{"id":209739,"date":"2025-10-23T21:38:33","date_gmt":"2025-10-23T13:38:33","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209739\/"},"modified":"2025-10-23T21:38:34","modified_gmt":"2025-10-23T13:38:34","slug":"cdn-112","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209739\/","title":{"rendered":"\u7528CDN\u62b5\u5fa1\u50f5\u5c38\u7f51\u7edc\u653b\u51fb\uff1a\u67b6\u6784\u4e0e\u5b9e\u6218\u65b9\u6848"},"content":{"rendered":"<p>\u968f\u7740\u4e92\u8054\u7f51\u670d\u52a1\u7684\u5168\u7403\u5316\u90e8\u7f72\uff0c\u50f5\u5c38\u7f51\u7edc\uff08Botnet\uff09\u5bf9\u7f51\u7ad9\u548c\u5728\u7ebf\u670d\u52a1\u7684\u653b\u51fb\u9891\u7387\u4e0e\u590d\u6742\u5ea6\u4e0d\u65ad\u4e0a\u5347\u3002\u5bf9\u4e8e\u4f9d\u8d56\u7a33\u5b9a\u8bbf\u95ee\u7684\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u548c\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u5355\u9760\u5355\u70b9\u670d\u52a1\u5668\uff08\u5982\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\uff09\u96be\u4ee5\u62b5\u5fa1\u5927\u89c4\u6a21\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\uff08DDoS\uff09\u4e0e\u5e94\u7528\u5c42\u50f5\u5c38\u6d41\u91cf\u3002\u91c7\u7528\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\u4f5c\u4e3a\u7b2c\u4e00\u9053\u9632\u7ebf\uff0c\u7ed3\u5408\u5408\u7406\u7684\u67b6\u6784\u8bbe\u8ba1\u4e0e\u5b9e\u6218\u9632\u62a4\u7b56\u7565\uff0c\u80fd\u591f\u663e\u8457\u63d0\u5347\u62b5\u5fa1\u50f5\u5c38\u7f51\u7edc\u653b\u51fb\u7684\u80fd\u529b\u4e0e\u4e1a\u52a1\u53ef\u7528\u6027\u3002<\/p>\n<h2>\u539f\u7406\u4e0e\u5173\u952e\u6280\u672f\u7ec4\u4ef6<\/h2>\n<p>CDN 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\u6258\u7ba1\u7684\u524d\u7aef\u9759\u6001\u9875\u3001\u56fe\u7247\u5e93\uff09\uff0c\u4f18\u5148\u4f7f\u7528\u9ad8\u8986\u76d6\u7684\u8fb9\u7f18\u7f13\u5b58\u7b56\u7565\uff0c\u5c06\u7edd\u5927\u591a\u6570\u8bf7\u6c42\u5728\u8fb9\u7f18\u5b8c\u6210\uff1b<\/li>\n<li>\u7ed3\u5408\u7f13\u5b58\u952e\u5206\u5c42\uff08\u6309\u8def\u5f84\u3001Query\u3001Cookie\uff09\u548c\u7f13\u5b58\u5237\u65b0\u7b56\u7565\uff0c\u51cf\u5c11\u6e90\u7ad9\u5bf9\u7a81\u53d1\u7f13\u5b58\u7a7f\u900f\u7684\u654f\u611f\u6027\uff1b<\/li>\n<li>\u914d\u5408\u57df\u540d\u6ce8\u518c\u65f6\u914d\u7f6e\u7684 DNS TTL \u7b56\u7565\uff0c\u5728\u653b\u51fb\u65f6\u901a\u8fc7 DNS \u5207\u6362\u6216\u964d\u7ea7\u7f13\u5b58\u51cf\u7f13\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<h3>\u52a8\u6001 API \u4e0e\u8eab\u4efd\u9a8c\u8bc1\u670d\u52a1<\/h3>\n<ul>\n<li>\u5bf9 API \u63a5\u53e3\u542f\u7528\u4e25\u683c\u7684\u901f\u7387\u9650\u5236\u548c\u52a8\u6001\u4ee4\u724c\uff08\u5982 JWT \u6216 API Key\uff09\u6821\u9a8c\uff1b<\/li>\n<li>\u5bf9\u9891\u7e41\u88ab\u653b\u51fb\u7684\u7aef\u70b9\u91c7\u7528 CAPTCHA\u3001\u884c\u4e3a\u6311\u6218\u6216\u8981\u6c42\u590d\u6742\u8bf7\u6c42\u5934\u3001\u65f6\u95f4\u6233\u7b7e\u540d\uff1b<\/li>\n<li>\u628a\u5173\u952e\u4e1a\u52a1\u63a5\u53e3\u653e\u5728\u79c1\u6709\u7f51\u7edc\u6216\u4ec5\u5141\u8bb8\u6765\u81ea CDN \u8fb9\u7f18\u7684\u56de\u6e90\u8bbf\u95ee\uff0c\u901a\u8fc7\u6e90 IP \u767d\u540d\u5355\uff08\u4f8b\u5982\u53ea\u5141\u8bb8 CDN \u7684\u56de\u6e90 IP \u8303\u56f4\uff09\u4fdd\u62a4\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u7b49\u6e90\u7ad9\u3002<\/li>\n<\/ul>\n<h3>\u9ad8\u98ce\u9669\u77ed\u671f\u6d3b\u52a8\uff08\u4fc3\u9500\u3001\u53d1\u5e03\uff09<\/h3>\n<ul>\n<li>\u5728\u6d41\u91cf\u6fc0\u589e\u9884\u671f\u671f\u95f4\uff0c\u9884\u5148\u63d0\u9ad8 CDN \u7684\u9632\u62a4\u7b49\u7ea7\uff08\u4f8b\u5982\u6253\u5f00\u66f4\u4e25\u683c\u7684 WAF \u7b56\u7565\u4e0e bot \u7b56\u7565\uff09\uff1b<\/li>\n<li>\u4e3a\u5173\u952e\u6d3b\u52a8\u51c6\u5907\u5f39\u6027\u540e\u7aef\uff08\u5982\u591a\u5730\u90e8\u7f72\u5230\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\u7684\u5907\u7528\u5b9e\u4f8b\uff09\uff0c\u5e76\u7528\u8d1f\u8f7d\u5747\u8861\u6216 DNS \u8f6e\u8be2\u8fdb\u884c\u6d41\u91cf\u5206\u6563\uff1b<\/li>\n<li>\u786e\u4fdd\u57df\u540d\u6ce8\u518c\u4fe1\u606f\u4e0e DNS \u63d0\u4f9b\u5546\u652f\u6301\u7d27\u6025\u5207\u6362\u4e0e\u8f83\u4f4e TTL\uff0c\u4ee5\u4fbf\u5feb\u901f\u505a\u6d41\u91cf\u5bfc\u6d41\u6216\u6545\u969c\u5207\u6362\u3002<\/li>\n<\/ul>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\uff1aCDN + \u591a\u5730\u57df\u6e90\u7ad9 VS \u5355\u4e00\u6e90\u7ad9<\/h2>\n<p><strong>CDN + \u591a\u5730\u57df\u6e90\u7ad9\uff08\u9999\u6e2fVPS\/\u7f8e\u56fdVPS \u7b49\uff09<\/strong>\uff1a<\/p>\n<ul>\n<li>\u9ad8\u53ef\u7528\u6027\u4e0e\u5bb9\u9519\uff1aAnycast 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