{"id":209811,"date":"2025-10-23T23:40:21","date_gmt":"2025-10-23T15:40:21","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209811\/"},"modified":"2025-10-23T23:40:22","modified_gmt":"2025-10-23T15:40:22","slug":"cdn-141","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209811\/","title":{"rendered":"\u6df1\u5ea6\u5b9e\u6d4b\uff1a\u4e3b\u6d41CDN\u670d\u52a1\u5546\u53ef\u9760\u6027\u5927\u6bd4\u62fc"},"content":{"rendered":"<p>\u5728\u5168\u7403\u4e92\u8054\u7f51\u6d41\u91cf\u4e0d\u65ad\u589e\u957f\u7684\u4eca\u5929\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u5df2\u6210\u4e3a\u63d0\u5347\u7f51\u7ad9\u6027\u80fd\u4e0e\u53ef\u9760\u6027\u7684\u5fc5\u5907\u7ec4\u4ef6\u3002\u5c24\u5176\u5bf9\u8fd0\u8425\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u63d0\u4f9b\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS 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Purge\uff09\uff1a<\/strong>\u9891\u7e41\u66f4\u65b0\u7684\u7ad9\u70b9\u9700\u8981\u4f4e\u5ef6\u8fdf\u7684\u6e05\u7406\u63a5\u53e3\u4e0e\u652f\u6301\u57fa\u4e8e\u8def\u5f84\u3001\u6807\u7b7e\u7684\u7cbe\u786e\u5931\u6548\u3002<\/li>\n<li><strong>TLS\/HTTP\/2\/QUIC \u652f\u6301\uff1a<\/strong>\u65b0\u534f\u8bae\u80fd\u663e\u8457\u63d0\u5347\u79fb\u52a8\u7aef\u4e0e\u9ad8\u5e76\u53d1\u573a\u666f\u7684\u6027\u80fd\uff0c\u540c\u65f6\u5f71\u54cd\u52a0\u5bc6\u63e1\u624b\u7684\u7a33\u5b9a\u6027\u3002<\/li>\n<li><strong>Origin Shield \u4e0e\u591a\u6d3b\u914d\u7f6e\uff1a<\/strong>\u5f53\u8fb9\u7f18\u8282\u70b9\u9047\u5230\u7f13\u5b58\u672a\u547d\u4e2d\u65f6\uff0cOrigin Shield 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Ratio\uff09\uff1a<\/strong>\u9ad8\u547d\u4e2d\u7387\u610f\u5473\u7740\u66f4\u5c11\u7684\u56de\u6e90\u6d41\u91cf\u4e0e\u66f4\u4f4e\u7684\u539f\u70b9\u538b\u529b\u3002<\/li>\n<li><strong>\u6545\u969c\u6062\u590d\u65f6\u95f4\uff08MTTR\uff09\uff1a<\/strong>\u4ece\u4e8b\u4ef6\u53d1\u751f\u5230\u6062\u590d\u670d\u52a1\u7684\u5e73\u5747\u8017\u65f6\u3002<\/li>\n<li><strong>\u5168\u7403\u4e0e\u533a\u57df\u5ef6\u8fdf\u5206\u5e03\uff1a<\/strong>\u9488\u5bf9\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u4ee5\u53ca\u6b27\u7f8e\u8282\u70b9\u7684\u5ef6\u8fdf\u5dee\u5f02\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u6d4b\u73af\u5883\u4e0e\u65b9\u6cd5\u8bba<\/h2>\n<p>\u4e3a\u4e86\u505a\u5230\u516c\u5e73\u4e0e\u53ef\u590d\u73b0\uff0c\u6211\u4eec\u6784\u5efa\u4e86\u7edf\u4e00\u7684\u6d4b\u8bd5\u5e73\u53f0\uff1a<\/p>\n<ul>\n<li>\u5728\u9999\u6e2f\u670d\u52a1\u5668\u548c\u7f8e\u56fd\u670d\u52a1\u5668\u4e0a\u5404\u90e8\u7f72\u4e00\u4e2a\u76f8\u540c\u7684\u9759\u6001\u7ad9\u70b9\u4e0e\u4e00\u4e2a\u52a8\u6001 API\uff0c\u5e76\u5206\u522b\u914d\u7f6e\u4e3a\u4e0d\u540c CDN \u7684\u540e\u7aef Origin\u3002<\/li>\n<li>\u4f7f\u7528\u5408\u6210\u76d1\u6d4b\uff08\u6bcf\u5206\u949f\u8bf7\u6c42\uff09\u3001RUM\uff08\u6d4f\u89c8\u5668\u7aef\u91c7\u6837\uff09\u4e0e\u5206\u5e03\u5f0f\u8d1f\u8f7d\u751f\u6210\u5668\u6a21\u62df\u771f\u5b9e\u6d41\u91cf\uff0c\u8986\u76d6\u4e9a\u6d32\uff08\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\uff09\u4e0e\u5317\u7f8e\u8282\u70b9\u3002<\/li>\n<li>\u6d4b\u8bd5\u5468\u671f\u8986\u76d6 