{"id":210031,"date":"2025-10-24T04:18:26","date_gmt":"2025-10-23T20:18:26","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210031\/"},"modified":"2025-10-24T04:18:27","modified_gmt":"2025-10-23T20:18:27","slug":"cdn-249","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210031\/","title":{"rendered":"\u63ed\u79d8CDN\u65e5\u5fd7\uff1a\u8fd0\u7ef4\u6545\u969c\u5b9a\u4f4d\u4e0e\u6027\u80fd\u4f18\u5316\u7684\u5229\u5668"},"content":{"rendered":"<p>\u5728\u4e92\u8054\u7f51\u4ea4\u4ed8\u67b6\u6784\u4e2d\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u4e0d\u4ec5\u80fd\u663e\u8457\u63d0\u5347\u5168\u5c40\u8bbf\u95ee\u6027\u80fd\uff0c\u8fd8\u80fd\u901a\u8fc7\u8be6\u5c3d\u7684\u65e5\u5fd7\u6570\u636e\u4e3a\u8fd0\u7ef4\u6545\u969c\u5b9a\u4f4d\u4e0e\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u51b3\u7b56\u4f9d\u636e\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u6df1\u5165\u89e3\u6790CDN\u65e5\u5fd7\u7684\u7ed3\u6784\u4e0e\u5b9e\u8df5\u5e94\u7528\uff0c\u6db5\u76d6\u65e5\u5fd7\u91c7\u96c6\u3001\u5b9e\u65f6\u5206\u6790\u3001\u6545\u969c\u6392\u67e5\u6848\u4f8b\u4e0e\u9009\u8d2d\u5efa\u8bae\uff0c\u5e2e\u52a9\u8bfb\u8005\u628a\u63e1\u5982\u4f55\u628a\u65e5\u5fd7\u53d8\u6210\u53ef\u64cd\u4f5c\u7684\u8fd0\u7ef4\u5229\u5668\u3002<\/p>\n<h2>CDN\u65e5\u5fd7\u7684\u57fa\u672c\u539f\u7406\u4e0e\u5e38\u89c1\u5b57\u6bb5<\/h2>\n<p>CDN\u65e5\u5fd7\u662f\u8fb9\u7f18\u8282\u70b9\u6216\u4e2d\u95f4\u7f13\u5b58\u8bbe\u5907\u8bb0\u5f55\u7684\u8bf7\u6c42\/\u54cd\u5e94\u5143\u6570\u636e\u3002\u4e0d\u540c\u5382\u5546\u8f93\u51fa\u683c\u5f0f\u7565\u6709\u5dee\u5f02\uff0c\u4f46\u6838\u5fc3\u5b57\u6bb5\u5927\u540c\u5c0f\u5f02\u3002\u5e38\u89c1\u65e5\u5fd7\u5b57\u6bb5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u65f6\u95f4\u6233\uff08timestamp\uff09<\/strong>\uff1a\u901a\u5e38\u4e3aUTC\u6216\u672c\u5730\u65f6\u95f4\uff0c\u7cbe\u786e\u5230\u6beb\u79d2\u6216\u5fae\u79d2\uff0c\u4fbf\u4e8e\u5b9a\u4f4d\u65f6\u5e8f\u95ee\u9898\u3002<\/li>\n<li><strong>\u5ba2\u6237\u7aefIP\uff08client_ip\uff09<\/strong>\u4e0e\u5730\u7406\u4f4d\u7f6e\u4fe1\u606f\uff08geo\uff09<\/li>\n<li><strong>\u8bf7\u6c42\u65b9\u6cd5\u4e0eURL\uff08method\u3001url\uff09<\/strong>\uff0c\u5305\u542b\u67e5\u8be2\u53c2\u6570<\/li>\n<li><strong>\u54cd\u5e94\u72b6\u6001\u7801\uff08status\uff09<\/strong>\uff1a2xx\/3xx\/4xx\/5xx\uff0c\u5b9a\u4f4d\u9519\u8bef\u7c7b\u578b\u7684\u91cd\u8981\u