{"id":210207,"date":"2025-10-24T08:34:56","date_gmt":"2025-10-24T00:34:56","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210207\/"},"modified":"2025-10-24T08:34:57","modified_gmt":"2025-10-24T00:34:57","slug":"%e4%bb%8e%e8%be%b9%e7%bc%98%e5%88%b0%e5%8d%8f%e8%ae%ae%ef%bc%9acdn%e5%bc%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210207\/","title":{"rendered":"\u4ece\u8fb9\u7f18\u5230\u534f\u8bae\uff1aCDN\u5f15\u9886\u79fb\u52a8\u4e92\u8054\u7f51\u52a0\u901f\u7684\u65b0\u65b9\u5411"},"content":{"rendered":"<p>\u79fb\u52a8\u4e92\u8054\u7f51\u7684\u666e\u53ca\u4f7f\u5f97\u7528\u6237\u5bf9\u7f51\u9875\u4e0e\u5e94\u7528\u7684\u8bbf\u95ee\u4f53\u9a8c\u8981\u6c42\u8d8a\u6765\u8d8a\u9ad8\u3002\u5c24\u5176\u5728\u8de8\u5883\u4e1a\u52a1\u573a\u666f\u4e0b\uff0c\u4ece\u9999\u6e2f\u5230\u65e5\u672c\u3001\u97e9\u56fd\u3001\u7f8e\u56fd\u4e43\u81f3\u65b0\u52a0\u5761\u7684\u8bbf\u95ee\uff0c\u7f51\u7edc\u6ce2\u52a8\u3001\u4e22\u5305\u548c\u957f\u5f80\u8fd4\u65f6\u5ef6\uff08RTT\uff09\u90fd\u4f1a\u663e\u8457\u5f71\u54cd\u4ea4\u4e92\u54cd\u5e94\u4e0e\u9875\u9762\u52a0\u8f7d\u901f\u5ea6\u3002\u8fd1\u51e0\u5e74\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u4e0d\u4ec5\u5728\u201c\u8fb9\u7f18\u201d\u5e03\u5c40\u4e0a\u4e0d\u65ad\u6df1\u5316\uff0c\u540c\u65f6\u5728\u4f20\u8f93\u534f\u8bae\u4e0e\u8fb9\u7f18\u8ba1\u7b97\u80fd\u529b\u4e0a\u6f14\u8fdb\uff0c\u6b63\u5728\u4ece\u4f20\u7edf\u7684\u9759\u6001\u7f13\u5b58\u670d\u52a1\u5411\u534f\u8bae\u4f18\u5316\u4e0e\u8fb9\u7f18\u667a\u80fd\u65b9\u5411\u8f6c\u53d8\uff0c\u6210\u4e3a\u79fb\u52a8\u4e92\u8054\u7f51\u52a0\u901f\u7684\u65b0\u5f15\u64ce\u3002<\/p>\n<h2>\u79fb\u52a8\u573a\u666f\u4e0b\u7684\u6027\u80fd\u6311\u6218\u4e0e\u9700\u6c42<\/h2>\n<p>\u79fb\u52a8\u7ec8\u7aef\uff08\u667a\u80fd\u624b\u673a\u3001\u5e73\u677f\uff09\u5728\u4e0d\u540c\u7f51\u7edc\u73af\u5883\u4e0b\u5b58\u5728\u660e\u663e\u5dee\u5f02\uff1a\u8702\u7a9d\u7f51\u7edc\u6296\u52a8\u66f4\u9891\u7e41\u3001\u4e0a\u884c\u4e0b\u884c\u5e26\u5bbd\u6ce2\u52a8\u5927\u3001\u79fb\u52a8\u5207\u6362\uff08\u5c0f\u533a\u5207\u6362\u3001\u57fa\u7ad9\u5207\u6362\uff09\u4f1a\u5e26\u6765\u4e22\u5305\u4e0e\u6296\u52a8\u3002\u6b64\u5916\uff0c\u73b0\u4ee3Web\u5e94\u7528\u4f9d\u8d56\u5927\u91cf\u5c0f\u8d44\u6e90\u4e0e\u52a8\u6001\u5185\u5bb9\uff0cTLS\u63e1\u624b\u3001\u591a\u6b21DNS\u89e3\u6790\u3001HTTP\/2\/1.1\u961f\u5934\u963b\u585e\u7b49\u95ee\u9898\u5728\u79fb\u52a8\u94fe\u8def\u4e0a\u88ab\u653e\u5927\u3002\u9488\u5bf9\u8fd9\u4e9b\u6311\u6218\uff0c\u7ad9\u957f\u3001\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u5173\u6ce8\u4ee5\u4e0b\u9700\u6c42\uff1a<\/p>\n<ul>\n<li>\u66f4\u4f4e\u7684\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\u4e0e\u9875\u9762\u53ef\u4ea4\u4e92\u65f6\u95f4\uff08TTI\uff09\uff1b<\/li>\n<li>\u5728\u4e22\u5305\/\u9ad8\u5ef6\u8fdf\u6761\u4ef6\u4e0b\u4ecd\u80fd\u4fdd\u6301\u7a33\u5b9a\u4f20\u8f93\u4e0e\u5feb\u901f\u6062\u590d\uff1b<\/li>\n<li>\u652f\u6301TLS\/HTTP