{"id":210157,"date":"2025-10-24T07:00:18","date_gmt":"2025-10-23T23:00:18","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210157\/"},"modified":"2025-10-24T07:00:19","modified_gmt":"2025-10-23T23:00:19","slug":"cdn-301","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210157\/","title":{"rendered":"CDN\u8fb9\u7f18\u8282\u70b9\u667a\u80fd\u5316\u8c03\u5ea6\uff1a\u5b9e\u73b0\u66f4\u5feb\u3001\u66f4\u7a33\u7684\u5185\u5bb9\u4ea4\u4ed8"},"content":{"rendered":"<p>\u5728\u5f53\u4eca\u4ee5\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u4e3a\u6838\u5fc3\u7684\u4e92\u8054\u7f51\u670d\u52a1\u4e2d\uff0c\u5185\u5bb9\u4ea4\u4ed8\u7f51\u7edc\uff08CDN\uff09\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\u3002\u968f\u7740\u7528\u6237\u5206\u5e03\u66f4\u52a0\u5168\u7403\u5316\uff0c\u5c24\u5176\u662f\u4e9a\u592a\u4e0e\u5317\u7f8e\u7b49\u91cd\u8981\u8282\u70b9\uff0c\u4f20\u7edf\u7684\u9759\u6001\u8c03\u5ea6\u7b56\u7565\u5df2\u96be\u4ee5\u6ee1\u8db3\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u548c\u7f51\u7edc\u6ce2\u52a8\u4e0b\u7684\u4f53\u9a8c\u8981\u6c42\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u901a\u8fc7\u8fb9\u7f18\u8282\u70b9\u7684\u667a\u80fd\u5316\u8c03\u5ea6\u7b56\u7565\uff0c\u5982\u4f55\u5b9e\u73b0\u66f4\u5feb\u3001\u66f4\u7a33\u5b9a\u7684\u5185\u5bb9\u5206\u53d1\uff0c\u5e2e\u52a9\u7ad9\u957f\u3001\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u5728\u9009\u62e9\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u3001\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\u7b49\u914d\u5957\u8d44\u6e90\u65f6\u505a\u51fa\u66f4\u660e\u667a\u7684\u67b6\u6784\u8bbe\u8ba1\u3002<\/p>\n<h2>\u8fb9\u7f18\u667a\u80fd\u8c03\u5ea6\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u8fb9\u7f18\u8282\u70b9\u667a\u80fd\u5316\u8c03\u5ea6\u7684\u6838\u5fc3\u5728\u4e8e\u5b9e\u65f6\u611f\u77e5\u3001\u51b3\u7b56\u548c\u6267\u884c\u4e09\u5927\u73af\u8282\uff1a<\/p>\n<ul>\n<li><strong>\u5b9e\u65f6\u611f\u77e5\uff1a<\/strong>\u901a\u8fc7\u4e3b\u52a8\u63a2\u6d4b\uff08\u4e3b\u52a8\u68c0\u6d4b\u63a2\u9488\u3001ICMP\/TCP\/HTTP\u63a2\u6d4b\uff09\u4e0e\u88ab\u52a8\u76d1\u6d4b\uff08\u6d41\u91cf\u91c7\u6837\u3001\u65e5\u5fd7\u4e0e\u7528\u6237\u7aef\u57cb\u70b9\uff09\u76f8\u7ed3\u5408\uff0c\u91c7\u96c6\u6bcf\u4e2a\u8fb9\u7f18\u8282\u70b9\u4e0e\u56de\u6e90\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u7f51\u7edc\u8d28