7ebf\u7d22<\/li>\n<li><strong>\u54cd\u5e94\u65f6\u95f4\uff08edge_duration\/origin_duration\uff09<\/strong>\uff1a\u8fb9\u7f18\u5904\u7406\u65f6\u95f4\u4e0e\u56de\u6e90\u65f6\u95f4\u53ef\u533a\u5206\u7f13\u5b58\u95ee\u9898\u4e0e\u6e90\u7ad9\u6027\u80fd\u95ee\u9898<\/li>\n<li><strong>\u7f13\u5b58\u72b6\u6001\uff08cache_status\uff09<\/strong>\uff1aHIT\u3001MISS\u3001EXPIRED\u3001REFRESH\u7b49\uff0c\u76f4\u63a5\u53cd\u6620\u7f13\u5b58\u7b56\u7565\u6548\u679c<\/li>\n<li><strong>\u4e0a\u6e38\u4fe1\u606f\uff08upstream_host\/upstream_status\uff09<\/strong>\uff1a\u56de\u6e90\u4e3b\u673a\u3001\u7aef\u53e3\u4e0e\u72b6\u6001\u7801<\/li>\n<li><strong>TLS\/SSL\u4fe1\u606f<\/strong>\uff1a\u52a0\u5bc6\u5957\u4ef6\u3001\u63e1\u624b\u8017\u65f6\uff0c\u7528\u4e8e\u6392\u67e5HTTPS\u76f8\u5173\u5ef6\u8fdf\u6216\u8bc1\u4e66\u95ee\u9898<\/li>\n<li><strong>\u8bf7\u6c42\u5934\u4e0e\u54cd\u5e94\u5934\uff08headers\uff09<\/strong>\uff1a\u5982Host\u3001Referer\u3001User-Agent\u3001Set-Cookie\u3001Cache-Control\u7b49<\/li>\n<li><strong>\u8bf7\u6c42\u5927\u5c0f\u4e0e\u54cd\u5e94\u5927\u5c0f\uff08request_bytes\u3001response_bytes\uff09<\/strong>\uff1a\u5e26\u5bbd\u4e0e\u6d41\u91cf\u8ba1\u91cf\u57fa\u7840<\/li>\n<li><strong>\u8ddf\u8e2aID\/\u8bf7\u6c42ID\uff08request_id\/trace_id\uff09<\/strong>\uff1a\u7528\u4e8e\u94fe\u8def\u8ffd\u8e2a\u4e0e\u5206\u5e03\u5f0f\u8c03\u8bd5<\/li>\n<\/ul>\n<h3>\u65e5\u5fd7\u683c\u5f0f\u793a\u4f8b\uff08\u4f2aJSON\/Access\uff09<\/h3>\n<p>\u5e38\u89c1\u7684\u65e5\u5fd7\u884c\u53ef\u80fd\u4e3aJSON\u6216\u7a7a\u683c\u5206\u9694\u7684\u5b57\u6bb5\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>{&#8220;time&#8221;:&#8221;2025-10-23T08:12:34.123Z&#8221;,&#8221;client_ip&#8221;:&#8221;203.0.113.5&#8243;,&#8221;method&#8221;:&#8221;GET&#8221;,&#8221;url&#8221;:&#8221;\/assets\/app.js&#8221;,&#8221;status&#8221;:200,&#8221;cache_status&#8221;:&#8221;HIT&#8221;,&#8221;edge_ms&#8221;:3,&#8221;origin_ms&#8221;:0,&#8221;bytes&#8221;:12456,&#8221;user_agent&#8221;:&#8221;Mozilla\/5.0&#8243;,&#8221;request_id&#8221;:&#8221;abc-123&#8243;}<\/p>\n<h2>\u65e5\u5fd7\u91c7\u96c6\u4e0e\u805a\u5408\u5b9e\u8df5<\/h2>\n<p>\u628a\u5206\u5e03\u5728\u5168\u7403\u7684\u8fb9\u7f18\u8282\u70b9\u65e5\u5fd7\u53d8\u4e3a\u53ef\u67e5\u8be2\u3001\u53ef\u544a\u8b66\u7684\u6570\u636e\u6d41\uff0c\u662f\u843d\u5730\u4ef7\u503c\u7684\u5173\u952e\u6b65\u9aa4\u3002<\/p>\n<h3>\u5b9e\u65f6\u91c7\u96c6\u65b9\u5f0f<\/h3>\n<ul>\n<li>\u8fb9\u7f18\u8282\u70b9\u76f4\u63a5\u63a8\u9001\u5230\u96c6\u4e2d\u7684\u65e5\u5fd7\u7ba1\u9053\uff08\u4f8b\u5982Kafka\u3001Fluentd\/Fluent 