{"id":209925,"date":"2025-10-24T01:19:11","date_gmt":"2025-10-23T17:19:11","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209925\/"},"modified":"2025-10-24T01:19:12","modified_gmt":"2025-10-23T17:19:12","slug":"cdn-196","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209925\/","title":{"rendered":"CDN\u81ea\u52a8\u5316\u8fd0\u7ef4\u5b9e\u6218\uff1a\u6784\u5efa\u7a33\u5b9a\u3001\u9ad8\u6548\u4e0e\u81ea\u6108\u7684\u4ea4\u4ed8\u4f53\u7cfb"},"content":{"rendered":"<p>\u5728\u5f53\u4eca\u4e92\u8054\u7f51\u73af\u5883\u4e2d\uff0c\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\u5df2\u7ecf\u6210\u4e3a\u786e\u4fdd\u7f51\u7ad9\u548c\u5e94\u7528\u7a33\u5b9a\u3001\u4f4e\u5ef6\u8fdf\u4ea4\u4ed8\u7684\u5173\u952e\u7ec4\u4ef6\u3002\u968f\u7740\u4e1a\u52a1\u89c4\u6a21\u6269\u5c55\u4e0e\u5168\u7403\u5316\u9700\u6c42\u589e\u52a0\uff0c\u624b\u52a8\u8fd0\u7ef4\/CDN\u914d\u7f6e\u5df2\u65e0\u6cd5\u6ee1\u8db3\u5bf9\u5b9e\u65f6\u6027\u3001\u53ef\u9760\u6027\u548c\u6210\u672c\u63a7\u5236\u7684\u8981\u6c42\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u7ed3\u5408\u5b9e\u9645\u8fd0\u7ef4\u7ecf\u9a8c\uff0c\u8be6\u7ec6\u8bb2\u89e3\u5982\u4f55\u901a\u8fc7\u81ea\u52a8\u5316\u6784\u5efa\u4e00\u5957\u7a33\u5b9a\u3001\u9ad8\u6548\u5e76\u5177\u5907\u81ea\u6108\u80fd\u529b\u7684CDN\u4ea4\u4ed8\u4f53\u7cfb\uff0c\u6db5\u76d6\u539f\u7406\u3001\u5b9e\u6218\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae\u3002<\/p>\n<h2>CDN\u81ea\u52a8\u5316\u8fd0\u7ef4\u7684\u6838\u5fc3\u539f\u7406<\/h2>\n<p>CDN\u81ea\u52a8\u5316\u8fd0\u7ef4\u4e0d\u662f\u5355\u4e00\u5de5\u5177\u6216\u811a\u672c\u80fd\u5b8c\u6210\u7684\uff0c\u9700\u8981\u5c06\u76d1\u63a7\u3001\u914d\u7f6e\u7ba1\u7406\u3001\u90e8\u7f72\u6d41\u6c34\u7ebf\u4e0e\u81ea\u52a8\u5316\u7b56\u7565\u6709\u673a\u7ed3\u5408\u3002\u5176\u6838\u5fc3\u5305\u542b\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<h3>1. \u58f0\u660e\u5f0f\u914d\u7f6e\u4e0e\u57fa\u7840\u8bbe\u65bd\u5373\u4ee3\u7801\uff08IaC\uff09<\/h3>\n<p>\u4f7f\u7528Terraform\u3001Pulumi\u7b49IaC\u5de5\u5177\u5bf9CDN\u8d44\u6e90\u3001DNS\u3001\u8d1f\u8f7d\u5747\u8861\u5668\u3001\u8bc1\u4e66\u7ba1\u7406\u8fdb\u884c\u58f0\u660e\u5f0f\u7ba1\u7406\uff0c\u53ef\u4ee5\u5b9e\u73b0\u53ef\u5ba1\u8ba1\u3001\u53ef\u56de\u6eda\u7684\u914d\u7f6e\u53d8\u66f4\u3002\u793a\u4f8b\u5b9e\u8df5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528Terraform\u7ba1\u7406CDN\u670d\u52a1\uff08\u5982Cloudflare\u3001Akamai\u3001AWS CloudFront\uff09\u7684\u57df\u540d\u3001\u7f13\u5b58\u89c4\u5219\u4e0e\u81ea\u5b9a\u4e49\u5934\u90e8\u3002<\/li>\n<li>\u5c06\u8bc1\u4e66\u7b7e\u53d1\u4e0e\u81ea\u52a8\u7eed\u671f\u7eb3\u5165\u540c\u4e00\u7ba1\u9053\uff0c\u4f8b\u5982\u901a\u8fc7ACME\u534f\u8bae\u4e0eLet&#8217;s Encrypt\u81ea\u52a8\u5316\u3002\u82e5\u4e1a\u52a1\u6d89\u53ca\u591a\u533a\u57df\u90e8\u7f72\uff0c\u8bc1\u4e66\u6258\u7ba1\u5e94\u652f\u6301\u591a\u79df\u6237\u548c\u591a\u7ebf\u8def\u3002<\/li>\n<\/ul>\n<h3>2. 