{"id":209965,"date":"2025-10-24T02:05:13","date_gmt":"2025-10-23T18:05:13","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209965\/"},"modified":"2025-10-24T02:05:14","modified_gmt":"2025-10-23T18:05:14","slug":"cdn-216","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209965\/","title":{"rendered":"\u5fc5\u5907\u6307\u5357\uff1a\u6700\u503c\u5f97\u90e8\u7f72\u7684CDN\u8bbf\u95ee\u901f\u5ea6\u76d1\u63a7\u5de5\u5177\u63a8\u8350"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u5185\u5bb9\u5206\u53d1\u548c\u670d\u52a1\u4ea4\u4ed8\u7684\u4eca\u5929\uff0c\u90e8\u7f72CDN\u5df2\u7ecf\u6210\u4e3a\u63d0\u9ad8\u7f51\u7ad9\u8bbf\u95ee\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u7684\u6807\u51c6\u505a\u6cd5\u3002\u7136\u800c\uff0cCDN\u8282\u70b9\u7684\u6027\u80fd\u4f1a\u53d7\u5230\u7f51\u7edc\u3001ISP\u8def\u7531\u3001\u7f13\u5b58\u7b56\u7565\u548c\u5730\u7406\u4f4d\u7f6e\u7b49\u591a\u91cd\u56e0\u7d20\u5f71\u54cd\u3002\u5bf9\u4e8e\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u800c\u8a00\uff0c<strong>\u6301\u7eed\u3001\u7cbe\u786e\u7684CDN\u8bbf\u95ee\u901f\u5ea6\u76d1\u63a7<\/strong>\u662f\u4fdd\u969c\u7528\u6237\u4f53\u9a8c\u4e0e\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u7684\u5173\u952e\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u5e38\u89c1\u5de5\u5177\u3001\u5e94\u7528\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae\u7b49\u65b9\u9762\uff0c\u8be6\u7ec6\u4ecb\u7ecd\u6700\u503c\u5f97\u90e8\u7f72\u7684CDN\u76d1\u63a7\u5de5\u5177\u4e0e\u6280\u672f\u5b9e\u8df5\u3002<\/p>\n<h2>CDN\u6027\u80fd\u76d1\u63a7\u7684\u57fa\u672c\u539f\u7406\u4e0e\u5173\u952e\u6307\u6807<\/h2>\n<p>\u8981\u6709\u6548\u76d1\u63a7CDN\uff0c\u9700\u8981\u7406\u89e3\u5176\u4e24\u7c7b\u4e3b\u6d41\u76d1\u6d4b\u65b9\u6cd5\uff1a<strong>\u4e3b\u52a8\u5408\u6210\u76d1\u6d4b\uff08Synthetic\/Active\uff09<\/strong>\u4e0e<strong>\u88ab\u52a8\u771f\u5b9e\u7528\u6237\u76d1\u6d4b\uff08RUM\uff09<\/strong>\u3002\u4e3b\u52a8\u76d1\u6d4b\u7531\u5916\u90e8\u63a2\u9488\uff08\u6216\u5408\u6210\u811a\u672c\uff09\u5b9a\u671f\u53d1\u8d77\u8bf7\u6c42\uff0c\u80fd\u6a21\u62df\u4e0d\u540c\u5730\u533a\/\u8fd0\u8425\u5546\u7684\u8bbf\u95ee\u8def\u5f84\uff1bRUM\u5219\u901a\u8fc7\u5728\u7ec8\u7aef\u9875\u9762\u6ce8\u5165JS\u6765\u6536\u96c6\u771f\u5b9e\u7528\u6237\u7684\u52a0\u8f7d\u6570\u636e\uff0c\u53cd\u6620\u771f\u5b9e\u4e16\u754c\u8868\u73b0\u3002<\/p>\n<h3>\u6838\u5fc3\u76d1\u63a7\u6307\u6807<\/h3>\n<ul>\n<li><strong>DNS\u89e3\u6790\u65f6\u95f4<\/strong>\uff1a\u5f71\u54cd\u9996\u5b57\u8282\u5230\u8fbe\u7684\u524d\u7f6e\u73af\u8282\uff0c\u5c24\u5176\u5728\u8de8\u5883\u8bbf\u95ee\uff08\u5982\u9999\u6e2f\u670d\u52a1\u5668\u81f3\u7f8e\u56fd\uff09\u7684\u573a\u666f\u4e2d\u654f\u611f\u3002<\/li>\n<li><strong>TCP\u63e1\u624b\u4e0eTLS\u63e1\u624b\u65f6\u95f4<\/strong>\uff1a\u8861\u91cf\u8fde\u63a5\u5efa\u7acb\u4e0e\u5b89\u5168\u534f\u5546\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09<\/strong>\uff1a\u53cd\u6620\u7f13\u5b58\u547d\u4e2d\u4e0e\u6e90\u7ad9\u54cd\u5e94\u6548\u7387\u3002<\/li>\n<li><strong>\u4e0b\u8f7d\u541e\u5410\u4e0e\u8d44\u6e90\u52a0\u8f7d\u65f6\u95f4<\/strong>\uff1a\u8861\u91cf\u5927\u6587\u4ef6\u6216\u89c6\u9891\u5206\u53d1\u8d28\u91cf\u3002<\/li>\n<li><strong>\u7f13\u5b58\u547d\u4e2d\u7387<\/strong>\uff08X-Cache \/ X-Cache-Hit \u7b49\u54cd\u5e94\u5934\uff09\uff1a\u76f4\u63a5\u53cd\u6620CDN\u914d\u7f6e\u6548\u679c\u3002<\/li>\n<li><strong>\u4e22\u5305\u7387\u4e0e\u6296\u52a8<\/strong>\uff1a\u5bf9\u5b9e\u65f6\u5e94\u7528\uff08WebRTC\u3001\u76f4\u64ad\uff09\u5c24\u4e3a\u5173\u952e\u3002<\/li>\n<li><strong>\u53ef\u7528\u6027\/\u53ef\u8fbe\u6027<\/strong>\uff1a\u8282\u70b9\u662f\u5426\u5728\u7ebf\u3001\u7f51\u7edc\u662f\u5426\u901a\u7545\u3002<\/li>\n<li><strong>BGP\u8def\u7531\u53d8\u5316\u4e0eAnycast\u5065\u5eb7<\/strong>\uff1a\u7528\u4e8e\u5206\u6790\u7531\u8def\u7531\u7b56\u7565\u5f15\u53d1\u7684\u6027\u80fd\u6ce2\u52a8\u3002<\/li>\n<\/ul>\n<h2>\u4e3b\u6d41CDN\u76d1\u63a7\u5de5\u5177\u4e0e\u65b9\u6848\u63a8\u8350\uff08\u542b\u6280\u672f\u7ec6\u8282\uff09<\/h2>\n<p>\u4e0b\u9762\u5217\u51fa\u503c\u5f97\u90e8\u7f72\u7684\u76d1\u63a7\u5de5\u5177\uff0c\u5305\u542b\u5546\u4e1a\u5e73\u53f0\u4e0e\u5f00\u6e90\u65b9\u6848\uff0c\u5e76\u7ed9\u51fa\u6280\u672f\u90e8\u7f72\u8981\u70b9\u3002<\/p>\n<h3>\u5546\u4e1a\u5408\u6210\u4e0eRUM\u5e73\u53f0<\/h3>\n<ul>\n<li><strong>Catchpoint \/ ThousandEyes<\/strong>\uff1a\u5168\u7403\u63a2\u9488\u8986\u76d6\u5e7f\uff0c\u652f\u6301\u7f51\u7edc\u5c42\uff08BGP\u3001\u8def\u7531\uff09\u3001\u5e94\u7528\u5c42\uff08HTTP\/TCP\/TLS\uff09\u4e0eDNS\u76d1\u6d4b\u3002\u9002\u5408\u8de8\u5730\u533a\uff08\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\uff09\u7684\u5927\u578b\u4f01\u4e1a\u3002\u53ef\u4ee5\u914d\u7f6eHTTP\u811a\u672c\u9a8c\u8bc1Cache-Control\u3001\u67e5\u770bX-Cache\u5934\uff1b\u652f\u6301\u591a\u70b9\u5e76\u53d1\u6d4b\u8bd5\u4e0e\u57fa\u7ebf\u62a5\u8b66\u3002<\/li>\n<li><strong>Datadog Synthetics + RUM<\/strong>\uff1a\u4e00\u4f53\u5316\u76d1\u63a7\uff0c\u4fbf\u4e8e\u5c06\u5408\u6210\u6d4b\u8bd5\u4e0e\u540e\u7aefAPM\u5173\u8054\u3002\u652f\u6301HTTP\u65ad\u8a00\u3001SAML\u767b\u5f55\u811a\u672c\u3001\u89c6\u9891\u56de\u653e\u8bf7\u6c42\u5e8f\u5217\u3002\u7528\u6237\u53ef\u5c06\u5408\u6210\u7ed3\u679c\u4e0ePrometheus\u6307\u6807\u3001\u65e5\u5fd7\u548cTracing\u7edf\u4e00\u89c6\u56fe\u3002<\/li>\n<li><strong>New Relic Synthetics &amp; Browser<\/strong>\uff1a\u5f3a\u8c03\u524d\u7aef\u6027\u80fd\uff0c\u9002\u5408\u5e0c\u671b\u5c06\u771f\u5b9e\u7528\u6237\u76d1\u63a7\u4e0e\u5408\u6210\u6d4b\u8bd5\u7ed3\u5408\u7684\u56e2\u961f\u3002\u53ef\u914d\u7f6e\u5730\u7406\u5206\u5e03\u7684\u63a2\u9488\uff0c\u6309\u56fd\u5bb6\/\u57ce\u5e02\u7ec6\u5206\u6027\u80fd\u62a5\u544a\u3002<\/li>\n<li><strong>Pingdom \/ Uptrends<\/strong>\uff1a\u6210\u672c\u76f8\u5bf9\u53cb\u597d\uff0c\u9002\u5408\u4e2d\u5c0f\u4f01\u4e1a\u505a\u7ad9\u70b9\u53ef\u7528\u6027\u548c\u54cd\u5e94\u65f6\u95f4\u76d1\u63a7\u3002\u652f\u6301\u591a\u70b9\u68c0\u6d4b\u3001API\u544a\u8b66\u3001\u96c6\u6210Slack\/\u90ae\u7bb1\u3002<\/li>\n<\/ul>\n<h3>\u4e13\u6ce8\u4e8e\u7f51\u7edc\u4e0e\u8def\u7531\u7684\u5de5\u5177<\/h3>\n<ul>\n<li><strong>ThousandEyes<\/strong>\uff08\u518d\u6b21\u5f3a\u8c03\u5176\u7f51\u7edc\u5c42\u80fd\u529b\uff09\uff1a\u53ef\u8ffd\u8e2a\u4ece\u7528\u6237\u5230CDN\u8282\u70b9\u7684\u6bcf\u4e00\u8df3\u5ef6\u8fdf\uff0c\u89e3\u6790ISP\u7ea7\u522b\u95ee\u9898\uff0c\u9002\u5408\u8bca\u65ad\u8de8\u5883\u56de\u6e90\u5230\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u6d77\u5916\u670d\u52a1\u5668\u65f6\u7684\u8def\u5f84\u95ee\u9898\u3002<\/li>\n<li><strong>Kentik<\/strong>\uff1a\u6d41\u91cf\u548cBGP\u5206\u6790\u5f3a\u9879\uff0c\u80fd\u5e2e\u52a9\u8bc6\u522b\u56e0\u8def\u7531\u7b56\u7565\u5bfc\u81f4\u7684\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h3>\u5f00\u6e90\u4e0e\u81ea\u5efa\u76d1\u63a7\u6808<\/h3>\n<ul>\n<li><strong>Prometheus + Blackbox Exporter + Grafana<\/strong>\uff1a\u53ef\u81ea\u5efa\u5408\u6210\u63a2\u9488\u3002blackbox_exporter\u652f\u6301HTTP\u3001HTTPS\u3001ICMP\u3001TCP\u7b49\u63a2\u6d4b\uff1b\u7ed3\u5408Prometheus\u53ef\u5b58\u50a8\u65f6\u5e8f\u6570\u636e\u5e76\u505a\u544a\u8b66\u3002\u793a\u4f8bblackbox.yml\u914d\u7f6e\u7247\u6bb5\uff1a<br \/>\n<code>modules:<br \/>\n  http_2xx:<br \/>\n    prober: http<br \/>\n    timeout: 5s<br \/>\n    http:<\/code>\uff08\u5728Classic Editor\u4e2d\u5c06\u7528\u666e\u901a\u6587\u672c\u5c55\u793a\u5373\u53ef\uff09<\/li>\n<li><strong>Grafana<\/strong>\uff1a\u521b\u5efa\u81ea\u5b9a\u4e49\u4eea\u8868\u76d8\u5c55\u793aTTFB\u3001DNS\u3001TLS\u65f6\u95f4\u53ca\u7f13\u5b58\u547d\u4e2d\u7387\u3002\u53ef\u901a\u8fc7Alertmanager\u914d\u7f6e\u9608\u503c\u548c\u6291\u5236\u7b56\u7565\u3002<\/li>\n<li><strong>Prometheus + Blackbox\u5b9e\u8df5\u8981\u70b9<\/strong>\uff1a\u5728\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\u3001\u4e1c\u4eac\/\u9996\u5c14\/\u65b0\u52a0\u5761\u7684\u8f7b\u91cf\u63a2\u9488\uff08\u53ef\u90e8\u7f72\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u6d77\u5916VPS\uff09\u5206\u5e03\u5f0f\u90e8\u7f72\uff0c\u4fdd\u8bc1\u8de8\u5730\u533a\u8986\u76d6\u3002\u63a2\u9488\u9891\u7387\u5efa\u8bae\uff1aHTTP\u5185\u9875\u68c0\u6d4b1\u20135\u5206\u949f\uff0cICMP\/\u7aef\u53e3\u68c0\u6d4b30\u201360\u79d2\u3002<\/li>\n<li><strong>RUM\uff08\u5982Booster\u6216\u81ea\u5efabeacon\uff09<\/strong>\uff1a\u5728\u9875\u9762\u6ce8\u5165\u91c7\u96c6\u811a\u672c\uff0c\u6536\u96c6\u771f\u5b9e\u7528\u6237\u7684DNS\/TCP\/TLS\/\u8d44\u6e90\u52a0\u8f7d\u65f6\u95f4\uff0c\u5e76\u6309ISP\/\u7701\u4efd\/\u57ce\u5e02\u5206\u7ec4\u5206\u6790\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u76d1\u63a7\u7b56\u7565<\/h2>\n<h3>1. 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