{"id":209681,"date":"2025-10-23T20:43:27","date_gmt":"2025-10-23T12:43:27","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209681\/"},"modified":"2025-10-23T20:43:28","modified_gmt":"2025-10-23T12:43:28","slug":"cdn-90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209681\/","title":{"rendered":"CDN\u52a0\u901f\u8de8\u5883\u7535\u5546\u7ed3\u7b97\u9875\uff1a\u79d2\u5f00\u4f53\u9a8c\u4e0e\u8f6c\u5316\u7387\u63d0\u5347\u7684\u5b9e\u6218\u7b56\u7565"},"content":{"rendered":"<p>\u5728\u8de8\u5883\u7535\u5546\u7684\u4ea4\u6613\u95ed\u73af\u4e2d\uff0c\u7ed3\u7b97\u9875\u9762\u627f\u62c5\u7740\u51b3\u5b9a\u6027\u89d2\u8272\u2014\u2014\u4e00\u65e6\u7528\u6237\u5728\u4ed8\u6b3e\u73af\u8282\u611f\u5230\u5ef6\u8fdf\u6216\u4f53\u9a8c\u4e0d\u987a\uff0c\u5f88\u53ef\u80fd\u76f4\u63a5\u5bfc\u81f4\u8d2d\u7269\u8f66\u653e\u5f03\u7387\u98d9\u5347\u3002\u501f\u52a9\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\u5bf9\u7ed3\u7b97\u9875\u505a\u4e13\u9879\u52a0\u901f\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u5b9e\u73b0\u201c\u79d2\u5f00\u4f53\u9a8c\u201d\uff0c\u8fd8\u53ef\u901a\u8fc7\u6539\u8fdb\u4ea4\u4e92\u6d41\u7545\u6027\u548c\u5b89\u5168\u6027\u663e\u8457\u63d0\u9ad8\u8f6c\u5316\u7387\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u6df1\u5165\u8bb2\u89e3CDN\u52a0\u901f\u7ed3\u7b97\u9875\u7684\u539f\u7406\u3001\u5b9e\u6218\u573a\u666f\u3001\u6280\u672f\u8981\u70b9\u4e0e\u9009\u8d2d\u5efa\u8bae\uff0c\u5e2e\u52a9\u60a8\u5728\u591a\u533a\u57df\u8fd0\u8425\uff08\u5982\u4f7f\u7528\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u65e5\u672c\u670d\u52a1\u5668\u7b49\uff09\u65f6\u5b9e\u73b0\u6027\u80fd\u4e0e\u5408\u89c4\u7684\u6700\u4f73\u5e73\u8861\u3002<\/p>\n<h2>\u5f15\u5bfc\u4e0e\u57fa\u672c\u539f\u7406\uff1a\u4e3a\u4ec0\u4e48CDN\u5bf9\u7ed3\u7b97\u9875\u81f3\u5173\u91cd\u8981<\/h2>\n<p>\u7ed3\u7b97\u9875\u867d\u901a\u5e38\u662f\u5355\u9875\u5e94\u7528\u6216\u7b80\u5355\u7684\u8868\u5355\u9875\uff0c\u4f46\u5b83\u5305\u542b\u5927\u91cf\u5173\u952e\u8d44\u6e90\u4e0e\u7b2c\u4e09\u65b9\u8bf7\u6c42\uff08\u652f\u4ed8\u7f51\u5173\u3001\u98ce\u63a7\u811a\u672c\u3001\u56fe\u7247\u3001\u5b57\u4f53\u3001\u5730\u56fe\u7b49\uff09\u3002CDN\u7684\