{"id":210404,"date":"2025-10-29T13:53:59","date_gmt":"2025-10-29T05:53:59","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210404\/"},"modified":"2025-10-29T13:54:00","modified_gmt":"2025-10-29T05:54:00","slug":"cdn%e8%be%b9%e7%bc%98%e8%8a%82%e7%82%b9%e8%b5%84%e6%ba%90%e6%99%ba%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210404\/","title":{"rendered":"CDN\u8fb9\u7f18\u8282\u70b9\u8d44\u6e90\u667a\u80fd\u5316\u7ba1\u7406\uff1a\u5b9e\u73b0\u6027\u80fd\u4e0e\u6210\u672c\u7684\u6700\u4f18\u5e73\u8861"},"content":{"rendered":"<p>\u968f\u7740\u4e92\u8054\u7f51\u6d41\u91cf\u6301\u7eed\u589e\u957f\u548c\u7528\u6237\u5bf9\u4f4e\u5ef6\u8fdf\u3001\u9ad8\u53ef\u7528\u6027\u7684\u8981\u6c42\u4e0d\u65ad\u63d0\u5347\uff0c\u4f20\u7edf\u7684\u4e2d\u5fc3\u5316\u5185\u5bb9\u5206\u53d1\u65b9\u5f0f\u5df2\u96be\u4ee5\u6ee1\u8db3\u73b0\u4ee3\u5e94\u7528\u9700\u6c42\u3002CDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u901a\u8fc7\u5728\u5168\u7403\u5e03\u5c40\u8fb9\u7f18\u8282\u70b9\uff0c\u5c06\u5185\u5bb9\u7f13\u5b58\u548c\u8ba1\u7b97\u63a8\u8fd1\u7ec8\u7aef\uff0c\u4ece\u800c\u663e\u8457\u6539\u5584\u6027\u80fd\u3002\u7136\u800c\uff0c\u8fb9\u7f18\u8282\u70b9\u7684\u8d44\u6e90\uff08\u5e26\u5bbd\u3001\u7f13\u5b58\u3001\u8ba1\u7b97\u3001\u5b58\u50a8\uff09\u5982\u4f55<strong>\u667a\u80fd\u5316\u7ba1\u7406<\/strong>\uff0c\u4ee5\u5728\u6027\u80fd\u4e0e\u6210\u672c\u4e4b\u95f4\u53d6\u5f97\u6700\u4f18\u5e73\u8861\uff0c\u6210\u4e3a\u7ad9\u957f\u3001\u4f01\u4e1a\u4e0e\u5f00\u53d1\u8005\u5fc5\u987b\u9762\u5bf9\u7684\u5173\u952e\u95ee\u9898\u3002<\/p>\n<h2>\u8fb9\u7f18\u8d44\u6e90\u667a\u80fd\u5316\u7ba1\u7406\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u8fb9\u7f18\u8d44\u6e90\u667a\u80fd\u5316\u7ba1\u7406\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u591a\u7ef4\u5ea6\u4f18\u5316\u95ee\u9898\uff0c\u6d89\u53ca\u6d41\u91cf\u9884\u6d4b\u3001\u7f13\u5b58\u7b56\u7565\u3001\u8282\u70b9\u8c03\u5ea6\u3001\u5e26\u5bbd\u63a7\u5236\u4e0e\u6210\u672c\u6a21\u578b\u8026\u5408\u3002\u6838\u5fc3\u7ec4\u4ef6\u901a\u5e38\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6d41\u91cf\u91c7\u96c6\u4e0e\u5206\u6790\u6a21\u5757\uff1a\u6536\u96c6\u8bf7\u6c42\u91cf\u3001\u5e26\u5bbd\u5360\u7528\u3001\u547d\u4e2d\u7387\u3001\u5ef6\u8fdf\u3001\u9519\u8bef\u7387\u7b49\u5b9e\u65f6\u6307\u6807\u3002<\/li>\n<li>\u9884\u6d4b\u4e0e\u51b3\u7b56\u5f15\u64ce\uff1a\u5229\u7528\u65f6\u95f4\u5e8f\u5217\u3001\u673a\u5668\u5b66\u4e60\uff08\u5982LSTM\u3001Prophet\uff09\u9884\u6d4b\u672a\u6765\u6d41\u91cf\u5cf0\u503c\u4e0e\u5730\u57df\u5206\u5e03\uff0c\u4e3a\u8d44\u6e90\u5206