{"id":210153,"date":"2025-10-24T06:56:47","date_gmt":"2025-10-23T22:56:47","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210153\/"},"modified":"2025-10-24T06:56:48","modified_gmt":"2025-10-23T22:56:48","slug":"cdn-300","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210153\/","title":{"rendered":"CDN\u81ea\u52a8\u5316\u7ba1\u7406\u65b0\u8d8b\u52bf\uff1a\u667a\u80fd\u8fb9\u7f18\u4e0e\u96f6\u63a5\u89e6\u8fd0\u7ef4"},"content":{"rendered":"<p>\u968f\u7740\u4e92\u8054\u7f51\u6d41\u91cf\u548c\u4e1a\u52a1\u5206\u5e03\u7684\u5168\u7403\u5316\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u7ba1\u7406\u6b63\u5728\u4ece\u4f20\u7edf\u7684\u9759\u6001\u914d\u7f6e\u3001\u4eba\u5de5\u5e72\u9884\u6a21\u5f0f\uff0c\u5411\u9ad8\u5ea6\u81ea\u52a8\u5316\u3001\u667a\u80fd\u5316\u7684\u8fb9\u7f18\u8ba1\u7b97\u548c\u201c\u96f6\u63a5\u89e6\u8fd0\u7ef4\u201d\uff08Zero-touch Operations\uff09\u8f6c\u53d8\u3002\u5bf9\u4e8e\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7406\u89e3\u8fd9\u4e00\u6f14\u8fdb\u7684\u539f\u7406\u4e0e\u5e94\u7528\u573a\u666f\uff0c\u6709\u52a9\u4e8e\u5728\u9009\u8d2d\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u3001\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\u7b49\u57fa\u7840\u8bbe\u65bd\u65f6\u540c\u6b65\u4f18\u5316\u5206\u53d1\u67b6\u6784\u4e0e\u8fd0\u7ef4\u6d41\u7a0b\uff0c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u5e76\u964d\u4f4e\u8fd0\u8425\u6210\u672c\u3002<\/p>\n<h2>\u539f\u7406\uff1a\u667a\u80fd\u8fb9\u7f18\u4e0e\u96f6\u63a5\u89e6\u8fd0\u7ef4\u7684\u6280\u672f\u6784\u6210<\/h2>\n<p><strong>\u667a\u80fd\u8fb9\u7f18<\/strong>\u5e76\u975e\u7b80\u5355\u5730\u5728\u66f4\u591a\u8282\u70b9\u4e0a\u653e\u7f6e\u7f13\u5b58\uff0c\u800c\u662f\u5c06\u8ba1\u7b97\u3001\u51b3\u7b56\u548c\u7b56\u7565\u4e0b\u6c89\u5230\u63a5\u8fd1\u7528\u6237\u7684\u7f51\u7edc\u8fb9\u7f18\u3002\u8fd9\u4e00\u6a21\u5f0f\u4f9d\u8d56\u4e8e\u51e0\u7c7b\u5173\u952e\u6280\u672f\uff1a<\/p>\n<ul>\n<li><strong>\u8fb9\u7f18\u8ba1\u7b97\u5e73\u53f0\u4e0e\u65e0\u670d\u52a1\u5668\u6846\u67b6<\/strong>\uff1a\u5982\u8fb9\u7f18\u51fd\u6570\uff08Edge Functions\uff09\u6216 Lambda@Edge \u5f0f\u7684\u6267\u884c\u73af\u5883\uff0c\u652f\u6301\u5728 POP\uff08Point of