{"id":209595,"date":"2025-10-23T18:45:23","date_gmt":"2025-10-23T10:45:23","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209595\/"},"modified":"2025-10-23T18:45:24","modified_gmt":"2025-10-23T10:45:24","slug":"cdn-54","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209595\/","title":{"rendered":"\u91d1\u878d\u7f51\u7ad9\u7684CDN\u5b9e\u6218\uff1a\u63d0\u901f\u3001\u6297DDoS\u4e0e\u5408\u89c4\u4e09\u5927\u5173\u952e"},"content":{"rendered":"<p>\u5728\u91d1\u878d\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u7f51\u7ad9\u7684\u53ef\u7528\u6027\u3001\u6027\u80fd\u4e0e\u5408\u89c4\u6027\u76f4\u63a5\u5173\u8054\u5230\u7528\u6237\u4fe1\u4efb\u548c\u4e1a\u52a1\u8fde\u7eed\u6027\u3002\u672c\u6587\u4ece\u6280\u672f\u89d2\u5ea6\u6df1\u5165\u63a2\u8ba8 CDN \u5728\u91d1\u878d\u7f51\u7ad9\u4e0a\u7684\u5b9e\u6218\u5e94\u7528\uff0c\u91cd\u70b9\u56f4\u7ed5\u201c\u63d0\u901f\u3001\u6297DDoS 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Compute\uff09\u3001WAF \u7b56\u7565\u3001\u4ee5\u53ca\u65e5\u5fd7\u4e0e\u5ba1\u8ba1\u4e0a\u62a5\u80fd\u529b\u3002<\/p>\n<h3>\u7f13\u5b58\u4e0e\u4e00\u81f4\u6027\u7b56\u7565<\/h3>\n<ul>\n<li>\u7f13\u5b58\u63a7\u5236\uff1a\u901a\u8fc7\u5408\u7406\u8bbe\u7f6e Cache-Control\u3001Expires\u3001ETag \u4e0e Last-Modified\uff0c\u5b9e\u73b0\u5bf9\u9875\u9762\u3001\u63a5\u53e3\u4e0e\u8d44\u4ea7\u7684\u5206\u7ea7\u7f13\u5b58\u3002\u91d1\u878d\u4e2d\u5bf9\u654f\u611f\u6570\u636e\u5e94<strong>\u4e25\u683c\u7981\u7528\u7f13\u5b58<\/strong>\u6216\u4ec5\u5728\u8fb9\u7f18\u5bf9\u975e\u654f\u611f\u9759\u6001\u8d44\u6e90\u5f00\u542f\u957f TTL\u3002<\/li>\n<li>\u52a8\u6001\u5185\u5bb9\u5904\u7406\uff1a\u5bf9\u5b9e\u65f6\u8ba1\u7b97\u6216\u4ea4\u6613\u63a5\u53e3\u91c7\u7528\u201c\u7f13\u5b58\u7a7f\u900f\/\u4ee3\u7406\u6a21\u5f0f\u201d\uff0c\u5373\u8fb9\u7f18\u4ec5\u505a\u8fde\u63a5\u52a0\u901f\u3001TCP\/HTTP \u5c42\u9762\u7684\u4f18\u5316\uff0c\u771f\u6b63\u7684\u4e1a\u52a1\u903b\u8f91\u4ecd\u56de\u6e90\u9a8c\u8bc1\u3002<\/li>\n<li>\u7f13\u5b58\u5237\u65b0\uff1a\u652f\u6301\u6309\u8def\u5f84\u3001\u6309\u6807\u7b7e\u6216\u6309\u533a\u57df\u7684\u667a\u80fd\u6e05\u7406\uff08Purge\uff09\uff0c\u5e76\u4f7f\u7528 