\u534f\u8bae\u7684\u73b0\u4ee3\u5316\u4e0e\u79fb\u52a8\u4f18\u5316\uff08\u4f8b\u5982QUIC\/HTTP\/3\uff09\uff1b<\/li>\n<li>\u52a8\u6001\u5185\u5bb9\u52a0\u901f\u4e0e\u8fb9\u7f18\u8ba1\u7b97\u80fd\u529b\uff0c\u964d\u4f4e\u56de\u6e90\u538b\u529b\uff1b<\/li>\n<li>\u8de8\u5730\u57df\uff08\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\uff09\u4e00\u81f4\u7684\u4f53\u9a8c\u4e0e\u53ef\u89c2\u6d4b\u6027\u3002<\/li>\n<\/ul>\n<h2>\u4ece\u8fb9\u7f18\u5e03\u5c40\u5230\u534f\u8bae\u4f18\u5316\uff1aCDN\u7684\u6280\u672f\u6f14\u8fdb<\/h2>\n<h3>\u8fb9\u7f18\u8282\u70b9\uff08POP\uff09\u6269\u5c55\u4e0e\u667a\u80fd\u8def\u7531<\/h3>\n<p>\u4f20\u7edfCDN\u4fa7\u91cd\u5728\u5168\u7403\u6216\u533a\u57df\u5efa\u7ad9\u70b9\uff08POP\uff09\u4ee5\u7f29\u77ed\u7269\u7406\u8ddd\u79bb\u3002\u5982\u4eca\u7684\u8fb9\u7f18\u4e0d\u4ec5\u662f\u7f13\u5b58\u70b9\uff0c\u66f4\u878d\u5408\u667a\u80fd\u8def\u7531\u4e0e\u53ef\u7f16\u7a0b\u80fd\u529b\uff1a\u901a\u8fc7\u5b9e\u65f6\u7f51\u7edc\u8d28\u91cf\u63a2\u6d4b\uff08active 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TLS\u3001TLS offload\uff09\u6765\u51cf\u5c11\u56de\u6e90\u52a0\u5bc6\u6d41\u91cf\uff0c\u540c\u65f6\u652f\u6301\u4f1a\u8bdd\u6062\u590d\uff08session resumption\uff09\u3001OCSP stapling\u3001\u8bc1\u4e66\u81ea\u52a8\u7ba1\u7406\uff0c\u4ee5\u53caTLS 1.3\u4ee5\u964d\u4f4e\u63e1\u624b\u8f6e\u6b21\u3002\u4e3a\u4e86\u517c\u987e\u5b89\u5168\u4e0e\u6027\u80fd\uff0c\u8fb9\u7f18WAF\u3001DDoS\u7f13\u89e3\u3001\u901f\u7387\u9650\u5236\u7b49\u529f\u80fd\u5f80\u5f80\u96c6\u6210\u5728CDN\u5e73\u53f0\uff0c\u65e2\u4fdd\u62a4\u4e1a\u52a1\u53c8\u907f\u514d\u56de\u6e90\u74f6\u9888\u3002<\/p>\n<h3>\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u52a8\u6001\u5185\u5bb9\u52a0\u901f<\/h3>\n<p>\u5355\u7eaf\u7684\u7f13\u5b58\u5df2\u65e0\u6cd5\u6ee1\u8db3\u590d\u6742\u4e1a\u52a1\u9700\u6c42\u3002CDN\u6b63\u5728\u901a\u8fc7\u8fb9\u7f18\u811a\u672c\/\u51fd\u6570\uff08Edge Functions \/ Workers\uff09\u5728\u9760\u8fd1\u7528\u6237\u7684\u8282\u70b9\u4e0a\u6267\u884c\u8f7b\u91cf\u903b\u8f91\uff0c\u5e38\u89c1\u7528\u4f8b\u5305\u62ec\u9274\u6743\u3001A\/B\u6d4b\u8bd5\u3001\u56fe\u50cf\u4f18\u5316\uff08\u683c\u5f0f\u5207\u6362\/\u538b\u7f29\uff09\u3001SSR\u7f13\u5b58\u7b56\u7565\u3001\u548c\u5c40\u90e8\u52a8\u6001\u7ec4\u88c5\u7b49\u3002\u5bf9\u4e8e\u9700\u8981\u4f4e\u5ef6\u8fdf\u54cd\u5e94\u7684\u79fb\u52a8\u5e94\u7528\uff0c\u8fb9\u7f18\u8ba1\u7b97\u80fd\u663e\u8457\u964d\u4f4e\u56de\u6e90\u5ef6\u65f6\u548c\u670d\u52a1\u5668\u8d1f\u8f7d\uff0c\u63d0\u5347\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u5178\u578b\u5b9e\u73b0<\/h2>\n<h3>\u79fb\u52a8\u7f51\u9875\u52a0\u901f\u4e0e\u9996\u5c4f\u4f18\u5316<\/h3>\n<p>\u901a\u8fc7\u8fb9\u7f18\u7f13\u5b58\u5173\u952e\u8d44\u6e90\uff08HTML\u7247\u6bb5\u3001JS\u3001CSS\u3001\u56fe\u7247\uff09\u3001\u4f7f\u7528HTTP\/3\u51cf\u5c11\u63e1\u624b\u5f00\u9500\u3001\u542f\u7528Edge Side 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