Presence\uff09\u5904\u8fd0\u884c\u81ea\u5b9a\u4e49\u903b\u8f91\uff0c\u5b9e\u73b0\u4e2a\u6027\u5316\u54cd\u5e94\u3001A\/B \u6d4b\u8bd5\u3001\u8bf7\u6c42\u9274\u6743\u7b49\u3002<\/li>\n<li><strong>\u5206\u5e03\u5f0f\u6570\u636e\u5e73\u9762\u4e0eKV\u5b58\u50a8<\/strong>\uff1a\u5728\u591a\u4e2a\u8fb9\u7f18\u8282\u70b9\u4e0a\u63d0\u4f9b\u4f4e\u5ef6\u8fdf\u7684\u6570\u636e\u8bfb\u5199\uff0c\u4f8b\u5982\u5206\u5e03\u5f0f KV\uff08\u952e\u503c\uff09\u670d\u52a1\u6216\u8fd1\u7ebf\u4e00\u81f4\u6027\u7f13\u5b58\uff0c\u7528\u4ee5\u51cf\u5c11\u56de\u6e90\u8bf7\u6c42\u3002<\/li>\n<li><strong>\u667a\u80fd\u8def\u7531\u4e0e\u6d41\u91cf\u63a7\u5236<\/strong>\uff1a\u7ed3\u5408 Anycast\u3001BGP \u4f18\u5316\u4e0e\u5730\u7406\/\u5ef6\u8fdf\u611f\u77e5\u7684\u8d1f\u8f7d\u5747\u8861\uff0c\u52a8\u6001\u5c06\u7528\u6237\u6d41\u91cf\u5bfc\u5411\u6700\u4f73 POP\u3002<\/li>\n<li><strong>\u53ef\u89c2\u6d4b\u6027\u4e0e\u9065\u6d4b\u94fe\u8def<\/strong>\uff1a\u91c7\u7528 OpenTelemetry\u3001Prometheus\u3001Jaeger \u7b49\u6808\uff0c\u5c06\u8fb9\u7f18\u6307\u6807\u3001\u65e5\u5fd7\u4e0e\u8ffd\u8e2a\u6570\u636e\u6c47\u805a\u5230\u96c6\u4e2d\u5206\u6790\u5e73\u53f0\uff0c\u4e3a\u81ea\u52a8\u5316\u63a7\u5236\u63d0\u4f9b\u5b9e\u65f6\u6570\u636e\u652f\u6491\u3002<\/li>\n<\/ul>\n<p>\u201c\u96f6\u63a5\u89e6\u8fd0\u7ef4\u201d\u5f3a\u8c03\u901a\u8fc7\u81ea\u52a8\u5316\u3001\u7b56\u7565\u9a71\u52a8\u4e0e CI\/CD \u6d41\u6c34\u7ebf\u5b9e\u73b0\u4ece\u90e8\u7f72\u5230\u8fd0\u7ef4\u7684\u6700\u5c0f\u4eba\u5de5\u4ecb\u5165\uff0c\u5173\u952e\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>Infra as Code\uff08Terraform\/Ansible\uff09\u4e0e GitOps<\/strong>\uff1a\u914d\u7f6e\u3001\u7b56\u7565\u4e0e\u8bc1\u4e66\u7b49\u8d44\u6e90\u7edf\u4e00\u4ee5\u4ee3\u7801\u7ba1\u7406\uff0c\u5e76\u901a\u8fc7\u53d8\u66f4\u5ba1\u8ba1\u89e6\u53d1\u81ea\u52a8\u5316\u4e0b\u53d1\u3002<\/li>\n<li><strong>\u7b56\u7565\u5f15\u64ce\u4e0e\u7b56\u7565\u5373\u4ee3\u7801<\/strong>\uff1a\u5982 Open Policy Agent\uff08OPA\uff09\uff0c\u5b9e\u73b0\u5b89\u5168\u3001\u8def\u7531\u3001\u7f13\u5b58\u7b56\u7565\u5728\u591a\u4e2a\u8282\u70b9\u4e0a\u7684\u4e00\u81f4\u6267\u884c\u3002<\/li>\n<li><strong>\u8bc1\u4e66\u4e0e\u5bc6\u94a5\u81ea\u52a8\u5316\uff08ACME\/Let&#8217;s Encrypt\uff09<\/strong>\uff1a\u81ea\u52a8\u66f4\u65b0 TLS \u8bc1\u4e66\u5e76\u5728\u8fb9\u7f18\u8282\u70b9\u65e0\u7f1d\u90e8\u7f72\uff0c\u914d\u5408 OCSP Stapling \u51cf\u5c11\u63e1\u624b\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u667a\u80fd\u6e05\u7406\u4e0e\u4e00\u81f4\u6027\u7b56\u7565<\/strong>\uff1a\u652f\u6301\u7ec6\u7c92\u5ea6\u7684\u7f13\u5b58\u5931\u6548\u3001\u5206\u5e03\u5f0f\u4e00\u81f4\u6027\uff08\u5982\u57fa\u4e8e\u7248\u672c\u53f7\u6216 ETag \u7684\u9a8c\u8bc1\uff09\u3001\u4ee5\u53ca stale-while-revalidate \u5b9e\u73b0\u5e73\u6ed1\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<h3>\u8fb9\u7f18\u4e0e\u539f\u70b9\u534f\u540c\uff1a\u7f13\u5b58\u4e00\u81f4\u6027\u4e0e\u56de\u6e90\u7b56\u7565<\/h3>\n<p>\u5728\u667a\u80fd\u8fb9\u7f18\u4e2d\uff0c\u8bbe\u8ba1\u5408\u7406\u7684\u56de\u6e90\u7b56\u7565\u81f3\u5173\u91cd\u8981\u3002\u5e38\u89c1\u7b56\u7565\u6709\uff1a<\/p>\n<ul>\n<li>\u57fa\u4e8e TTL\uff08Time To Live\uff09\u7684\u5f3a\u7f13\u5b58\u4e0e\u5f31\u7f13\u5b58\u7ec4\u5408\u3002<\/li>\n<li>Stale-while-revalidate\uff1a\u5728\u540e\u7aef\u66f4\u65b0\u671f\u95f4\u4ecd\u8fd4\u56de\u65e7\u5185\u5bb9\uff0c\u5f02\u6b65\u56de\u6e90\u5237\u65b0\u7f13\u5b58\u3002<\/li>\n<li>\u6761\u4ef6\u8bf7\u6c42\uff08If-Modified-Since \/ ETag\uff09\uff1a\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5168\u91cf\u56de\u6e90\u3002<\/li>\n<li>Origin Shield\/Regional Cache\uff1a\u5728\u591a\u4e2a POP \u4e4b\u95f4\u5f15\u5165\u4e2d\u95f4\u5c42\uff0c\u96c6\u4e2d\u56de\u6e90\u6d41\u91cf\uff0c\u964d\u4f4e\u6e90\u7ad9\u538b\u529b\u3002<\/li>\n<\/ul>\n<p>\u6b64\u5916\uff0c\u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c\u6216\u52a8\u6001\u5206\u7247\uff0c\u53ef\u4ee5\u5728\u8282\u70b9\u6269\u5bb9\u6216\u4e0b\u7ebf\u65f6\u5c3d\u91cf\u51cf\u5c11\u7f13\u5b58\u6296\u52a8\uff0c\u4fdd\u8bc1\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h2>\u5e94\u7528\u573a\u666f\uff1a\u8c01\u80fd\u4ece\u4e2d\u53d7\u76ca<\/h2>\n<p>\u667a\u80fd\u8fb9\u7f18\u4e0e\u96f6\u63a5\u89e6\u8fd0\u7ef4\u9002\u7528\u7684\u573a\u666f\u5e7f\u6cdb\uff1a<\/p>\n<ul>\n<li><strong>\u9759\u6001\u4e0e\u52a8\u6001\u6df7\u5408\u7ad9\u70b9<\/strong>\uff1a\u7535\u5546\u7ad9\u70b9\u3001CMS\u3001\u5927\u578b\u5a92\u8d44\u5206\u53d1\uff0c\u8fb9\u7f18\u53ef\u4ee5\u7f13\u5b58\u9759\u6001\u8d44\u6e90\u5e76\u5728\u8282\u70b9\u8fd0\u884c\u52a8\u6001\u6e32\u67d3\u903