{"id":210409,"date":"2025-10-29T13:57:12","date_gmt":"2025-10-29T05:57:12","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210409\/"},"modified":"2025-10-29T13:57:13","modified_gmt":"2025-10-29T05:57:13","slug":"saas-2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210409\/","title":{"rendered":"\u4f01\u4e1a\u7ea7CDN\u00d7SaaS\u667a\u80fd\u52a0\u901f\u65b9\u6848\uff1a\u4e3a\u4e1a\u52a1\u63d0\u901f\u3001\u964d\u672c\u3001\u7a33\u6001"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u4e92\u8054\u7f51\u65f6\u4ee3\uff0c\u7f51\u7ad9\u4e0e\u5728\u7ebf\u670d\u52a1\u7684\u6027\u80fd\u76f4\u63a5\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u548c\u5546\u4e1a\u8f6c\u5316\u3002\u9762\u5bf9\u77ac\u606f\u4e07\u53d8\u7684\u6d41\u91cf\u9ad8\u5cf0\u4e0e\u8de8\u533a\u57df\u8bbf\u95ee\u9700\u6c42\uff0c\u4f20\u7edf\u5355\u70b9\u673a\u623f\u6216\u81ea\u5efa\u52a0\u901f\u65b9\u6848\u96be\u4ee5\u517c\u987e\u6210\u672c\u4e0e\u7a33\u5b9a\u6027\u3002\u5c06\u4f01\u4e1a\u7ea7CDN\u4e0eSaaS\u667a\u80fd\u52a0\u901f\u7ed3\u5408\uff0c\u80fd\u591f\u5b9e\u73b0\u5bf9\u9759\u6001\u4e0e\u52a8\u6001\u5185\u5bb9\u7684\u5206\u5c42\u4f18\u5316\u3001\u667a\u80fd\u8def\u7531\u3001\u4ee5\u53ca\u7cbe\u7ec6\u5316\u8fd0\u7ef4\uff0c\u4ece\u800c\u8fbe\u5230<strong>\u4e3a\u4e1a\u52a1\u63d0\u901f\u3001\u964d\u672c\u3001\u7a33\u6001<\/strong>\u7684\u76ee\u6807\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u548c\u5f00\u53d1\u8005\uff0c\u6df1\u5165\u89e3\u6790\u8be5\u65b9\u6848\u7684\u539f\u7406\u3001\u5178\u578b\u5e94\u7528\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u53ca\u9009\u8d2d\u5efa\u8bae\uff0c\u5e76\u7a7f\u63d2\u591a\u533a\u57df\u670d\u52a1\u5668\u4e0e\u57df\u540d\u6ce8\u518c\u7b49\u5b9e\u8df5\u5efa\u8bae\u3002<\/p>\n<h2>\u539f\u7406\u4e0e\u5173\u952e\u6280\u672f\u7ec4\u4ef6<\/h2>\n<p>\u4f01\u4e1a\u7ea7CDN\u00d7SaaS\u667a\u80fd\u52a0\u901f\u65b9\u6848\u672c\u8d28\u4e0a\u662f\u5c06\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff08CDN\uff09\u7684\u8fb9\u7f18\u80fd\u529b\u4e0eSaaS\u5e73\u53f0\u7684\u667a\u80fd\u7b56\u7565\u5f15\u64ce\u7ed3\u5408\uff0c\u5f62\u6210\u4e00\u5957\u53ef\u7f16\u6392\u3001\u53ef\u5ea6\u91cf\u3001\u53ef\u81ea\u52a8\u5316\u7684\u52a0\u901f\u4f53\u7cfb\u3002\u5173\u952e\u6280\u672f\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n<h3>1. 