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e\u5c06\u9759\u6001\u8d44\u6e90\u548c\u90e8\u5206\u53ef\u7f13\u5b58\u52a8\u6001\u5185\u5bb9\u63a8\u5230\u9760\u8fd1\u7528\u6237\u7684\u8fb9\u7f18\u8282\u70b9\uff0c\u4ece\u800c<strong>\u663e\u8457\u964d\u4f4e\u5f80\u8fd4\u65f6\u5ef6\uff08RTT\uff09\u4e0e\u9875\u9762\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09<\/strong>\uff0c\u5e76\u901a\u8fc7\u8fde\u63a5\u4f18\u5316\uff08\u5982TCP\u9884\u70ed\u3001TLS\u4f1a\u8bdd\u91cd\u7528\u3001HTTP\/2\u6216HTTP\/3\uff09\u51cf\u5c11\u63e1\u624b\u6210\u672c\u3002<\/p>\n<h3>\u5173\u952e\u6280\u672f\u8981\u70b9<\/h3>\n<ul>\n<li><strong>Anycast\u4e0e\u8fb9\u7f18\u8282\u70b9\u5206\u5e03\uff1a<\/strong>Anycast\u8def\u7531\u7ed3\u5408\u8986\u76d6\u5e7f\u6cdb\u7684\u8fb9\u7f18\u8282\u70b9\u80fd\u786e\u4fdd\u7528\u6237\u8bf7\u6c42\u88ab\u5bfc\u5411\u6700\u4f18\u8282\u70b9\uff0c\u5c24\u5176\u5bf9\u4e9a\u6d32\u8bbf\u95ee\u8005\u8bbf\u95ee\u9999\u6e2f\u670d\u52a1\u5668\u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\u65f6\u6548\u679c\u660e\u663e\u3002<\/li>\n<li><strong>HTTP\/2 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\u9759\u6001\u8d44\u6e90\u4e0e\u7b2c\u4e09\u65b9\u811a\u672c\u62c6\u5206<\/h3>\n<p>\u5c06\u7ed3\u7b97\u9875\u4e2d\u53ef\u7f13\u5b58\u7684\u9759\u6001\u8d44\u6e90\uff08logo\u3001css\u3001\u901a\u7528\u811a\u672c\u5e93\uff09\u901a\u8fc7CDN\u5206\u53d1\uff1b\u5bf9\u7b2c\u4e09\u65b9\u652f\u4ed8SDK\u4e0e\u98ce\u63a7\u811a\u672c\u4f7f\u7528\u5f02\u6b65\u52a0\u8f7d\u6216\u6309\u9700\u52a0\u8f7d\uff0c\u907f\u514d\u963b\u585e\u5173\u952e\u6e32\u67d3\u8def\u5f84\u3002\u63a8\u8350\u4f7f\u7528Resource Hints\uff08preconnect\u3001dns-prefetch\uff09\u4e3a\u652f\u4ed8\u57df\u540d\u548cCDN\u57df\u540d\u9884\u70ed\u8fde\u63a5\uff0c\u4ece\u800c\u8282\u7701DNS\u89e3\u6790\u4e0eTLS\u63e1\u624b\u7684\u65f6\u95f4\u3002<\/p>\n<h3>2. \u8fb9\u7f18\u7f13\u5b58\u52a8\u6001\u5185\u5bb9\uff08Edge-Side Includes \/ ESI\uff09<\/h3>\n<p>\u901a\u8fc7ESI\u6216\u8fb9\u7f18\u51fd\u6570\uff08Edge