{"id":209527,"date":"2025-10-23T16:23:00","date_gmt":"2025-10-23T08:23:00","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209527\/"},"modified":"2025-10-23T16:23:01","modified_gmt":"2025-10-23T08:23:01","slug":"cdn-24","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209527\/","title":{"rendered":"CDN\u591a\u8282\u70b9\u8c03\u5ea6\u63ed\u79d8\uff1a\u667a\u80fd\u7b56\u7565\u5982\u4f55\u63d0\u5347\u6027\u80fd\u4e0e\u53ef\u9760\u6027"},"content":{"rendered":"<p>\u5728\u5168\u7403\u4e92\u8054\u7f51\u670d\u52a1\u6108\u53d1\u4f9d\u8d56\u5206\u5e03\u5f0f\u67b6\u6784\u7684\u4eca\u5929\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u591a\u8282\u70b9\u8c03\u5ea6\u5df2\u7ecf\u6210\u4e3a\u63d0\u5347\u7f51\u7ad9\u6027\u80fd\u4e0e\u53ef\u9760\u6027\u7684\u5173\u952e\u6280\u672f\u3002\u672c\u6587\u5c06\u4ece\u6280\u672f\u539f\u7406\u3001\u5e94\u7528\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u53ca\u9009\u8d2d\u5efa\u8bae\u7b49\u65b9\u9762\uff0c\u6df1\u5165\u89e3\u6790\u591a\u8282\u70b9\u8c03\u5ea6\u7684\u5b9e\u73b0\u673a\u5236\u4e0e\u5e38\u89c1\u7b56\u7565\uff0c\u5e2e\u52a9\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u5728\u90e8\u7f72\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u5176\u4ed6\u6d77\u5916\u670d\u52a1\u5668\u65f6\uff0c\u505a\u51fa\u66f4\u7406\u6027\u7684\u67b6\u6784\u9009\u62e9\u3002<\/p>\n<h2>\u591a\u8282\u70b9\u8c03\u5ea6\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u591a\u8282\u70b9\u8c03\u5ea6\u7684\u6838\u5fc3\u76ee\u6807\u662f\u5c06\u7528\u6237\u8bf7\u6c42\u667a\u80fd\u5206\u914d\u5230\u6700\u5408\u9002\u7684\u8fb9\u7f18\u8282\u70b9\u6216\u4e2d\u8f6c\u8282\u70b9\uff0c\u4ece\u800c\u964d\u4f4e\u5ef6\u8fdf\u3001\u63d0\u9ad8\u541e\u5410\u548c\u589e\u5f3a\u53ef\u7528\u6027\u3002\u5e38\u89c1\u7684\u8c03\u5ea6\u7ef4\u5ea6\u5305\u62ec\u5730\u7406\u4f4d\u7f6e\u3001\u7f51\u7edc\u5ef6\u8fdf\uff08RTT\uff09\u3001\u5e26\u5bbd\u3001\u8282\u70b9\u8d1f\u8f7d\u3001\u5065\u5eb7\u72b6\u6001\u53ca\u6210\u672c\u7b56\u7565\u3002<\/p>\n<h3>\u8c03\u5ea6\u5c42\u7ea7\u4e0e\u5e38\u7528\u6280\u672f<\/h3>\n<ul>\n<li><strong>DNS 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RTT\u3001\u4e22\u5305\u7387\u548c\u53ef\u7528\u5e26\u5bbd\u6570\u636e\uff0c\u52a8\u6001\u5c06\u8bf7\u6c42\u5bfc\u5411\u5ef6\u8fdf\u6700\u4f4e\u6216\u5e26\u5bbd\u6700\u5bcc\u4f59\u7684\u8282\u70b9\u3002\u5bf9\u4e8e\u89c6\u9891\u5206\u53d1\u6216\u5927\u6587\u4ef6\u4e0b\u8f7d\uff0c\u8fd9\u7c7b\u7b56\u7565\u80fd\u663e\u8457\u63