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\u591a\u5c42\u7f13\u5b58\u4e0e\u7f13\u5b58\u7b56\u7565<\/h3>\n<ul>\n<li>\u9759\u6001\u8d44\u6e90\u91c7\u7528CDN\u8fb9\u7f18\u7f13\u5b58\uff08Cache-First\uff09\uff0c\u7ed3\u5408HTTP\u7f13\u5b58\u5934\uff08Cache-Control\u3001ETag\u3001Last-Modified\uff09\u4e0e\u7f13\u5b58\u952e\uff08\u5305\u542bQuery\u3001Cookie\u767d\u540d\u5355\uff09\u5b9e\u73b0\u9ad8\u547d\u4e2d\u7387\u3002<\/li>\n<li>\u52a8\u6001\u5185\u5bb9\u901a\u8fc7\u8fb9\u7f18\u52a8\u6001\u52a0\u901f\uff08Edge Compute \u6216 Edge Workers\uff09\u5b9e\u73b0\u8fd1\u7aef\u8ba1\u7b97\uff0c\u5fc5\u8981\u65f6\u4f7f\u7528Cache-Control: stale-while-revalidate\u3001stale-if-error\u7b49\u7b56\u7565\u964d\u4f4e\u56de\u6e90\u538b\u529b\u3002<\/li>\n<\/ul>\n<h3>3. \u4f20\u8f93\u5c42\u4e0e\u534f\u8bae\u4f18\u5316<\/h3>\n<ul>\n<li>\u652f\u6301HTTP\/2\u3001QUIC\uff08HTTP\/3\uff09\u548cTCP\u62e5\u585e\u63a7\u5236\u4f18\u5316\uff08\u5982BBR\uff09\uff0c\u51cf\u5c11\u63e1\u624b\u548c\u4e22\u5305\u5e26\u6765\u7684\u5ef6\u8fdf\u3002<\/li>\n<li>TLS\u52a0\u901f\u4e0e\u8bc1\u4e66\u81ea\u52a8\u5316\uff08ACME\uff09\uff0c\u5728\u8fb9\u7f18\u5b8c\u6210TLS\u7ec8\u6b62\u4ee5\u51cf\u8f7b\u6e90\u7ad9\u8d1f\u62c5\u3002<\/li>\n<\/ul>\n<h3>4. \u56de\u6e90\u4f18\u5316\u4e0eOrigin Shield<\/h3>\n<ul>\n<li>Origin Shield\u4f5c\u4e3a\u4e2d\u95f4\u56de\u6e90\u5c42\uff0c\u96c6\u4e2d\u5904\u7406\u56de\u6e90\u6d41\u91cf\u548c\u7f13\u5b58\u672a\u547d\u4e2d\u7684\u8bf7\u6c42\uff0c\u51cf\u5c11\u5bf9\u4e3b\u7ad9\uff08\u4f8b\u5982\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\uff09\u7684\u5e76\u53d1\u8bf7\u6c42\u3002<\/li>\n<li>\u667a\u80fd\u56de\u6e90\u9650\u6d41\u3001\u6392\u961f\u4e0e\u7194\u65ad\u7b56\u7565\uff0c\u4fdd\u8bc1\u6e90\u7ad9\u5728\u6d41\u91cf\u7a81\u589e\u65f6\u7684\u53ef\u7528\u6027\u4e0e\u7a33\u5b9a\u6027\u3002<\/li>\n<\/ul>\n<h3>5. \u5b89\u5168\u4e0e\u6297DDoS\u80fd\u529b<\/h3>\n<ul>\n<li>\u8fb9\u7f18\u5177\u5907WAF\u89c4\u5219\u3001\u901f\u7387\u9650\u5236\u3001IP\u4fe1\u8a89\u4e0eGeo-fencing\uff0c\u914d\u5408\u5168\u7403\u6e05\u6d17\u80fd\u529b\u62b5\u5fa1\u5927\u89c4\u6a21DDoS\u653b\u51fb\u3002<\/li>\n<li>\u4e0e\u57df\u540d\u6ce8\u518c\u3001DNS\u670d\u52a1\u7d27\u5bc6\u914d\u5408\uff0c\u652f\u6301DNS