{"id":209847,"date":"2025-10-24T00:12:15","date_gmt":"2025-10-23T16:12:15","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209847\/"},"modified":"2025-10-24T00:12:16","modified_gmt":"2025-10-23T16:12:16","slug":"cdn-158","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209847\/","title":{"rendered":"\u4f01\u4e1aCDN\u9009\u578b\u89e3\u6790\uff1a\u57fa\u4e8e\u771f\u5b9e\u6848\u4f8b\u7684\u5bf9\u6bd4\u4e0e\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u4e92\u8054\u7f51\u5e03\u5c40\u4e2d\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u5df2\u6210\u4e3a\u4fdd\u969c\u7f51\u7ad9\u6027\u80fd\u4e0e\u53ef\u7528\u6027\u7684\u5173\u952e\u7ec4\u4ef6\u3002\u672c\u6587\u4ee5\u771f\u5b9e\u6848\u4f8b\u4e3a\u57fa\u7840\uff0c\u4ece\u539f\u7406\u5230\u843d\u5730\u5b9e\u65bd\u3001\u4ee5\u53ca\u9762\u5411\u4f01\u4e1a\u7684\u9009\u578b\u5efa\u8bae\u505a\u7cfb\u7edf\u89e3\u6790\uff0c\u5e2e\u52a9\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u5728\u9009\u62e9 CDN \u65f6\u505a\u51fa\u66f4\u5408\u7406\u7684\u51b3\u7b56\u3002\u6587\u4e2d\u5c06\u81ea\u7136\u6d89\u53ca\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u3001\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\u3001\u57df\u540d\u6ce8\u518c\u3001\u6d77\u5916\u670d\u52a1\u5668\u3001\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u3001\u65b0\u52a0\u5761\u670d\u52a1\u5668\u7b49\u5e38\u89c1\u8fd0\u7ef4\u5143\u7d20\uff0c\u5e76\u7ed3\u5408\u6280\u672f\u7ec6\u8282\u7ed9\u51fa\u53ef\u64cd\u4f5c\u7684\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n<h2>CDN \u57fa\u672c\u539f\u7406\u4e0e\u5173\u952e\u7ec4\u4ef6<\/h2>\n<p>CDN 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A\uff1a\u8de8\u56fd\u7535\u5546\u5e73\u53f0\uff08\u4e9a\u592a+\u7f8e\u6d32\uff09<\/h3>\n<p>\u80cc\u666f\uff1a\u4e1a\u52a1\u96c6\u4e2d\u5728\u4e9a\u592a\u548c\u7f8e\u6d32\uff0c\u91cd\u8981\u6d41\u91cf\u8282\u70b9\u4e3a\u9999\u6e2f\u3001\u65b0\u52a0\u5761\u3001\u7f8e\u56fd\u4e1c\u5cb8\u4e0e\u897f\u5cb8\u3002\u76ee\u6807\u662f\u4f4e\u5ef6\u8fdf\u7ed3\u8d26\u4e0e\u9ad8\u5e76\u53d1\u6587\u4ef6\u5206\u53d1\u3002<\/p>\n<ul>\n<li>\u65b9\u6848\u8981\u70b9\uff1a\u91c7\u7528\u591a\u533a\u57df PoP \u8986\u76d6\uff08\u9999\u6e2f\u3001\u65b0\u52a0\u5761\u3001\u4e1c\u4eac\u3001\u9996\u5c14\u3001\u6d1b\u6749\u77f6\u3001\u7ebd\u7ea6\uff09\uff0c\u5e76\u5728\u6bcf\u4e2a\u533a\u57df\u90e8\u7f72\u4e2d\u7ee7\u7f13\u5b58\u4e0e\u8d1f\u8f7d\u5747\u8861\u3002\u5bf9\u652f\u4ed8\u76f8\u5173\u63a5\u53e3\u91c7\u53d6\u4e0d\u7f13\u5b58\u6216\u6781\u77ed\u7f13\u5b58\uff0c\u5e76\u4f7f\u7528 TLS 1.3+HTTP\/2 \u4e0e QUIC\/HTTP\/3 \u63d0\u5347\u63e1\u624b\u4e0e\u4f20\u8f93\u6548\u7387\u3002<\/li>\n<li>\u6548\u679c\uff1a\u9875\u9762\u9996\u5c4f\u52a0\u8f7d\u65f6\u95f4\u51cf\u5c11 40% \u4ee5\u4e0a\uff0c\u7ed3\u8d26\u5931\u8d25\u7387\u5728\u9ad8\u5cf0\u671f\u4e0b\u964d\u663e\u8457\u3002\u6e90\u7ad9\u9009\u7528\u9999\u6e2f\u670d\u52a1\u5668\u4f5c\u4e3a\u4e9a\u592a\u4e3b\u7ad9\u70b9\uff0c\u5907\u4efd\u5728\u7f8e\u56fd\u670d\u52a1\u5668\uff0c\u63d0\u9ad8\u5bb9\u707e\u80fd\u529b\u3002<\/li>\n<\/ul>\n<h3>\u6848\u4f8b