{"id":209573,"date":"2025-10-23T17:46:20","date_gmt":"2025-10-23T09:46:20","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209573\/"},"modified":"2025-10-23T17:46:21","modified_gmt":"2025-10-23T09:46:21","slug":"cdn-44","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209573\/","title":{"rendered":"CDN\u8282\u70b9\u6545\u969c\u5b9e\u6218\uff1a\u5feb\u901f\u5b9a\u4f4d\u4e0e\u9ad8\u6548\u6062\u590d\u65b9\u6848"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u4e1a\u52a1\u4e2d\uff0c\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\u627f\u62c5\u7740\u5c06\u9759\u6001\u4e0e\u52a8\u6001\u5185\u5bb9\u5feb\u901f\u3001\u5b89\u5168\u5730\u4f20\u9012\u7ed9\u7ec8\u7aef\u7528\u6237\u7684\u5173\u952e\u804c\u8d23\u3002\u7136\u800c\uff0c\u5f53CDN\u8282\u70b9\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u4f1a\u76f4\u63a5\u5f71\u54cd\u9875\u9762\u52a0\u8f7d\u3001\u7528\u6237\u4f53\u9a8c\u4e0e\u4e1a\u52a1\u6536\u5165\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u7cfb\u7edf\u6027\u5730\u4ecb\u7ecdCDN\u8282\u70b9\u6545\u969c\u7684\u539f\u7406\u5206\u6790\u3001\u6392\u67e5\u65b9\u6cd5\u4e0e\u9ad8\u6548\u6062\u590d\u65b9\u6848\uff0c\u5e2e\u52a9\u4f60\u5728\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u7b49\u591a\u5730\u57df\u90e8\u7f72\u73af\u5883\u4e0b\uff0c\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u5e76\u6062\u590d\u670d\u52a1\u3002<\/p>\n<h2>CDN\u8282\u70b9\u6545\u969c\u7684\u57fa\u672c\u539f\u7406\u4e0e\u5e38\u89c1\u7c7b\u578b<\/h2>\n<p>\u7406\u89e3\u6545\u969c\u7684\u53d1\u751f\u673a\u7406\u662f\u5feb\u901f\u5b9a\u4f4d\u7684\u524d\u63d0\u3002CDN\u8282\u70b9\u6545\u969c\u901a\u5e38\u53ef\u5f52\u4e3a\u4ee5\u4e0b\u51e0\u7c7b\uff1a<\/p>\n<ul>\n<li><strong>\u7f51\u7edc\u8fde\u901a\u6027\u6545\u969c\uff1a<\/strong>\u5305\u62ec\u94fe\u8def\u4e2d\u65ad\u3001\u8def\u7531\u9ed1\u6d1e\u3001BGP\u6cc4\u6f0f\u6216\u4e22\u5305\u7387\u589e\u9ad8\u7b49\u3002<\/li>\n<li><strong>\u670d\u52a1\u5c42\u6545\u969c\uff1a<\/strong>\u7f13\u5b58\u670d\u52a1\uff08\u5982Varnish\u3001Nginx\u3001Apache\uff09\u5d29\u6e83\u3001\u914d\u7f6e\u9519\u8bef\u6216\u8fdb\u7a0b\u88abOOM\u6740\u6b7b\u3002<\/li>\n<li><strong>\u8d44\u6e90\u67af\u7aed\uff1a<\/strong>CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8I\/O\u6216\u7f51\u7edc\u5e26\u5bbd\u8017\u5c3d\uff0c\u5e38\u89c1\u4e8e\u7a81\u53d1\u6d41\u91cf\u6216DDoS\u653b\u