30 \u5929\uff0c\u5305\u542b\u9ad8\u5e76\u53d1\u51b2\u51fb\u6d4b\u8bd5\u3001\u8282\u70b9\u6545\u969c\u6a21\u62df\uff08\u4e0b\u7ebf\u90e8\u5206 PoP\uff09\u4e0e\u5927\u6587\u4ef6\u56de\u6e90\u6d41\u91cf\u6d4b\u8bd5\u3002<\/li>\n<li>\u8bb0\u5f55\u5e76\u5bf9\u6bd4 TTFB\u3001PLT\uff08\u9875\u9762\u52a0\u8f7d\u65f6\u95f4\uff09\u3001\u7f13\u5b58\u547d\u4e2d\u7387\u3001\u56de\u6e90\u5e26\u5bbd\u4e0e\u9519\u8bef\u7387\uff084xx\/5xx\uff09\u3002<\/li>\n<\/ul>\n<h2>\u4e3b\u6d41\u670d\u52a1\u5546\u5728\u53ef\u9760\u6027\u5c42\u9762\u7684\u8868\u73b0\u5bf9\u6bd4<\/h2>\n<p>\u4ee5\u4e0b\u4e3a\u5b9e\u6d4b\u4e2d\u5e38\u89c1\u7684\u51e0\u7c7b\u670d\u52a1\u5546\u8868\u73b0\u4e0e\u6280\u672f\u4fa7\u91cd\u70b9\uff1a<\/p>\n<h3>\u5927\u578b\u4e91\u5382\u5546\u81ea\u7814 CDN\uff08\u4f8b\u5982\u4e0e\u5927\u578b\u516c\u6709\u4e91\u7ed1\u5b9a\u7684 CDN\uff09<\/h3>\n<ul>\n<li>\u4f18\u70b9\uff1aPoP \u8986\u76d6\u5e7f\u3001\u4e0e\u4e91\u539f\u751f\u4ea7\u54c1\u96c6\u6210\u7d27\u5bc6\uff08\u8d1f\u8f7d\u5747\u8861\u3001WAF\u3001\u5bf9\u8c61\u5b58\u50a8\u8054\u52a8\uff09\uff0c\u5bf9\u4e8e\u8fd0\u884c\u7f8e\u56fdVPS \u4e0e\u6d77\u5916\u670d\u52a1\u5668 \u7684\u4f01\u4e1a\u7528\u6237\u66f4\u5bb9\u6613\u5b9e\u73b0\u7edf\u4e00\u8fd0\u7ef4\u3002<\/li>\n<li>\u5c40\u9650\uff1aAnycast \u8def\u7531\u6709\u65f6\u5728\u533a\u57df\u95f4\u8868\u73b0\u4e0d\u5747\uff1b\u5bf9\u7f13\u5b58\u7b56\u7565\u7684\u7ec6\u7c92\u5ea6\u63a7\u5236\u76f8\u5bf9\u6709\u9650\u3002<\/li>\n<li>\u5b9e\u6d4b\u70b9\uff1a\u5728\u5317\u7f8e\u4e0e\u6b27\u6d32\u8868\u73b0\u6781\u4f73\uff0c\u4e9a\u6d32\u90e8\u5206\u533a\u57df\uff08\u5982\u97e9\u56fd\u3001\u65e5\u672c\uff09\u9700\u9009\u62e9\u63a5\u8fd1 PoP \u7684\u8282\u70b9\u4ee5\u964d\u4f4e TTFB\u3002<\/li>\n<\/ul>\n<h3>\u4e13\u6ce8\u4e8e\u8fb9\u7f18\u52a0\u901f\u7684 CDN\uff08\u5f3a\u8c03 DDoS \u9632\u62a4\u4e0e\u8fb9\u7f18\u8ba1\u7b97\uff09<\/h3>\n<ul>\n<li>\u4f18\u70b9\uff1a\u51fa\u8272\u7684\u6297\u653b\u51fb\u80fd\u529b\u548c\u8fb9\u7f18\u8ba1\u7b97\u80fd\u529b\uff0c\u9002\u5408\u5bf9\u5b89\u5168\u6027\u4e0e\u52a8\u6001\u8fb9\u7f18\u903b\u8f91\uff08Edge Functions\uff09\u6709\u9700\u6c42\u7684\u5f00\u53d1\u8005\u3002<\/li>\n<li>\u5c40\u9650\uff1a\u5c0f\u578b\u670d\u52a1\u5546\u5728\u67d0\u4e9b\u56fd\u5bb6\/\u5730\u533a\u7684 PoP \u8986\u76d6\u53ef\u80fd\u4e0d\u8db3\uff0c\u5bfc\u81f4\u9999\u6e2f\u6216\u65b0\u52a0\u5761\u8bbf\u95ee\u4f53\u9a8c\u4e0d\u5982\u672c\u5730\u5316\u5f3a\u7684 CDN\u3002<\/li>\n<li>\u5b9e\u6d4b\u70b9\uff1a\u5728\u5728\u7ebf\u6e38\u620f\u3001API \u52a0\u901f\u4e0e\u52a8\u6001\u7ad9\u70b9\u4e0a\u80fd\u663e\u8457\u964d\u4f4e\u540e\u7aef\u538b\u529b\uff0c\u4f46\u7f13\u5b58\u547d\u4e2d\u7387\u53d6\u51b3\u4e8e\u7f13\u5b58\u7b56\u7565\u914d\u7f6e\u3002<\/li>\n<\/ul>\n<h3>\u533a\u57df\u578b CDN\uff08\u5982\u4e9a\u592a\/\u4e1c\u5357\u4e9a\u4e13\u6ce8\u7684\u670d\u52a1\u5546\uff09<\/h3>\n<ul>\n<li>\u4f18\u70b9\uff1a\u5728\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u4e0e\u65b0\u52a0\u5761\u7b49\u5730\u533a\u6709\u66f4\u5bc6\u96c6\u7684 PoP 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