{"id":209605,"date":"2025-10-23T19:02:53","date_gmt":"2025-10-23T11:02:53","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209605\/"},"modified":"2025-10-23T19:02:55","modified_gmt":"2025-10-23T11:02:55","slug":"cdn-58","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209605\/","title":{"rendered":"CDN\u8d4b\u80fd\u7269\u8054\u7f51\uff1a\u5b9e\u6218\u52a0\u901f\u65b9\u6848\u4e0e\u843d\u5730\u6280\u5de7"},"content":{"rendered":"<p>\u968f\u7740\u7269\u8054\u7f51\uff08IoT\uff09\u8bbe\u5907\u6570\u91cf\u5448\u6307\u6570\u7ea7\u589e\u957f\uff0c\u5982\u4f55\u5728\u5168\u7403\u8303\u56f4\u5185\u4e3a\u6d77\u91cf\u7ec8\u7aef\u63d0\u4f9b\u4f4e\u5ef6\u8fdf\u3001\u53ef\u9760\u3001\u5b89\u5168\u7684\u6570\u636e\u5206\u53d1\u4e0e\u7ba1\u7406\uff0c\u6210\u4e3a\u8fd0\u8425\u8005\u548c\u5f00\u53d1\u8005\u5fc5\u987b\u9762\u5bf9\u7684\u6311\u6218\u3002\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\u5728\u4f20\u7edfWeb\u4e0e\u5a92\u4f53\u52a0\u901f\u9886\u57df\u5df2\u7ecf\u8bc1\u660e\u5176\u4ef7\u503c\uff0c\u800c\u5c06CDN\u80fd\u529b\u4e0e\u7269\u8054\u7f51\u573a\u666f\u6df1\u5ea6\u7ed3\u5408\uff0c\u5219\u80fd\u5728\u56fa\u4ef6\u5206\u53d1\u3001\u9065\u6d4b\u4e0a\u62a5\u3001OTA\u5347\u7ea7\u3001\u8fb9\u7f18\u8ba1\u7b97\u7b49\u65b9\u9762\u5b9e\u73b0\u663e\u8457\u4f18\u5316\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u7cfb\u7edf\u4ecb\u7ecdCDN\u8d4b\u80fd\u7269\u8054\u7f51\u7684\u539f\u7406\u3001\u5178\u578b\u5e94\u7528\u573a\u666f\u3001\u5173\u952e\u6280\u672f\u7ec6\u8282\u3001\u5b9e\u8df5\u843d\u5730\u6280\u5de7\u53ca\u9009\u8d2d\u5efa\u8bae\u3002<\/p>\n<h2>\u539f\u7406\u4e0e\u67b6\u6784\uff1aCDN\u5982\u4f55\u4e3a\u7269\u8054\u7f51\u201c\u52a0\u901f\u201d<\/h2>\n<p>\u4f20\u7edfCDN\u901a\u8fc7\u904d\u5e03\u5168\u7403\u7684\u8fb9\u7f18\u8282\u70b9\u7f13\u5b58\u9759\u6001\u5185\u5bb9\u3001\u5c31\u8fd1\u54cd\u5e94\u8bf7\u6c42\uff0c\u4ece\u800c\u964d\u4f4e\u5e26\u5bbd\u5360\u7528\u548c\u5ef6\u8fdf\u3002\u7269\u8054\u7f51\u573a\u666f\u7684\u7279\u70b9\u662f\u5927\u91cf\u8bbe\u5907\u5206\u5e03\u5e7f\u3001\u8bf7\u6c42\u7c7b\u578b\u591a\u6837\uff08\u56fa\u4ef6\u5305\u3001\u914d\u7f6e\u6587\u4ef6\u3001\u9065\u6d4b\u6570\u636e\u4e0a\u62a5\u3001\u957f\u8fde\u63a5\u6d88\u606f\uff09\uff0c\u56e0\u6b64\u5728\u67b6\u6784\u4e0a\u9700\u8981\u5c06CDN\u4e0eIoT\u5e73\u53f0\u3001\u6d88\u606f\u4e2d\u95f4\u4ef6\u3001\u8bbe\u5907\u7ba1\u7406\uff08MDM\uff09\u7cfb\u7edf\u534f\u540c\u3002<\/p>\n<h3>\u5173\u952e\u7ec4\u6210\u4e0e\u6570\u636e\u6d41<\/h3>\n<ul>\n<li>\u8fb9\u7f18\u8282\u70b9\uff08Edge 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requests\uff09\u4e0e\u65ad\u70b9\u7eed\u4f20\uff0c\u652f\u6301\u5927\u56fa\u4ef6\u5728\u4e0d\u7a33\u5b9a\u7f51\u7edc\u4e0b\u53ef\u9760\u4f20\u8f93\u3002<\/li>\n<\/ul>\n<h2>\u7269\u8054\u7f51\u5178\u578b\u5e94\u7528\u573a\u666f\u4e0eCDN\u7b56\u7565<\/h2>\n<h3>OTA\u56fa\u4ef6\u4e0e\u5927\u6587\u4ef6\u5206\u53d1<\/h3>\n<p>\u56fa\u4ef6\u5305\u901a\u5e38\u4e3a\u51e0\u5341MB\u5230\u6570\u767eMB\uff0c\u5206\u53d1\u5e76\u53d1\u91cf\u5927\u4e14\u5bf9\u5b8c\u6574\u6027\u8981\u6c42\u9ad8\u3002\u91c7\u7528CDN\u7f13\u5b58\u9759\u6001\u56fa\u4ef6\u53ef\u4ee5\u628a\u9ad8\u5e76\u53d1\u538b\u529b\u4eceOrigin\u8f6c\u79fb\u5230\u8fb9\u7f18\u8282\u70b9\u3002\u540c\u65f6\u7ed3\u5408\u5982\u4e0b\u624b\u6bb5\uff1a<\/p>\n<ul>\n<li>\u5206\u5757\u6821\u9a8c\u4e0e\u5dee\u5206\u66f4\u65b0\uff08binary diff\uff09\uff0c\u4ec5\u4f20\u8f93\u53d8\u5316\u90e8\u5206\uff0c\u660e\u663e\u51cf\u5c11\u5e26\u5bbd\u3002<\/li>\n<li>\u4f7f\u7528\u5e26\u7b7e\u540d\u7684\u77ed\u65f6URL\u6216\u65f6\u95f4\u6233+\u54c8\u5e0c\u9a8c\u8bc1\uff0c\u9632\u6b62\u76d7\u94fe\u4e0e\u672a\u6388\u6743\u4e0b\u8f7d\u3002<\/li>\n<li>\u8bbe\u5b9a\u5408\u7406\u7684Cache-Control\u548cETag\uff0c\u914d\u5408Cache 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0\/1\/2\uff09\u4e0e\u91cd\u8bd5\u7b56\u7565\uff0c\u7ed3\u5408CDN\u7684\u6d41\u91cf\u6574\u5f62\u4e0e\u9650\u901f\u529f\u80fd\u3002<\/li>\n<\/ul>\n<h3>\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u5373\u65f6\u54cd\u5e94<\/h3>\n<p>\u90e8\u5206\u573a\u666f\u9700\u8981\u5728\u7f51\u7edc\u6700\u9760\u8fd1\u8bbe\u5907\u5904\u6267\u884c\u903b\u8f91\uff08\u5982\u672c\u5730\u5f02\u5e38\u68c0\u6d4b\u3001\u5b9e\u65f6\u63a7\u5236\uff09\u3002\u73b0\u4ee3CDN\u652f\u6301Edge 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