51fb\u3002<\/li>\n<li><strong>\u914d\u7f6e\u6216\u53d1\u5e03\u9519\u8bef\uff1a<\/strong>\u65b0\u914d\u7f6e\u3001\u8bc1\u4e66\u66f4\u65b0\u6216\u4ee3\u7801\u53d1\u5e03\u5f15\u5165\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/li>\n<li><strong>\u4f9d\u8d56\u6545\u969c\uff1a<\/strong>\u56de\u6e90\uff08origin\uff09\u4e0d\u53ef\u7528\u3001\u6570\u636e\u5e93\u6216\u7b2c\u4e09\u65b9API\u5f02\u5e38\u5bfc\u81f4\u8fb9\u7f18\u8282\u70b9\u65e0\u6cd5\u6b63\u5e38\u54cd\u5e94\u3002<\/li>\n<\/ul>\n<h3>Anycast \u4e0e Unicast \u8282\u70b9\u6545\u969c\u5dee\u5f02<\/h3>\n<p>Anycast\u67b6\u6784\u5728\u5168\u7403\u591a\u70b9\u4f7f\u7528\u540c\u4e00IP\u8fdb\u884c\u8def\u7531\u5ba3\u544a\uff0c\u6545\u969c\u5f80\u5f80\u8868\u73b0\u4e3a\u6d41\u91cf\u88ab\u91cd\u8def\u7531\u5230\u5176\u4ed6\u8282\u70b9\uff0c\u8868\u73b0\u4e3a\u533a\u57df\u6027\u5ef6\u8fdf\u6216\u7a81\u589e\uff1b\u800cUnicast\uff08\u57fa\u4e8eDNS\u89e3\u6790\uff09\u6545\u969c\u66f4\u591a\u8868\u73b0\u4e3a\u67d0\u4e00\u5177\u4f53\u8282\u70b9\u4e0d\u53ef\u8fbe\u6216\u7279\u5b9a\u7528\u6237\u7fa4\u4f53\u7684\u89e3\u6790\u95ee\u9898\u3002\u9488\u5bf9\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\u7b49\u6df7\u5408\u90e8\u7f72\uff0c\u9700\u6839\u636e\u67b6\u6784\u5dee\u5f02\u91c7\u53d6\u4e0d\u540c\u6392\u67e5\u7b56\u7565\u3002<\/p>\n<h2>\u5feb\u901f\u5b9a\u4f4d\uff1a\u7cfb\u7edf\u5316\u6392\u67e5\u6d41\u7a0b<\/h2>\n<p>\u9762\u5bf9\u8282\u70b9\u6545\u969c\u65f6\uff0c\u5efa\u8bae\u91c7\u7528\u9636\u68af\u5316\u6392\u67e5\u6d41\u7a0b\uff0c\u4ece\u5916\u81f3\u5185\u3001\u4ece\u7f51\u7edc\u5230\u5e94\u7528\u9010\u5c42\u6392\u67e5\uff1a<\/p>\n<h3>1. \u5916\u90e8\u76d1\u63a7\u4e0e\u6545\u969c\u544a\u8b66\u6838\u5b9e<\/h3>\n<ul>\n<li>\u6838\u5bf9\u76d1\u63a7\u7cfb\u7edf\uff08Prometheus\u3001Grafana\u3001Datadog\u3001Pingdom\uff09\u7684\u544a\u8b66\uff1a\u5224\u65ad\u662f\u5426\u4e3a\u5168\u7403\u6027\u6545\u969c\u6216\u5c40\u90e8\u533a\u57df\u95ee\u9898\u3002<\/li>\n<li>\u68c0\u67e5\u5408\u89c4\u7684\u5408\u5e76\u544a\u8b66\uff08network\u3001http 5xx\u3001latency\u3001packet loss\uff09\u3002<\/li>\n<li>\u5feb\u901f\u8fd0\u884c\u5916\u90e8\u5408\u89c4\u68c0\u6d4b\uff1amtr\u3001traceroute\u3001ping\u3001curl &#8211;resolve\uff08\u6a21\u62dfDNS\u89e3\u6790\uff09\u6765\u9a8c\u8bc1\u8bbf\u95ee\u8def\u5f84\u3002<\/li>\n<\/ul>\n<h3>2. 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