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Workers\uff09\u4ee5\u51cf\u5c11\u56de\u6e90\u8bf7\u6c42\uff0c\u964d\u4f4eorigin_ms\u3002<\/li>\n<li>\u5206\u533a\u57df\u90e8\u7f72\u56de\u6e90\uff1a\u5bf9\u5173\u952e\u7528\u6237\u7fa4\uff08\u5982\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u97e9\u3001\u65b0\u52a0\u5761\uff09\u91c7\u7528\u6700\u8fd1\u56de\u6e90\u6216\u591a\u6d3b\u56de\u6e90\uff0c\u51cf\u5c11\u8de8\u6d0b\u5ef6\u8fdf\u3002<\/li>\n<li>\u538b\u7f29\u4e0e\u5206\u7247\u4f20\u8f93\uff1a\u542f\u7528GZIP\/BR\u3001HTTP\/2\u6216HTTP\/3\u4ee5\u63d0\u5347\u4f20\u8f93\u6548\u7387\uff0c\u914d\u5408\u65e5\u5fd7\u76d1\u63a7TLS\u534f\u5546\u8017\u65f6\u3002<\/li>\n<\/ul>\n<h2>\u65e5\u5fd7\u6cbb\u7406\u4e0e\u5408\u89c4\u6027<\/h2>\n<p>\u65e5\u5fd7\u5305\u542b\u654f\u611f\u4fe1\u606f\uff08IP\u3001Cookie\u3001URL\u53c2\u6570\uff09\uff0c\u9700\u8981\u5728\u91c7\u96c6\u548c\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u6ce8\u610f\u9690\u79c1\u4e0e\u5408\u89c4\uff1a<\/p>\n<ul>\n<li>\u8131\u654f\u5904\u7406\uff1a\u5728\u4f20\u8f93\u6216\u6301\u4e45\u5316\u524d\u5bf9Cookie\u3001Authorization\u3001Query String\u4e2d\u7684\u654f\u611f\u53c2\u6570\u8fdb\u884c\u8131\u654f\u6216\u54c8\u5e0c\u5316\u3002<\/li>\n<li>\u4fdd\u7559\u7b56\u7565\uff1a\u6839\u636e\u6cd5\u89c4\u4e0e\u4e1a\u52a1\u9700\u6c42\u8bbe\u5b9a\u65e5\u5fd7\u4fdd\u7559\u671f\uff0c\u5e38\u89c1\u505a\u6cd5\u662f\u70ed\u6570\u636e\u4fdd\u75597-30\u5929\uff0c\u51b7\u6570\u636e\u5b58\u686390-365\u5929\u3002<\/li>\n<li>\u8bbf\u95ee\u63a7\u5236\uff1a\u91c7\u7528\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\uff08RBAC\uff09\u4e0e\u5ba1\u8ba1\uff0c\u9650\u5236\u53ea\u6709\u6388\u6743\u4eba\u5458\u80fd\u67e5\u8be2\u654f\u611f\u65e5\u5fd7\u3002<\/li>\n<\/ul>\n<h2>\u5de5\u5177\u94fe\u4e0e\u81ea\u52a8\u5316\u5efa\u8bae<\/h2>\n<p>\u6784\u5efa\u4e00\u5957\u6210\u719f\u7684\u65e5\u5fd7\u5e73\u53f0\u53ef\u4ee5\u660e\u663e\u7f29\u77ed\u6545\u969c\u6392\u67e5\u65f6\u95f4\u5e76\u652f\u6301\u81ea\u52a8\u5316\u54cd\u5e94\uff1a<\/p>\n<ul>\n<li>\u96c6\u4e2d\u65e5\u5fd7\u7ba1\u9053\uff1a\u8fb9\u7f18\u8282\u70b9 -&gt; Fluent Bit\/Logstash -&gt; Kafka -&gt; 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