Functions\uff09\u628a\u9875\u9762\u62c6\u6210\u53ef\u7f13\u5b58\u7247\u6bb5\u4e0e\u5b9e\u65f6\u7247\u6bb5\u3002\u4e3e\u4f8b\uff1a\u8d2d\u7269\u8f66\u6982\u89c8\u4e0e\u4f18\u60e0\u5238\u6a21\u5757\u53ef\u5728\u8fb9\u7f18\u7f13\u5b58\uff0c\u800c\u652f\u4ed8\u91d1\u989d\u3001\u7528\u6237\u654f\u611f\u4fe1\u606f\u4e0e\u5e93\u5b58\u9700\u4ece\u6e90\u7ad9\u6216\u8ba4\u8bc1\u8fb9\u7f18\u51fd\u6570\u83b7\u53d6\u3002\u8fd9\u79cd\u5206\u5c42\u7f13\u5b58\u65b9\u5f0f\u5bf9\u4f7f\u7528\u9999\u6e2fVPS\u6216\u7f8e\u56fdVPS\u7684\u7ad9\u70b9\u5c24\u4e3a\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u80fd\u5728\u4fdd\u7559\u6570\u636e\u65f6\u6548\u6027\u7684\u540c\u65f6\uff0c\u51cf\u5c11\u6e90\u7ad9\u56de\u6e90\u538b\u529b\u3002<\/p>\n<h3>3. Origin Shield \u4e0e\u56de\u6e90\u4f18\u5316<\/h3>\n<p>\u542f\u7528Origin Shield\u6216\u7c7b\u4f3c\u7684\u4e2d\u95f4\u7f13\u5b58\u5c42\u53ef\u805a\u5408\u6765\u81ea\u8fb9\u7f18\u8282\u70b9\u7684\u56de\u6e90\u8bf7\u6c42\uff0c\u964d\u4f4e\u6e90\u7ad9\uff08\u65e0\u8bba\u662f\u9999\u6e2f\u670d\u52a1\u5668\u8fd8\u662f\u7f8e\u56fd\u670d\u52a1\u5668\uff09\u7684\u8d1f\u8f7d\u4e0e\u5e26\u5bbd\u6210\u672c\u3002\u914d\u5408\u7f13\u5b58\u952e\u4f18\u5316\uff08\u5ffd\u7565\u65e0\u5173\u67e5\u8be2\u53c2\u6570\u3001\u6309cookie\u6216header\u5206\u7ec4\uff09\u80fd\u8fdb\u4e00\u6b65\u964d\u4f4e\u65e0\u6548\u56de\u6e90\u3002<\/p>\n<h3>4. \u5b89\u5168\u4e0e\u5408\u89c4\uff08PCI, WAF, Bot Mitigation\uff09<\/h3>\n<p>\u7ed3\u7b97\u9875\u9700\u6ee1\u8db3PCI-DSS\u5408\u89c4\uff08\u5982\u679c\u6258\u7ba1\u654f\u611f\u652f\u4ed8\u4fe1\u606f\uff09\u3002\u5efa\u8bae\u91c7\u7528Tokenization\uff08\u4ee4\u724c\u5316\uff09\u4e0e\u5ba2\u6237\u7aef\u52a0\u5bc6\uff0c\u907f\u514d\u5c06\u5361\u4fe1\u606f\u76f4\u63a5\u4f20\u56de\u6e90\u7ad9\u3002CDN\u5e94\u63d0\u4f9bWAF\u3001\u9632DDoS\u4e0eBot\u7ba1\u7406\u80fd\u529b\uff1a\u901a\u8fc7\u901f\u7387\u9650\u5236\u3001\u884c\u4e3a\u5206\u6790\u4e0e\u6311\u6218\u673a\u5236\uff08\u5982CAPTCHA\uff09\u51cf\u8f7b\u81ea\u52a8\u5316\u653b\u51fb\u4e0e\u5237\u5355\u98ce\u9669\uff0c\u4fdd\u62a4\u652f\u4ed8\u901a\u9053\u3002<\/p>\n<h2>\u6027\u80fd\u6307\u6807\u4e0e\u6d4b\u91cf\u65b9\u6cd5<\/h2>\n<p>\u91cf\u5316CDN\u52a0\u901f\u6548\u679c\u9700\u8981\u4e00\u5957\u5b8c\u6574\u6307\u6807\uff1a<\/p>\n<ul>\n<li>TTFB\u3001Start Render\u3001First Contentful Paint\uff08FCP\uff09\u3001Largest Contentful 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