B\uff1a\u5185\u5bb9\u5206\u53d1\u4e0e\u76f4\u64ad\u5e73\u53f0\uff08\u533a\u57df\u6027\uff09<\/h3>\n<p>\u80cc\u666f\uff1a\u4e3b\u8981\u7528\u6237\u96c6\u4e2d\u5728\u9999\u6e2f\u4e0e\u4e1c\u5357\u4e9a\uff0c\u76f4\u64ad\u4e0e\u70b9\u64ad\u5e76\u91cd\uff0c\u5bf9\u5e26\u5bbd\u4e0e\u7a33\u5b9a\u6027\u8981\u6c42\u9ad8\u3002<\/p>\n<ul>\n<li>\u65b9\u6848\u8981\u70b9\uff1a\u5728\u9999\u6e2f\u4e0e\u65b0\u52a0\u5761\u90e8\u7f72\u9ad8\u5e26\u5bbd PoP\uff0c\u5e76\u4f7f\u7528\u4e13\u7ebf\u56de\u6e90\u6216\u91c7\u7528\u9999\u6e2fVPS\u3001\u83f2\u5f8b\u5bbe\/\u65b0\u52a0\u5761\u673a\u623f\u4f5c\u4e3a\u4e2d\u8f6c\u3002\u5f15\u5165\u81ea\u9002\u5e94\u7801\u6d41\uff08ABR\uff09+\u8fb9\u7f18\u8f6c\u7801\u51cf\u5c11\u56de\u6e90\u538b\u529b\uff0c\u540c\u65f6\u542f\u7528 WAF \u4e0e DDoS \u9632\u62a4\uff0c\u4fdd\u969c\u76f4\u64ad\u7a33\u5b9a\u6027\u3002<\/li>\n<li>\u6548\u679c\uff1a\u76f4\u64ad\u5361\u987f\u7387\u663e\u8457\u964d\u4f4e\uff0c\u56de\u6e90\u5e26\u5bbd\u4e0b\u964d 60%\uff0c\u7528\u6237\u533a\u57df\u5185\u64ad\u653e\u542f\u52a8\u65f6\u95f4\u660e\u663e\u7f29\u77ed\u3002<\/li>\n<\/ul>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\uff1a\u81ea\u5efa CDN vs \u5546\u4e1a CDN<\/h2>\n<p>\u4f01\u4e1a\u5728\u9009\u62e9\u81ea\u5efa\u8fd8\u662f\u4f7f\u7528\u7b2c\u4e09\u65b9 CDN \u65f6\u9700\u6743\u8861\u6210\u672c\u3001\u8fd0\u7ef4\u80fd\u529b\u4e0e\u529f\u80fd\u6210\u719f\u5ea6\u3002<\/p>\n<ul>\n<li><strong>\u81ea\u5efa CDN<\/strong>\uff1a\u9002\u5408\u5927\u578b\u4e92\u8054\u7f51\u4f01\u4e1a\u6216\u6709\u7279\u6b8a\u5408\u89c4\u9700\u6c42\u7684\u7ec4\u7ec7\u3002\u4f18\u70b9\u662f\u9ad8\u5ea6\u53ef\u63a7\uff08\u8282\u70b9\u914d\u7f6e\u3001\u7f13\u5b58\u903b\u8f91\u3001\u65e5\u5fd7\u9690\u79c1\uff09\uff0c\u7f3a\u70b9\u662f\u524d\u671f\u6295\u5165\u5927\u3001\u8fd0\u7ef4\u590d\u6742\uff0c\u96be\u4ee5\u5feb\u901f\u6269\u5c55\u6d77\u5916 PoP\uff08\u4f8b\u5982\u5728\u65e5\u672c\u670d\u52a1\u5668\u6216\u97e9\u56fd\u670d\u52a1\u5668\u90e8\u7f72\u9700\u8981\u66f4\u591a\u5408\u4f5c\u4e0e\u6210\u672c\uff09\u3002<\/li>\n<li><strong>\u5546\u4e1a CDN<\/strong>\uff1a\u9002\u5408\u5927\u591a\u6570\u4e2d\u5c0f\u4f01\u4e1a\u4e0e\u7ad9\u957f\uff0c\u90e8\u7f72\u5feb\u901f\u3001\u529f\u80fd\u6210\u719f\uff08\u81ea\u52a8\u8bc1\u4e66\u3001WAF\u3001\u65e5\u5fd7\u5206\u6790\u3001DDoS\uff09\u3002\u4f46\u9700\u8981\u6ce8\u610f\u4f9b\u5e94\u5546\u7684 PoP \u8986\u76d6\u3001SLA\u3001\u5b9a\u4ef7\u7b56\u7565\uff08\u6309\u6d41\u91cf\u8ba1\u8d39\u6216\u6309\u8bf7\u6c42\u8ba1\u8d39\uff09\u4ee5\u53ca\u662f\u5426\u652f\u6301\u4e0e\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS \u7b49\u73b0\u6709\u57fa\u7840\u8bbe\u65bd\u65e0\u7f1d\u96c6\u6210\u3002<\/li>\n<\/ul>\n<h3>\u6027\u80fd\u4e0e\u534f\u8bae\u652f\u6301<\/h3>\n<p>\u9009\u62e9 CDN \u65f6\uff0c\u5e94\u4f18\u5148\u8003\u8651\u5bf9\u73b0\u4ee3\u534f\u8bae\u7684\u652f\u6301\uff1aHTTP\/2\u3001HTTP\/3\uff08QUIC\uff09\u3001TLS 1.3 \u4ee5\u53ca OCSP Stapling\u3002HTTP\/3 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