53d6\u76ee\u6807 IP\u3002\u8fd9\u79cd\u8bbe\u8ba1\u7684\u4ef7\u503c\u5728\u4e8e <strong>\u7b80\u5316\u591a\u57df\u540d\u7ba1\u7406<\/strong>\uff08\u5982\u591a\u4e2a\u5b50\u57df\u540d\u6307\u5411\u540c\u4e00\u670d\u52a1\uff09\u548c <strong>\u63d0\u9ad8 IP \u53d8\u66f4\u7684\u7075\u6d3b\u6027<\/strong>\uff08\u65e0\u9700\u4fee\u6539\u6240\u6709\u5173\u8054\u57df\u540d\uff09\uff0c\u662f CDN \u914d\u7f6e\u3001\u670d\u52a1\u8fc1\u79fb\u7b49\u573a\u666f\u7684\u57fa\u7840\u6280\u672f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57df\u540d\u89e3\u6790\u7684 CNAME\uff08Canonical Name\uff09\u673a\u5236\u901a\u8fc7 DNS\uff08\u57df\u540d\u7cfb\u7edf\uff09\u5b9e\u73b0\u201c\u57df\u540d\u5230\u57df\u540d\u201d\u7684\u6620\u5c04\uff0c\u6838&#8230; <\/p>\n<div class=\"read-more navbutton\"><a href=\"https:\/\/t.n-years.com\/?p=6878\">\u9605\u8bfb\u66f4\u591a<i class=\"fa fa-angle-double-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[123],"tags":[],"class_list":["post-6878","post","type-post","status-publish","format-standard","hentry","category-123"],"_links":{"self":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6878"}],"version-history":[{"count":1,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6878\/revisions"}],"predecessor-version":[{"id":6879,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6878\/revisions\/6879"}],"wp:attachment":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}