\u91cf\uff08RTT\u3001\u4e22\u5305\u7387\u3001\u6296\u52a8\uff09\u3001\u8282\u70b9\u8d1f\u8f7d\uff08CPU\u3001\u5185\u5b58\u3001\u5e76\u53d1\u8fde\u63a5\u6570\uff09\u4ee5\u53ca\u5185\u5bb9\u547d\u4e2d\u7387\u7b49\u5173\u952e\u6307\u6807\u3002<\/li>\n<li><strong>\u667a\u80fd\u51b3\u7b56\uff1a<\/strong>\u57fa\u4e8e\u91c7\u96c6\u6570\u636e\uff0c\u4f7f\u7528\u591a\u7ef4\u5ea6\u7b56\u7565\u5f15\u64ce\u8fdb\u884c\u8c03\u5ea6\u51b3\u7b56\u3002\u5e38\u89c1\u65b9\u6cd5\u5305\u62ec\u52a0\u6743\u6700\u5c0f\u5ef6\u8fdf\u3001\u6700\u5c0f\u8d1f\u8f7d\u4f18\u5148\u3001\u6700\u8fd1\u8bbf\u95ee\u8def\u5f84\u4f18\u5148\u4ee5\u53ca\u66f4\u9ad8\u7ea7\u7684\u673a\u5668\u5b66\u4e60\u6a21\u578b\uff08\u4f8b\u5982\u5f3a\u5316\u5b66\u4e60\u3001\u5728\u7ebf\u5b66\u4e60\uff09\u6765\u9884\u6d4b\u77ed\u671f\u5185\u7684\u7f51\u7edc\u6ce2\u52a8\u5e76\u8fdb\u884c\u9884\u8c03\u5ea6\u3002<\/li>\n<li><strong>\u5feb\u901f\u6267\u884c\uff1a<\/strong>\u8c03\u5ea6\u51b3\u7b56\u901a\u8fc7\u8def\u7531\u5c42\uff08DNS\u3001Anycast\u3001BGP\u667a\u80fd\u8def\u7531\uff09\u3001\u5e94\u7528\u5c42\uff08HTTP\u91cd\u5b9a\u5411\u3001\u8fb9\u7f18\u7f13\u5b58\u63a7\u5236\uff09\u4ee5\u53ca\u8fb9\u7f18\u8d1f\u8f7d\u5747\u8861\u5668\u5373\u65f6\u4e0b\u53d1\u5230\u8282\u70b9\uff0c\u786e\u4fdd\u8bf7\u6c42\u5728\u6beb\u79d2\u7ea7\u522b\u88ab\u5bfc\u5411\u6700\u4f18\u8282\u70b9\u3002<\/li>\n<\/ul>\n<h3>\u5173\u952e\u6280\u672f\u7ec4\u4ef6<\/h3>\n<ul>\n<li>\u63a2\u6d4b\u7cfb\u7edf\uff1a\u5206\u5e03\u5f0f\u63a2\u6d4b\u5668\u90e8\u7f72\u5728\u6838\u5fc3\u57ce\u5e02\u8282\u70b9\uff0c\u8986\u76d6\u9999\u6e2f\u3001\u4e1c\u4eac\u3001\u9996\u5c14\u3001\u65b0\u52a0\u5761\u3001\u6d1b\u6749\u77f6\u7b49\u5730\uff0c\u4fdd\u8bc1\u7f51\u7edc\u8986\u76d6\u4e0e\u51c6\u786e\u6027\u3002<\/li>\n<li>\u5b9e\u65f6\u6570\u636e\u6e56\u4e0e\u6d41\u5904\u7406\uff1a\u4f7f\u7528Kafka\u3001Flink\u7b49\u7ec4\u4ef6\u5bf9\u63a2\u6d4b\u4e0e\u65e5\u5fd7\u8fdb\u884c\u6d41\u5904\u7406\uff0c\u5b9e\u73b0\u5206\u949f\u7ea7\u751a\u81f3\u79d2\u7ea7\u7684\u6570\u636e\u66f4\u65b0\u3002<\/li>\n<li>\u7b56\u7565\u5f15\u64ce\u4e0e\u6a21\u578b\uff1a\u6df7\u5408\u89c4\u5219\u5f15\u64ce+\u6a21\u578b\u9884\u6d4b\uff0c\u89c4\u5219\u7528\u4e8e\u5feb\u901f\u54cd\u5e94\uff08\u5982\u8282\u70b9\u5b95\u673a\uff09\uff0c\u6a21\u578b\u7528\u4e8e\u590d\u6742\u6d41\u91cf\u6a21\u5f0f\u9884\u6d4b\u3002<\/li>\n<li>\u63a7\u5236\u9762\u4e0e\u6570\u636e\u9762\u5206\u79