d0\u5347\u541e\u5410\u3002\u5b9e\u73b0\u65f6\u901a\u5e38\u9700\u8981\u914d\u5408\u8fde\u63a5\u590d\u7528\u548c\u957f\u8fde\u63a5\u4fdd\u6301\uff0c\u51cf\u5c11TCP\u63e1\u624b\u4e0eTLS\u5f00\u9500\u3002<\/p>\n<h3>\u6743\u91cd\u4e0e\u6d41\u91cf\u62bd\u6837<\/h3>\n<p>\u5728\u5cf0\u503c\u671f\u6216\u90e8\u5206\u8282\u70b9\u8fdb\u884c\u7070\u5ea6\u66f4\u65b0\u65f6\uff0c\u53ef\u4ee5\u6309\u6743\u91cd\u5206\u914d\u6d41\u91cf\uff0c\u652f\u6301\u9010\u6b65\u6269\u5bb9\u4e0eA\/B\u6d4b\u8bd5\u3002\u6743\u91cd\u53ef\u57fa\u4e8e\u8282\u70b9CPU\u3001\u5e26\u5bbd\u4ef7\u683c\uff08\u5982\u4f7f\u7528\u7f8e\u56fdVPS\u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\u8d39\u7528\u5dee\u5f02\uff09\u4e0eSLA\u81ea\u52a8\u8c03\u6574\u3002<\/p>\n<h3>\u5065\u5eb7\u68c0\u67e5\u4e0e\u81ea\u52a8\u56de\u9000<\/h3>\n<p>\u5065\u5eb7\u68c0\u67e5\u5206\u4e3a\u88ab\u52a8\uff08\u57fa\u4e8e\u8bf7\u6c42\u5931\u8d25\u7387\uff09\u4e0e\u4e3b\u52a8\uff08\u5b9a\u671fHTTP\/HTTPS\u63a2\u6d4b\u3001\u7aef\u53e3\u68c0\u6d4b\uff09\u3002\u5f53\u68c0\u6d4b\u5230\u8282\u70b9\u5f02\u5e38\u65f6\uff0c\u8c03\u5ea6\u7cfb\u7edf\u5e94\u80fd\u5feb\u901f\u5254\u9664\u5e76\u628a\u6d41\u91cf\u5207\u81f3\u5065\u5eb7\u8282\u70b9\uff0c\u6700\u5927\u5316\u53ef\u7528\u6027\u3002<\/p>\n<h3>\u5730\u7406\u4e0e\u6cd5\u5f8b\u5408\u89c4\u7b56\u7565<\/h3>\n<p>\u90e8\u5206\u4e1a\u52a1\u9700\u8981\u5c06\u6570\u636e\u7559\u5728\u7279\u5b9a\u533a\u57df\uff08\u5982\u4f7f\u7528\u9999\u6e2f\u670d\u52a1\u5668\u5904\u7406\u9999\u6e2f\u7528\u6237\u6570\u636e\uff09\uff0c\u8fd9\u65f6\u8c03\u5ea6\u9700\u8981\u7ed3\u5408\u5730\u7406\u89c4\u5219\u548c\u5408\u89c4\u7b56\u7565\uff0c\u4fdd\u8bc1\u6d41\u91cf\u4e0d\u8d8a\u754c\uff0c\u540c\u65f6\u517c\u987e\u6027\u80fd\u3002<\/p>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u5b9e\u8df5\u6848\u4f8b<\/h2>\n<p>\u591a\u8282\u70b9\u8c03\u5ea6\u9002\u7528\u4e8e\u5e7f\u6cdb\u573a\u666f\uff0c\u4ece\u9759\u6001\u5185\u5bb9\u52a0\u901f\u5230\u4e91\u539f\u751f\u5fae\u670d\u52a1\u7684\u8fb9\u7f18\u90e8\u7f72\uff1a<\/p>\n<ul>\n<li>\u9759\u6001\u8d44\u6e90 CDN\uff1a\u9488\u5bf9\u7f51\u7ad9\u9759\u6001\u6587\u4ef6\uff08JS\/CSS\/\u56fe\u7247\uff09\u4f7f\u7528Anycast \u4e0e\u8fb9\u7f18\u7f13\u5b58\uff0c\u7ed3\u5408\u4f4eTTL\u7684GeoDNS\u5b9e\u73b0\u5feb\u901f\u5207\u6362\u3002<\/li>\n<li>\u89c6\u9891\u76f4\u64ad\u4e0e\u70b9\u64ad\uff1a\u7ed3\u5408\u5ef6\u8fdf\u5bfc\u5411\u7b56\u7565\u4e0e\u5c31\u8fd1\u56de\u6e90\uff08origin