\u914d\u63d0\u4f9b\u524d\u77bb\u6027\u4f9d\u636e\u3002<\/li>\n<li>\u7b56\u7565\u6267\u884c\u5c42\uff1a\u6839\u636e\u51b3\u7b56\u4e0b\u53d1\u7f13\u5b58\u66ff\u6362\u7b56\u7565\u3001\u8def\u7531\u7b56\u7565\u3001\u81ea\u52a8\u6269\u7f29\u5bb9\u6307\u4ee4\u7b49\uff0c\u5e76\u5728\u8fb9\u7f18\u8282\u70b9\u4e0a\u6267\u884c\u3002<\/li>\n<li>\u6210\u672c\u4e0eSLA\u6a21\u578b\uff1a\u91cf\u5316\u4e0d\u540c\u8d44\u6e90\u914d\u7f6e\u4e0b\u7684\u6210\u672c\uff0c\u5e76\u5c06SLA\uff08\u5ef6\u8fdf\u3001\u53ef\u7528\u6027\uff09\u4f5c\u4e3a\u7ea6\u675f\u6761\u4ef6\u3002<\/li>\n<\/ul>\n<p>\u5b9e\u73b0\u667a\u80fd\u5316\u7ba1\u7406\u7684\u5173\u952e\u5728\u4e8e\u5efa\u7acb\u95ed\u73af\uff1a\u76d1\u63a7\u2192\u9884\u6d4b\u2192\u51b3\u7b56\u2192\u6267\u884c\u2192\u53cd\u9988\u3002\u901a\u8fc7\u4e0d\u65ad\u8fed\u4ee3\uff0c\u7cfb\u7edf\u80fd\u591f\u5728\u4e0d\u540c\u65f6\u6bb5\u3001\u4e0d\u540c\u5730\u533a\u5b9e\u73b0\u8fd1\u5b9e\u65f6\u7684\u8d44\u6e90\u6700\u4f18\u5206\u914d\u3002<\/p>\n<h3>\u7f13\u5b58\u4e0e\u5185\u5bb9\u5206\u7ea7\u7b56\u7565<\/h3>\n<p>\u8fb9\u7f18\u7f13\u5b58\u5e76\u4e0d\u662f\u8d8a\u591a\u8d8a\u597d\uff0c\u7f13\u5b58\u547d\u4e2d\u7387\u3001\u70ed\u5ea6\u5206\u5e03\u548c\u7f13\u5b58\u7f6e\u6362\u7b97\u6cd5\u51b3\u5b9a\u4e86\u5b9e\u9645\u6536\u76ca\u3002\u5e38\u89c1\u505a\u6cd5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u591a\u7ea7\u7f13\u5b58\uff08L1\u8fb9\u7f18\u3001L2\u533a\u57df\u3001L3\u4e2d\u5fc3\uff09\u7ed3\u5408\uff0c\u51b7\u6570\u636e\u56de\u6e90\u81f3\u66f4\u6df1\u5c42\u7ea7\uff0c\u51cf\u5c11\u6602\u8d35\u7684\u4e2d\u5fc3\u5e26\u5bbd\u3002<\/li>\n<li>\u5185\u5bb9\u5206\u7ea7\uff08\u70ed\u3001\u6e29\u3001\u51b7\uff09\uff1a\u70ed\u6570\u636e\u4f18\u5148\u653e\u5728\u6700\u9760\u8fd1\u7528\u6237\u7684\u8fb9\u7f18\u8282\u70b9\uff0c\u6e29\u6570\u636e\u53ef\u5206\u5e03\u4e8e\u533a\u57df\u8282\u70b9\uff0c\u51b7\u6570\u636e\u4ec5\u5728\u4e2d\u5fc3\u5b58\u50a8\u3002<\/li>\n<li>\u667a\u80fd\u7f6e\u6362\u7b97\u6cd5\uff1aLFU+LRU\u6df7\u5408\u3001\u57fa\u4e8e\u8bbf\u95ee\u9891\u7387\u7684\u6ed1\u52a8\u7a97\u53e3\u70ed\u5ea6\u8ba1\u7b97\u3001\u4ee5\u53ca\u8003\u8651\u5bf9\u8c61\u5927\u5c0f\u548cTTL\u7684\u6210\u672c\u654f\u611f\u66ff\u6362\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h3>\u6d41\u91cf\u8c03\u5ea6\u4e0e\u5c31\u8fd1\u8def\u7531<\/h3>\n<p>\u667a\u80fd\u6d41\u91cf\u8c03\u5ea6\u5305\u542b\u52a8\u6001DNS\u3001Anycast\u3001\u8fb9\u7f18\u8d1f\u8f7d\u5747\u8861\u4e0e\u5c31\u8fd1\u8def\u7531\u51b3\u7b56\u3002\u51b3\u7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vs 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