bb\uff1a\u901a\u8fc7\u96c6\u4e2d\u63a7\u5236\u9762\u4e0b\u53d1\u7b56\u7565\uff0c\u8fb9\u7f18\u8282\u70b9\u672c\u5730\u6267\u884c\u4ee5\u964d\u4f4e\u8c03\u5ea6\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f<\/h2>\n<p>\u8fb9\u7f18\u667a\u80fd\u8c03\u5ea6\u9002\u7528\u4e8e\u591a\u79cd\u4e1a\u52a1\u573a\u666f\uff0c\u4ee5\u4e0b\u5217\u4e3e\u5178\u578b\u6848\u4f8b\u5e76\u8bf4\u660e\u8bbe\u8ba1\u8981\u70b9\uff1a<\/p>\n<h3>\u9759\u6001\u8d44\u6e90\u52a0\u901f\uff08\u56fe\u7247\u3001\u89c6\u9891\u3001\u8f6f\u4ef6\u5206\u53d1\uff09<\/h3>\n<ul>\n<li>\u95ee\u9898\uff1a\u5927\u6587\u4ef6\u5bf9\u5e26\u5bbd\u4e0e\u7f13\u5b58\u6548\u7387\u8981\u6c42\u9ad8\uff0c\u5355\u4e00\u8282\u70b9\u7a81\u53d1\u6d41\u91cf\u6613\u5bfc\u81f4\u6296\u52a8\u3002<\/li>\n<li>\u8bbe\u8ba1\u8981\u70b9\uff1a\u91c7\u7528\u591a\u8282\u70b9\u5206\u7247\u7b56\u7565\u4e0e\u5c31\u8fd1\u56de\u6e90\u63a7\u6d41\uff0c\u7ed3\u5408\u8fb9\u7f18\u5b58\u50a8\u9884\u70ed\u4e0e\u5206\u6bb5\u4f20\u8f93\uff08Range\u8bf7\u6c42\uff09\u63d0\u5347\u547d\u4e2d\u7387\u4e0e\u4f20\u8f93\u6548\u7387\u3002<\/li>\n<\/ul>\n<h3>\u52a8\u6001\u5185\u5bb9\u4e0eAPI\u52a0\u901f<\/h3>\n<ul>\n<li>\u95ee\u9898\uff1a\u52a8\u6001\u8bf7\u6c42\u5bf9\u4e00\u81f4\u6027\u4e0e\u56de\u6e90\u5ef6\u8fdf\u654f\u611f\uff0c\u4f20\u7edfCDN\u7f13\u5b58\u6548\u679c\u6709\u9650\u3002<\/li>\n<li>\u8bbe\u8ba1\u8981\u70b9\uff1a\u5728\u8fb9\u7f18\u90e8\u7f72\u8f7b\u91cf\u7ea7\u8ba1\u7b97\uff08Edge Functions \/ WASM\uff09\uff0c\u5c06\u5e38\u89c1\u903b\u8f91\u4e0b\u6c89\uff0c\u5b9e\u73b0\u8bf7\u6c42\u8fd1\u7aef\u54cd\u5e94\u5e76\u51cf\u5c11\u4e0e\u4e3b\u7ad9\uff08\u5982\u90e8\u7f72\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u4e0a\u7684\u56de\u6e90\uff09\u4e4b\u95f4\u7684\u5f80\u8fd4\u3002<\/li>\n<\/ul>\n<h3>\u5168\u7403\u8d1f\u8f7d\u5747\u8861\u4e0e\u5bb9\u707e<\/h3>\n<ul>\n<li>\u95ee\u9898\uff1a\u8de8\u5730\u57df\u6d41\u91cf\u5206\u914d\u9700\u517c\u987e\u6210\u672c\u3001\u5ef6\u8fdf\u4e0e\u53ef\u7528\u6027\u3002<\/li>\n<li>\u8bbe\u8ba1\u8981\u70b9\uff1a\u7ed3\u5408DNS + Anycast + BGP\u7b56\u7565\u5b9e\u73b0\u591a\u5c42\u8def\u7531\u8c03\u6574\uff1b\u5f53\u67d0\u4e00\u533a\u57df\uff08\u5982\u65e5\u672c\u670d\u52a1\u5668\u6216\u97e9\u56fd\u670d\u52a1\u5668\uff09\u51fa\u73b0\u5f02\u5e38\u65f6\uff0c\u667a\u80fd\u8c03\u5ea6\u53ef\u5c06\u6d41\u91cf\u5e73\u6ed1\u5207\u6362\u5230\u65b0\u52a0\u5761\u670d\u52a1\u5668\u6216\u9999\u6e2fVPS\u7b49\u66ff\u4ee3\u8d44\u6e90\u4ee5\u4fdd\u8bc1\u4e1a\u52a1\u8fde\u7eed\u6027\u3002<\/li>\n<\/ul>\n<h2>\u4f18\u52bf\u4e0e\u4f20\u7edf\u7b56\u7565\u5bf9\u6bd4<\/h2>\n<p>\u5c06\u667a\u80fd\u5316\u8c03\u5ea6\u4e0e\u4f20\u7edf\u9759\u6001\u6216\u57fa\u4e8e\u5730\u7406\u4f4d\u7f6e\u7684\u8c03\u5ea6\u65b9\u5f0f\u5bf9\u6bd4\uff0c\u53ef\u4ee5\u4ece\u591a\u4e2a\u7ef4\u5ea6\u770b\u5230\u663e\u8457\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li><strong>\u5ef6\u8fdf\u4e0e\u7a33\u5b9a\u6027\uff1a<\/strong>\u4f20\u7edf\u6309\u5730\u7406\u6216DNS\u89e3\u6790\u5c31\u8fd1\u7b56\u7565\u672a\u8003\u8651\u5b9e\u65f6\u94fe\u8def\u8d28\u91cf\uff0c\u6613\u53d7\u8de8\u56fd\u94fe\u8def\u6ce2\u52a8\u5f71\u54cd\u3002\u667a\u80fd\u8c03\u5ea6\u57fa\u4e8e\u5b9e\u65f6\u7f51\u7edc\u6307\u6807\uff0c\u80fd\u663e\u8457\u964d\u4f4e\u5e73\u5747\u5ef6\u8fdf\u5e76\u51cf\u5c11\u6296\u52a8\u3002<\/li>\n<li><strong>\u547d\u4e2d\u7387\u4e0e\u5e26\u5bbd\u6210\u672c\uff1a<\/strong>\u901a\u8fc7\u9884\u6d4b\u6a21\u578b\u4f18\u5316\u7f13\u5b58\u9884\u70ed\u4e0e\u6dd8\u6c70\u7b56\u7565\uff0c\u63d0\u9ad8\u8fb9\u7f18\u547d\u4e2d\u7387\uff0c\u51cf\u5c11\u56de\u6e90\u5e26\u5bbd\u6d88\u8017\uff0c\u4ece\u800c\u964d\u4f4e\u5728\u6d77\u5916\u670d\u52a1\u5668\u6216\u7f8e\u56fdVPS\u56de\u6e90\u65f6\u7684\u6d41\u91cf\u6210\u672c\u3002<\/li>\n<li><strong>\u5f39\u6027\u6269\u5c55\uff1a<\/strong>\u667a\u80fd\u8c03\u5ea6\u80fd\u5728\u6d41\u91cf\u7a81\u589e\u573a\u666f\u81ea\u52a8\u5c06\u8bf7\u6c42\u5206\u6563\u5230\u66f4\u591a\u8fb9\u7f18\u8282\u70b9\uff0c\u907f\u514d\u5355\u70b9\u8fc7\u8f7d\uff0c\u63d0\u5347\u6297DDoS\u4e0e\u7a81\u53d1\u6d41\u91cf\u5904\u7406\u80fd\u529b\u3002<\/li>\n<li><strong>\u7528\u6237\u4f53\u9a8c\u4e00\u81f4\u6027\uff1a<\/strong>\u5bf9\u8de8\u56fd\u7528\u6237\uff08\u4f8b\u5982\u8bbf\u95ee\u4f4d\u4e8e\u9999\u6e2fVPS\u7684\u4e9a\u6d32\u7528\u6237\u6216\u4f4d\u4e8e\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u5317\u7f8e\u7528\u6237\uff09\u63d0\u4f9b\u66f4\u5e73\u6ed1\u4e00\u81f4\u7684\u4f53\u9a8c\uff0c\u51cf\u5c11\u56e0\u94fe\u8def\u5dee\u5f02\u9020\u6210\u7684\u4f53\u9a8c\u65ad\u5c42\u3002<\/li>\n<\/ul>\n<h2>\u5de5\u7a0b\u5b9e\u73b0\u4e0e\u6027\u80fd\u4f18\u5316\u8981\u70b9<\/h2>\n<p>\u5728\u5b9e\u9645\u843d\u5730\u8fc7\u7a0b\u4e2d\uff0c\u6709\u82e5\u5e72\u5de5\u7a0b\u7ec6\u8282\u4f1a\u76f4\u63a5\u5f71\u54cd\u6548\u679c\uff1a<\/p>\n<h3>\u63a2\u6d4b\u9891