b\u8f91\uff0c\u964d\u4f4e\u56de\u6e90\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u5168\u7403\u5316\u4e1a\u52a1<\/strong>\uff1a\u5f53\u4e1a\u52a1\u9762\u5411\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u3001\u5317\u7f8e\u7b49\u5730\u533a\u65f6\uff0c\u667a\u80fd\u8def\u7531\u53ef\u5c06\u7528\u6237\u8bf7\u6c42\u5bfc\u5411\u6700\u8fd1\u6216\u5ef6\u8fdf\u6700\u4f18\u7684\u8282\u70b9\uff0c\u914d\u5408\u591a\u4e2a\u673a\u623f\uff08\u5982\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\uff09\u8fdb\u884c\u591a\u6e90\u5197\u4f59\u3002<\/li>\n<li><strong>\u5b9e\u65f6\u4ea4\u4e92\u4e0e\u4f4e\u5ef6\u8fdf\u5e94\u7528<\/strong>\uff1a\u6e38\u620f\u3001\u5b9e\u65f6\u63a8\u6d41\u6216 API \u7f51\u5173\uff0c\u901a\u8fc7\u8fb9\u7f18\u8ba1\u7b97\u8fdb\u884c\u9274\u6743\u3001\u901f\u7387\u9650\u5236\u548c\u521d\u6b65\u805a\u5408\uff0c\u51cf\u5c11\u8de8\u6d0b\u5f80\u8fd4\u3002<\/li>\n<li><strong>\u5408\u89c4\u4e0e\u6570\u636e\u4e3b\u6743<\/strong>\uff1a\u901a\u8fc7\u8fb9\u7f18\u8282\u70b9\u5728\u672c\u5730\u8fdb\u884c\u5904\u7406\u5e76\u9009\u62e9\u6027\u56de\u4f20\u8131\u654f\u6570\u636e\uff0c\u6ee1\u8db3\u4e0d\u540c\u5730\u57df\u7684\u5408\u89c4\u8981\u6c42\u3002<\/li>\n<\/ul>\n<h3>\u5b89\u5168\u4e0e\u6297DDoS<\/h3>\n<p>\u5728\u8fb9\u7f18\u90e8\u7f72 WAF\u3001\u901f\u7387\u9650\u5236\u3001Bot \u68c0\u6d4b\u4e0e\u7f51\u7edc\u5c42\u8fc7\u6ee4\u53ef\u4ee5\u5728\u6e90\u7ad9\u4e4b\u524d\u62e6\u622a\u5927\u91cf\u6076\u610f\u6d41\u91cf\u3002\u7ed3\u5408\u81ea\u52a8\u5316\u7b56\u7565\uff08\u4f8b\u5982\u5728\u68c0\u6d4b\u5230\u6d41\u91cf\u6fc0\u589e\u65f6\u81ea\u52a8\u5207\u6362\u5230\u66f4\u4e25\u683c\u7684 ACL \u6216\u542f\u52a8\u4e34\u65f6\u9ed1\u6d1e\u7b56\u7565\uff09\uff0c\u5b9e\u73b0\u5feb\u901f\u54cd\u5e94\u800c\u65e0\u9700\u4eba\u5de5\u5e72\u9884\u3002<\/p>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\uff1a\u4f20\u7edfCDN vs \u667a\u80fd\u8fb9\u7f18 + \u96f6\u63a5\u89e6\u8fd0\u7ef4<\/h2>\n<ul>\n<li><strong>\u90e8\u7f72\u901f\u5ea6<\/strong>\uff1a\u4f20\u7edf CDN \u4f9d\u8d56\u4eba\u5de5\u914d\u7f6e\u4e0e\u5de5\u5355\uff0c\u53d8\u66f4\u5468\u671f\u957f\uff1b\u667a\u80fd\u8fb9\u7f18\u914d\u5408 CI\/CD \u53ef\u5728\u6570\u5206\u949f\u5185\u5b8c\u6210\u5168\u7f51\u7b56\u7565\u4e0b\u53d1\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027<\/strong>\uff1a\u8fb9\u7f18\u8ba1\u7b97\u652f\u6301\u5f39\u6027\u6267\u884c\u73af\u5883\uff0c\u65e0\u9700\u6bcf\u6b21\u4e0a\u7ebf\u90fd\u6269\u5145\u6e90\u7ad9\u8d44\u6e90\u3002<\/li>\n<li><strong>\u53ef\u9760\u6027<\/strong>\uff1a\u901a\u8fc7\u591a\u5730\u57df\u3001Anycast \u4e0e Origin Shield\uff0c\u964d\u4f4e\u5355\u70b9\u6545\u969c\u5f71\u54cd\uff0c\u6bd4\u4ec5\u9760\u5355\u673a\u6216\u5355\u673a\u623f\uff08\u5982\u5355\u4e00\u9999\u6e2f\u670d\u52a1\u5668\uff09\u66f4\u7a33\u5065\u3002<\/li>\n<li><strong>\u6210\u672c\u4f18\u5316<\/strong>\uff1a\u667a\u80fd\u8def\u7531\u4e0e\u7f13\u5b58\u547d\u4e2d\u7387\u4f18\u5316\uff0c\u51cf\u5c11\u56de\u6e90\u6d41\u91cf\uff0c\u964d\u4f4e\u6d77\u5916\u670d\u52a1\u5668\u5e26\u5bbd\u4e0e\u6e90\u7ad9\u8d44\u6e90\u6210\u672c\u3002<\/li>\n<li><strong>\u8fd0\u7ef4\u8d1f\u62c5<\/strong>\uff1a\u96f6\u63a5\u89e6\u8fd0\u7ef4\u901a\u8fc7\u81ea\u52a8\u5316\u5de5\u5355\u3001\u76d1\u63a7\u544a\u8b66\u4e0e\u81ea\u6108\u673a\u5236\uff0c\u663e\u8457\u964d\u4f4e\u4eba\u5de5\u503c\u5b88\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d\u5efa\u8bae\uff1a\u5982\u4f55\u8bc4\u4f30\u4e0e\u9009\u62e9\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u5728\u4e3a\u5168\u7403\u4e1a\u52a1\u9009\u62e9 CDN \u4e0e\u8fb9\u7f18\u89e3\u51b3\u65b9\u6848\u65f6\uff0c\u5e94\u4ece\u4ee5\u4e0b\u7ef4\u5ea6\u8bc4\u4f30\uff1a<\/p>\n<h3>\u8986\u76d6\u4e0e\u7f51\u7edc\u8d28\u91cf<\/h3>\n<ul>\n<li>\u8003\u5bdf POP \u8986\u76d6\u4f4d\u7f6e\u662f\u5426\u5305\u542b\u76ee\u6807\u5e02\u573a\uff08\u4f8b\u5982\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u3001\u5317\u7f8e\uff09\u3002<\/li>\n<li>\u6d4b\u8bd5\u7f51\u7edc\u5ef6\u8fdf\u4e0e\u4e22\u5305\uff0c\u5173\u6ce8\u5230\u6838\u5fc3\u673a\u623f\uff08\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\uff09\u7684\u5b9e\u9645\u8def\u5f84\u3002<\/li>\n<\/ul>\n<h3>\u529f\u80fd\u4e0e\u5f00\u653e\u6027<\/h3>\n<ul>\n<li>\u662f\u5426\u652f\u6301\u8fb9\u7f18\u51fd\u6570\u3001KV \u5b58\u50a8\u3001\u6d41\u91cf\u811a\u672c\u4e0e\u81ea\u5b9a\u4e49\u6a21\u5757\uff0c\u4fbf\u4e8e\u5b9e\u73b0\u4e1a\u52a1\u903b\u8f91\u4e0b\u6c89\u3002<\/li>\n<li>\u662f\u5426\u63d0\u4f9b\u4e30\u5bcc\u7684 API \u4e0e Infra as Code 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