Origin Shield \u6216\u4e2d\u95f4\u7f13\u5b58\u51cf\u5c11\u56de\u6e90\u98ce\u66b4\u3002<\/li>\n<\/ul>\n<h3>\u4f20\u8f93\u4e0e\u534f\u8bae\u4f18\u5316<\/h3>\n<ul>\n<li>\u542f\u7528 HTTP\/2\u3001HTTP\/3\uff08QUIC\uff09\u4e0e TLS 1.3\uff1a\u51cf\u5c11\u63e1\u624b\u3001\u5b9e\u73b0\u591a\u8def\u590d\u7528\uff0c\u663e\u8457\u964d\u4f4e\u9ad8\u5ef6\u8fdf\u7f51\u7edc\u4e2d\u7684\u9875\u9762\u52a0\u8f7d\u65f6\u95f4\u3002<\/li>\n<li>\u538b\u7f29\u4e0e\u4f20\u8f93\u4f18\u5316\uff1a\u8fb9\u7f18\u542f\u7528 Brotli \u6216 Gzip\uff0c\u56fe\u7247\u4f7f\u7528 WebP\/AVIF \u8f6c\u7801\u548c\u5ef6\u8fdf\u52a0\u8f7d\uff0c\u7ed3\u5408\u5206\u7247\u4e0e\u9884\u8fde\u63a5\u7b56\u7565\u3002<\/li>\n<li>\u8fde\u63a5\u7ba1\u7406\uff1a\u4f7f\u7528\u957f\u8fde\u63a5\u3001keep-alive \u4e0e TCP Fast Open \u7b49\uff0c\u914d\u5408 Anycast \u8def\u7531\u964d\u4f4e\u8def\u7531\u8df3\u6570\u3002<\/li>\n<\/ul>\n<h2>\u6297 DDoS \u5b9e\u6218\u7b56\u7565\uff08\u4ece\u7f51\u7edc\u5c42\u5230\u5e94\u7528\u5c42\uff09<\/h2>\n<p>\u91d1\u878d\u7f51\u7ad9\u9762\u5bf9\u7684\u5a01\u80c1\u5305\u62ec L3\/L4\uff08SYN\u3001UDP \u653e\u5927\uff09\u3001L7\uff08HTTP Flood\u3001API \u6ee5\u7528\uff09\u653b\u51fb\u3002CDN \u5728\u7f13\u89e3\u4e0d\u540c\u5c42\u7ea7\u653b\u51fb\u65f6\uff0c\u626e\u6f14\u4e09\u91cd\u89d2\u8272\uff1a\u5438\u6536\u5e26\u5bbd\u3001\u963b\u65ad\u6076\u610f\u6d41\u91cf\u3001\u8fdb\u884c\u667a\u80fd\u8bc6\u522b\u4e0e\u5206\u6d41\u3002<\/p>\n<h3>\u7f51\u7edc\u4e0e\u4f20\u8f93\u5c42\u9632\u62a4<\/h3>\n<ul>\n<li>Anycast + \u5927\u5e26\u5bbd\u6e05\u6d17\u4e2d\u5fc3\uff1aAnycast \u5c06\u653b\u51fb\u6d41\u91cf\u5206\u6563\u5230\u591a\u4e2a POP\uff0c\u7ed3\u5408\u6e05\u6d17\u4e2d\u5fc3\u8fdb\u884c\u6d41\u91cf\u6e05\u6d17\uff0c\u9002\u5408\u963b\u65ad\u653e\u5927\u4e0e\u5e26\u5bbd\u8017\u5c3d\u7c7b\u653b\u51fb\u3002<\/li>\n<li>\u901f\u7387\u4e0e\u8fde\u63a5\u9650\u5236\uff1a\u5728\u8fb9\u7f18\u5bf9\u5355 IP\u3001\u5355\u8fde\u63a5\u6570\u3001SYN \u7f13\u51b2\u961f\u5217\u8fdb\u884c\u9650\u5236\uff0c\u9632\u6b62\u8d44\u6e90\u8017\u5c3d\u3002<\/li>\n<li>\u9ed1\u767d\u540d\u5355\u4e0e\u5730\u7406\u5c01\u9501\uff1a\u5bf9\u5f02\u5e38\u5730\u7406\u6765\u6e90\u505a\u4e34\u65f6\u5c01\u7981\uff0c\u6216\u4ec5\u5141\u8bb8\u5df2\u77e5\u56fd\u5bb6\/\u5730\u533a\u8bbf\u95ee\u654f\u611f\u63a5\u53e3\uff08\u4f8b\u5982\u53ea\u5141\u8bb8\u9999\u6e2f\u3001\u7f8e\u56fd\u6216\u8005\u65e5\u672c\u7684 IP \u8bbf\u95ee\u7279\u5b9a\u7ba1\u7406 API\uff09\u3002<\/li>\n<\/ul>\n<h3>\u5e94\u7528\u5c42\uff08L7\uff09\u9632\u62a4\u4e0e\u673a\u5668\u4eba\u7ba1\u7406<\/h3>\n<ul>\n<li>\u884c\u4e3a\u5206\u6790\u4e0e\u6311\u6218\u673a\u5236\uff1a\u57fa\u4e8e JS \u6307\u7eb9\u3001\u6d4f\u89c8\u5668\u884c\u4e3a\u3001\u901f\u7387\u6a21\u5f0f\u89e6\u53d1\u9a8c\u8bc1\u7801\u6216 JS \u6311\u6218\uff0c\u963b\u65ad\u722c\u866b\u4e0e\u81ea\u52a8\u5316\u653b\u51fb\u3002<\/li>\n<li>API \u8bbf\u95ee\u63a7\u5236\uff1a\u91c7\u7528\u77ed\u671f\u7b7e\u540d URL\u3001Token \u9a8c\u8bc1\u3001HMAC \u7b7e\u540d\u4ee5\u53ca\u901f\u7387\u914d\u989d\uff0c\u4fdd\u62a4\u4ea4\u6613\u63a5\u53e3\u3002<\/li>\n<li>\u89c4\u5219\u4e0e ML \u5f15\u64ce\uff1a\u7ed3\u5408\u81ea\u5b9a\u4e49 WAF \u89c4\u5219\u548c\u673a\u5668\u5b66\u4e60\u5f02\u5e38\u68c0\u6d4b\uff0c\u53ca\u65f6\u8bc6\u522b SQL \u6ce8\u5165\u3001XSS\u3001\u53c2\u6570\u7be1\u6539\u7b49\u653b\u51fb\u3002<\/li>\n<\/ul>\n<h2>\u5408\u89c4\u4e0e\u5ba1\u8ba1\uff1a\u91d1\u878d\u7c7b\u7f51\u7ad9\u7684\u7279\u6b8a\u8981\u6c42<\/h2>\n<p>\u91d1\u878d\u884c\u4e1a\u5728\u6570\u636e\u4fdd\u62a4\u3001\u5ba1\u8ba1\u4e0e\u8de8\u5883\u4f20\u8f93\u65b9\u9762\u6709\u66f4\u4e25\u683c\u7684\u8981\u6c42\u3002CDN \u5728\u52a0\u901f\u4e0e\u5b89\u5168\u4e4b\u5916\uff0c\u8fd8\u5fc5\u987b\u6ee1\u8db3\u5408\u89c4\u9700\u6c42\u3002<\/p>\n<h3>\u65e5\u5fd7\u4fdd\u5b58\u4e0e\u53ef\u5ba1\u8ba1\u6027<\/h3>\n<ul>\n<li>\u5b8c\u6574\u8bbf\u95ee\u4e0e\u5b89\u5168\u65e5\u5fd7\uff1a\u8fb9\u7f18\u5e94\u8bb0\u5f55\u5b8c\u6574\u7684\u8bf7\u6c42\/\u54cd\u5e94\u5143\u6570\u636e\uff08URI\u3001Headers\u3001\u6e90 IP\u3001\u8fb9\u7f18\u8282\u70b9 ID\u3001\u65f6\u95f4\u6233\uff09\uff0c\u5e76\u652f\u6301\u5c06\u65e5\u5fd7\u63a8\u9001\u5230 SIEM\u3001Splunk \u6216\u4e91\u5b58\u50a8\u3002<\/li>\n<li>\u5ba1\u8ba1\u94fe\u8def\uff1a\u786e\u4fdd\u65e5\u5fd7\u4e0d\u53ef\u7be1\u6539\u7684\u5b58\u50a8\u7b56\u7565\uff08WORM\u3001\u5199\u4e00\u6b21\u8bfb\u591a\u6b21\uff09\uff0c\u6ee1\u8db3\u5408\u89c4\u68c0\u67e5\u7684\u53d6\u8bc1\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h3>\u6570\u636e\u4e3b\u6743\u4e0e\u8de8\u5883\u5408\u89c4<\/h3>\n<ul>\n<li>\u5730\u57df\u5316\u7f13\u5b58\u7b56\u7565\uff1a\u5bf9\u6d89\u53ca\u4e2a\u4eba\u91d1\u878d\u4fe1\u606f\u7684\u5185\u5bb9\u7981\u6b62\u5728\u90e8\u5206\u56fd\u5bb6\/\u5730\u533a\u7f13\u5b58\u6216\u4f20\u8f93\uff0c\u5fc5\u8981\u65f6\u9650\u5236\u4ec5\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7279\u5b9a\u533a\u57df\u56de\u6e90\u3002<\/li>\n<li>\u5408\u89c4\u8ba4\u8bc1\uff1a\u4f18\u5148\u9009\u62e9\u80fd\u63d0\u4f9b SOC2\u3001ISO27001\u3001PCI-DSS\uff08\u5982\u679c\u5904\u7406\u652f\u4ed8\uff09\u8d44\u8d28\u7684 CDN \u4e0e\u6570\u636e\u4e2d\u5fc3\u3002<\/li>\n<\/ul>\n<h2>\u5728\u591a\u533a\u57df\u90e8\u7f72\u65f6\u7684\u5e94\u7528\u573a\u666f\u4e0e\u4f18\u52bf\u5bf9\u6bd4<\/h2>\n<p>\u4e0d\u540c\u533a\u57df\uff08\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\uff09\u90e8\u7f72\u4f1a\u5f71\u54cd\u7f51\u7edc\u5ef6\u8fdf\u3001\u5408\u89c4\u8981\u6c42\u4e0e\u6210\u672c\u3002\u5e38\u89c1\u573a\u666f\u5305\u62ec\u5168\u7403\u63a5\u5165\u3001\u4e9a\u592a\u4f18\u5148\u4e0e\u533a\u57df\u707e\u5907\u3002<\/p>\n<h3>\u5168\u7403\u63a5\u5165 vs \u533a\u57df\u4f18\u5148<\/h3>\n<ul>\n<li>\u5168\u7403\u63a5\u5165\uff1a\u91c7\u7528\u5168\u7403 Anycast CDN + \u591a\u4e2a\u56de\u6e90\uff08\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u7b49\uff09\uff0c\u9002\u5408\u8de8\u56fd\u91d1\u878d\u673a\u6784\uff0c\u4f18\u70b9\u662f\u4f4e\u5ef6\u8fdf\u8986\u76d6\u5e7f\u3001\u80fd\u5c31\u8fd1\u6e05\u6d17\u653b\u51fb\u3002<\/li>\n<li>\u533a\u57df\u4f18\u5148\uff1a\u9488\u5bf9\u4e9a\u592a\u5ba2\u6237\u53ef\u4f18\u5148\u89e6\u8fbe\u9999\u6e2f\u3001\u9999\u6e2fVPS\u3001\u65e5\u672c\u670d\u52a1\u5668\u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\u7684\u8fb9\u7f18\u8282\u70b9\uff0c\u964d\u4f4e\u8de8\u6d0b\u5ef6\u8fdf\u4e0e\u6210\u672c\u3002<\/li>\n<\/ul>\n<h3>\u4e3b\u5907\u4e0e\u707e\u5907\u7b56\u7565<\/h3>\n<ul>\n<li>\u591a\u6d3b\u90e8\u7f72\uff1a\u5728\u9999\u6e2f\u670d\u52a1\u5668\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\u95f4\u505a\u8de8\u5730\u57df\u591a\u6d3b\uff0c\u7ed3\u5408\u8de8\u57df\u5065\u5eb7\u68c0\u67e5\u4e0e\u6d41\u91cf\u5207\u6362\u7b56\u7565\uff0c\u786e\u4fdd\u4efb\u4e00\u533a\u57df\u6545\u969c\u65f6\u81ea\u52a8\u5207\u6d41\u3002<\/li>\n<li>VPS \u4e0e\u4e13\u7528\u670d\u52a1\u5668\u6df7\u5408\uff1a\u7ba1\u7406\u63a7\u5236\u9762\u4e0e\u5c0f\u6d41\u91cf\u670d\u52a1\u53ef\u90e8\u7f72\u5728\u9999\u6e2fVPS \u6216\u7f8e\u56fdVPS\uff0c\u5173\u952e\u4e1a\u52a1\u90e8\u7f72\u5728\u66f4\u9ad8 SLA \u7684\u4e13\u7528\u4e3b\u673a\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d CDN \u4e0e\u76f8\u5173\u57fa\u7840\u8bbe\u65bd\u7684\u5efa\u8bae<\/h2>\n<p>\u9009\u62e9 CDN \u65f6\u8981\u4ece\u6027\u80fd\u3001\u53ef\u9760\u6027\u3001\u5b89\u5168\u6027\u4e0e\u5408\u89c4\u6027\u7efc\u5408\u8003\u91cf\u3002\u4e0b\u9762\u7ed9\u51fa\u5177\u4f53\u7684\u8003\u91cf\u7ef4\u5ea6\u4e0e\u914d\u7f6e\u5efa\u8bae\u3002<\/p>\n<h3>\u6027\u80fd\u4e0e\u8986\u76d6<\/h3>\n<ul>\n<li>\u8282\u70b9\u5206\u5e03\uff1a\u786e\u8ba4\u5728\u76ee\u6807\u7528\u6237\u5bc6\u96c6\u533a\uff08\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u3001\u7f8e\u56fd\uff09\u6709\u8db3\u591f PoP\uff0c\u6d4b\u91cf RTT \u4e0e\u541e\u5410\u3002<\/li>\n<li>\u534f\u8bae\u652f\u6301\uff1a\u5fc5\u987b\u652f\u6301 HTTP\/2\u3001HTTP\/3 \u4e0e TLS 1.3\uff0c\u5e76\u80fd\u5bf9\u52a8\u6001\u56de\u6e90\u505a\u8fde\u63a5\u590d\u7528\u3002<\/li>\n<\/ul>\n<h3>\u5b89\u5168\u80fd\u529b<\/h3>\n<ul>\n<li>\u9632 DDoS \u80fd\u529b\uff1a\u660e\u786e L3\/L4 \u6e05\u6d17\u5e26\u5bbd\u3001DDoS SLA \u4e0e\u6e05\u6d17\u54cd\u5e94\u65f6\u95f4\u3002<\/li>\n<li>\u9ad8\u7ea7\u9632\u62a4\uff1a\u5185\u7f6e WAF\u3001Bot \u7ba1\u7406\u3001\u901f\u7387\u9650\u5236\u4e0e\u81ea\u5b9a\u4e49\u89c4\u5219\u3002<\/li>\n<\/ul>\n<h3>\u5408\u89c4\u4e0e\u8fd0\u7ef4<\/h3>\n<ul>\n<li>\u5408\u89c4\u8d44\u8d28\uff1a\u68c0\u67e5\u4f9b\u5e94\u5546\u662f\u5426\u63d0\u4f9b\u5408\u89c4\u8bc1\u660e\u4e0e\u5408\u89c4\u652f\u6301\u6587\u6863\u3002<\/li>\n<li>\u65e5\u5fd7\u4e0e\u5bf9\u63a5\uff1a\u80fd\u5426\u628a\u8bbf\u95ee\u65e5\u5fd7\u5b9e\u65f6\u63a8\u9001\u5230\u4f01\u4e1a 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