\u7387\u4e0e\u6210\u672c\u6743\u8861<\/h3>\n<p>\u63a2\u6d4b\u8d8a\u9891\u7e41\u80fd\u591f\u66f4\u5feb\u611f\u77e5\u7f51\u7edc\u53d8\u5316\uff0c\u4f46\u540c\u65f6\u4f1a\u589e\u52a0\u63a2\u6d4b\u6d41\u91cf\u4e0e\u8ba1\u7b97\u6210\u672c\u3002\u901a\u5e38\u5efa\u8bae\u91c7\u7528\u5206\u5c42\u63a2\u6d4b\u7b56\u7565\uff1a\u5173\u952e\u94fe\u8def\u9ad8\u9891\u63a2\u6d4b\uff08\u79d2\u7ea7\uff09\u3001\u666e\u901a\u94fe\u8def\u4e2d\u9891\uff08\u5206\u949f\u7ea7\uff09\u3001\u5386\u53f2\u7a33\u5b9a\u94fe\u8def\u4f4e\u9891\uff08\u5c0f\u65f6\u7ea7\uff09\u3002<\/p>\n<h3>\u5197\u4f59\u4e0e\u5feb\u901f\u56de\u9000\u673a\u5236<\/h3>\n<p>\u4efb\u4f55\u81ea\u52a8\u5316\u7b56\u7565\u90fd\u9700\u5177\u5907\u5feb\u901f\u56de\u9000\u80fd\u529b\u3002\u5b9e\u73b0\u4e0a\u5e94\u5728\u7b56\u7565\u5f15\u64ce\u4e2d\u52a0\u5165\u7194\u65ad\u673a\u5236\u3001\u51b7\u542f\u52a8\u4fdd\u62a4\u4e0e\u7070\u5ea6\u4e0b\u53d1\uff0c\u4ee5\u4fdd\u8bc1\u5728\u7b56\u7565\u5f02\u5e38\u65f6\u80fd\u8fc5\u901f\u56de\u5230\u5df2\u9a8c\u8bc1\u7684\u4fdd\u5b88\u7b56\u7565\u3002<\/p>\n<h3>\u8fb9\u7f18\u7f13\u5b58\u7b56\u7565\u7ec6\u5316<\/h3>\n<p>\u5bf9\u4e8e\u4e0d\u540c\u5185\u5bb9\u7c7b\u578b\u91c7\u7528\u4e0d\u540c\u7f13\u5b58\u7b56\u7565\uff1a\u9759\u6001\u8d44\u6e90\u4f7f\u7528\u957fTTL+\u4e3b\u52a8\u5237\u65b0\uff0c\u9891\u7e41\u53d8\u66f4\u5185\u5bb9\u4f7f\u7528\u77edTTL\u6216\u57fa\u4e8eEtag\u7684\u9a8c\u8bc1\uff1b\u5bf9\u4e8e\u5927\u6587\u4ef6\uff0c\u7ed3\u5408\u5206\u5757\u7f13\u5b58\u4e0eCDN\u8fb9\u7f18\u52a0\u901f\u534f\u8bae\uff08\u5982HTTP\/2\u3001QUIC\uff09\u63d0\u5347\u5e76\u53d1\u4e0b\u8f7d\u6548\u7387\u3002<\/p>\n<h3>\u5b89\u5168\u4e0e\u5408\u89c4\u6027<\/h3>\n<p>\u8fb9\u7f18\u8282\u70b9\u5206\u5e03\u5e7f\u6cdb\u65f6\u9700\u8003\u8651\u9075\u5b88\u5730\u533a\u6027\u5408\u89c4\u8981\u6c42\uff08\u4f8b\u5982\u6570\u636e\u4e3b\u6743\uff09\uff0c\u5e76\u5728\u8bbf\u95ee\u63a7\u5236\u3001\u8bc1\u4e66\u7ba1\u7406\u4e0eDDoS\u9632\u62a4\u4e0a\u6295\u5165\u66f4\u591a\u81ea\u52a8\u5316\u8fd0\u7ef4\u80fd\u529b\u3002<\/p>\n<h2>\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae<\/h2>\n<p>\u5728\u9009\u62e9CDN\u4e0e\u914d\u5957\u670d\u52a1\u5668\u8d44\u6e90\u65f6\uff0c\u5efa\u8bae\u4ece\u4ee5\u4e0b\u7ef4\u5ea6\u8bc4\u4f30\uff1a<\/p>\n<ul>\n<li><strong>\u8282\u70b9\u8986\u76d6\u4e0e\u7cbe\u9009POP\uff1a<\/strong>\u5173\u6ce8CDN\u8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