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\u53ef\u89c2\u6d4b\u6027\u4e0e\u81ea\u52a8\u5316\u54cd\u5e94<\/h3>\n<p>\u81ea\u52a8\u5316\u7684\u524d\u63d0\u662f\u5bf9\u7cfb\u7edf\u6709\u8db3\u591f\u7684\u53ef\u89c2\u6d4b\u6027\u3002\u9700\u8981\u6784\u5efa\u5168\u9762\u7684\u76d1\u63a7\u4e0e\u544a\u8b66\u4f53\u7cfb\uff0c\u5efa\u8bae\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u5b9e\u65f6\u6d41\u91cf\u76d1\u63a7\uff1a\u5e26\u5bbd\u3001\u8bf7\u6c42\u91cf\u3001\u9519\u8bef\u7387\uff085xx\/4xx\uff09\u3001\u7f13\u5b58\u547d\u4e2d\u7387\u3002<\/li>\n<li>\u94fe\u8def\u8d28\u91cf\u76d1\u63a7\uff1a\u5404\u533a\u57df\u5ef6\u8fdf\u3001\u4e22\u5305\u7387\u3001DNS\u89e3\u6790\u65f6\u95f4\u3002<\/li>\n<li>\u5408\u6210\u76d1\u6d4b\uff08Synthetic 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Steering\u3001Anycast\u6743\u91cd\u8c03\u6574\uff09\uff0c\u5c06\u6d41\u91cf\u5f15\u5bfc\u5230\u90bb\u8fd1\u533a\u57df\u7684\u8282\u70b9\u3002<\/li>\n<li>\u542f\u7528Origin Shield\u6216\u8fb9\u7f18\u9884\u70ed\uff08pre-warm\uff09\u4ee5\u4fdd\u8bc1\u65b0\u7684\u56de\u6e90\u8def\u5f84\u5feb\u901f\u6062\u590d\u7f13\u5b58\u547d\u4e2d\u7387\u3002<\/li>\n<li>\u5728DNS\u5c42\u9762\u914d\u5408\u5065\u5eb7\u68c0\u67e5\u81ea\u52a8\u8c03\u6574\u89e3\u6790\u7b56\u7565\uff0c\u6216\u901a\u8fc7\u591aCDN\u63a7\u5236\u9762\u5b9e\u73b0\u65e0\u7f1d\u5207\u6362\u3002<\/li>\n<\/ul>\n<h3>\u573a\u666f\u4e09\uff1a\u5185\u5bb9\u66f4\u65b0\u4e0e\u7f13\u5b58\u4e00\u81f4\u6027<\/h3>\n<p>\u95ee\u9898\u8868\u73b0\uff1a\u9759\u6001\u8d44\u6e90\u9891\u7e41\u53d1\u5e03\uff0c\u9700\u4fdd\u8bc1\u7f13\u5b58\u88ab\u53ca\u65f6\u540c\u6b65\u6e05\u7406\u3002\u81ea\u52a8\u5316\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>\u901a\u8fc7CI\u6d41\u6c34\u7ebf\u5728\u53d1\u5e03\u65b0\u7248\u672c\u65f6\u81ea\u52a8\u53d1\u8d77CDN\u7f13\u5b58\u6e05\u7406\uff08Purge\uff09\uff0c\u5e76\u5bf9\u7279\u5b9a\u8def\u5f84\u8fdb\u884c\u5931\u6548\u6d4b\u8bd5\u3002<\/li>\n<li>\u4f7f\u7528\u7248\u672c\u5316\u8d44\u6e90\u8def\u5f84\uff08content hashing\uff09\u914d\u5408\u957fTTL\uff0c\u51cf\u5c11\u9891\u7e41Purge\u5e26\u6765\u7684\u6210\u672c\u4e0e\u4e0d\u786e\u5b9a\u6027\u3002<\/li>\n<\/ul>\n<h2>\u6784\u5efa\u81ea\u6108\u4f53\u7cfb\u7684\u5173\u952e\u6280\u672f\u7ec4\u4ef6<\/h2>\n<h3>1. \u81ea\u52a8\u5316\u6545\u969c\u63a2\u6d4b\u4e0e\u7b56\u7565\u5f15\u64ce<\/h3>\n<p>\u7b56\u7565\u5f15\u64ce\u662f\u81ea\u6108\u4f53\u7cfb\u7684\u5927\u8111\uff0c\u63a5\u6536\u6765\u81eaPrometheus\u3001Grafana\u3001ELK\u6216\u4e91\u76d1\u63a7\u7684\u6307\u6807\u5e76\u51b3\u5b9a\u52a8\u4f5c\u3002\u5b9e\u73b0\u8981\u70b9\uff1a<\/p>\n<ul>\n<li>\u89c4\u5219\u5316\u4e0e\u6a21\u578b\u5316\uff1a\u5c06\u5e38\u89c1\u6545\u969c\u6a21\u5f0f\u62bd\u8c61\u4e3a\u89c4\u5219\uff08\u5982\u201c\u533a\u57df\u9519\u8bef\u7387&gt;1%\u4e14\u6301\u7eed5\u5206\u949f\u201d\u89e6\u53d1\u6d41\u91cf\u5207\u6362\uff09\u3002<\/li>\n<li>\u52a8\u4f5c\u5e93\uff1a\u5305\u62ecDNS\u5207\u6362\u3001CDN\u89c4\u5219\u53d8\u66f4\u3001\u56de\u6e90\u66ff\u6362\u3001\u8282\u70b9\u9694\u79bb\u3001\u81ea\u52a8\u5347\u7ea7\u7b49\u3002<\/li>\n<li>\u5b89\u5168\u4e0e\u5ba1\u6279\uff1a\u5bf9\u9ad8\u98ce\u9669\u52a8\u4f5c\uff08\u6bd4\u5982\u6e05\u7a7a\u5168\u90e8\u7f13\u5b58\u6216\u5927\u89c4\u6a21\u56de\u6e90\u5207\u6362\uff09\u8bbe\u7f6e\u4eba\u5de5\u5ba1\u6279\u6216\u5206\u7ea7\u81ea\u52a8\u5316\u3002<\/li>\n<\/ul>\n<h3>2. 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