pull\uff09\uff0c\u5e76\u5728\u9ad8\u5e76\u53d1\u65f6\u4f7f\u7528\u6d41\u91cf\u6743\u91cd\u7b56\u7565\u5206\u6563\u538b\u529b\u3002<\/li>\n<li>\u8de8\u5883\u7535\u5546\u4e0e\u591a\u8bed\u8a00\u7ad9\u70b9\uff1a\u6839\u636e\u7528\u6237\u5730\u7406\u3001\u8bed\u8a00\u53ca\u7ed3\u7b97\u533a\u57df\u8fdb\u884c\u8def\u7531\uff0c\u5fc5\u8981\u65f6\u5c06\u4f1a\u8bdd\u7c98\u6027\u7ef4\u6301\u5728\u7279\u5b9a\u533a\u57df\u670d\u52a1\u5668\uff0c\u5982\u65e5\u672c\u670d\u52a1\u5668\u6216\u97e9\u56fd\u670d\u52a1\u5668\u3002<\/li>\n<li>\u4f01\u4e1aSaaS 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testing\uff09\uff0c\u9a8c\u8bc1DNS\u5207\u6362\u3001BGP\u6536\u655b\u3001\u8282\u70b9\u5254\u9664\u4e0e\u56de\u6e90\u884c\u4e3a\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>CDN 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rel=\"noopener\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5168\u7403\u5206\u5e03\u5f0f\u65f6\u4ee3\uff0cCDN\u591a\u8282\u70b9\u8c03\u5ea6\u5df2\u6210\u4e3a\u63d0\u5347\u7f51\u7ad9\u6027\u80fd\u4e0e\u53ef\u9760\u6027\u7684\u5173\u952e\u5229\u5668\uff0c\u80fd\u5c06\u7528\u6237\u8bf7\u6c42\u667a\u80fd\u8def\u7531\u5230\u6700\u4f18\u8fb9\u7f18\u6216\u4e2d\u8f6c\u8282\u70b9\uff0c\u663e\u8457\u964d\u4f4e\u5ef6\u8fdf\u5e76\u63d0\u9ad8\u53ef\u7528\u6027\u3002\u672c\u6587\u5c06\u62c6\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u3001\u5e38\u89c1\u7b56\u7565\u4e0e\u9009\u8d2d\u5efa\u8bae\uff0c\u5e2e\u52a9\u7ad9\u957f\u4e0e\u4f01\u4e1a\u5728\u90e8\u7f72\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u5176\u4ed6\u6d77\u5916\u8282\u70b9\u65f6\u505a\u51fa\u66f4\u7406\u6027\u7684\u67b6\u6784\u51b3\u7b56\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4928],"tags":[2964,2970,2968,2967,2969,2965,2842,2966],"class_list":{"0":"post-209527","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-4928","7":"tag-cdn","9":"tag-geodnsdns","10":"tag-2967","11":"tag-rtt","12":"tag-2965","13":"tag-2842","14":"tag-2966"},"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/209527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=209527"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/209527\/revisions"}],"predecessor-version":[{"id":209528,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/209527\/revisions\/209528"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=209527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=209527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=209527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}