Anycast\u4e0e\u667a\u80fd\u89e3\u6790\uff0c\u964d\u4f4e\u89e3\u6790\u5c42\u9762\u5355\u70b9\u98ce\u9669\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u5b9e\u8df5\u843d\u5730<\/h2>\n<h3>\u7535\u5b50\u5546\u52a1\u4e0e\u9ad8\u5e76\u53d1\u4fc3\u9500<\/h3>\n<p>\u7535\u5546\u5728\u6d3b\u52a8\u671f\u95f4\u5f80\u5f80\u9762\u4e34\u7a81\u53d1\u7684\u6d41\u91cf\u5cf0\u503c\u3002\u901a\u8fc7CDN\u7f13\u5b58\u9759\u6001\u8d44\u6e90\u3001Edge Workers\u6e32\u67d3\u4e2a\u6027\u5316\u7247\u6bb5\u3001\u4ee5\u53caOrigin Shield\u4fdd\u62a4\u9999\u6e2fVPS\u6216\u7f8e\u56fdVPS\u7b49\u6e90\u7ad9\uff0c\u53ef\u663e\u8457\u964d\u4f4e\u56de\u6e90QPS\u5e76\u63d0\u5347\u9875\u9762\u9996\u5c4f\u65f6\u95f4\u3002\u914d\u5408\u5206\u533a\u57df\u8d1f\u8f7d\u5747\u8861\uff0c\u5c06\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u3001\u65b0\u52a0\u5761\u670d\u52a1\u5668\u7b49\u8fb9\u7f18\u8282\u70b9\u4f5c\u4e3a\u9996\u9009\u51fa\u53e3\uff0c\u4fdd\u8bc1\u4e9a\u592a\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h3>\u56fd\u9645SaaS\u4ea7\u54c1\u4e0eAPI\u52a0\u901f<\/h3>\n<p>SaaS\u670d\u52a1\u901a\u5e38\u8981\u6c42\u4f4e\u5ef6\u8fdf\u4e0e\u9ad8\u53ef\u7528\u7684API\u8c03\u7528\u3002\u91c7\u7528\u667a\u80fd\u8def\u7531\u3001QUIC\u4f20\u8f93\u548c\u957f\u8fde\u63a5\u590d\u7528\u6280\u672f\uff0c\u80fd\u591f\u51cf\u5c11API\u54cd\u5e94\u65f6\u5ef6\u3002\u82e5\u670d\u52a1\u5728\u591a\u4e2a\u673a\u623f\uff08\u5982\u9999\u6e2f\u670d\u52a1\u5668\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\uff09\u90e8\u7f72\uff0cCDN\u5c42\u53ef\u505a\u667a\u80fd\u6d41\u91cf\u5206\u914d\uff0c\u5e76\u901a\u8fc7\u5b9e\u65f6\u76d1\u6d4b\u5c06\u6d41\u91cf\u5207\u6362\u5230\u5065\u5eb7\u673a\u623f\u3002<\/p>\n<h3>\u5a92\u4f53\u5206\u53d1\u4e0e\u76f4\u64ad\u573a\u666f<\/h3>\n<p>\u76f4\u64ad\u4e0e\u70b9\u64ad\u5bf9\u5e26\u5bbd\u4e0e\u7a33\u5b9a\u6027\u8981\u6c42\u9ad8\u3002\u7ed3\u5408\u5206\u7247\u4f20\u8f93\u3001\u8fb9\u7f18\u7f13\u5b58\u4e0e\u56de\u6e90\u591a\u8def\u5e76\u53d1\u7b56\u7565\uff0c\u53ef\u4ee5\u51cf\u5c11\u8fb9\u7f18\u6296\u52a8\u4e0e\u5361\u987f\u3002\u5bf9\u4e8e\u76f4\u64ad\u56de\u770b\uff0c\u53ef\u4f7f\u7528\u589e\u91cf\u7f13\u5b58\u4e0e\u540e\u7aef\u8f6c\u7801\u8282\u70b9\uff08\u4f8b\u5982\u5728\u65b0\u52a0\u5761\u670d\u52a1\u5668\u6216\u4e1c\u4eac\u8282\u70b9\uff09\u534f\u540c\u5904\u7406\u3002<\/p>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\uff1a\u4f01\u4e1a\u7ea7CDN\u00d7SaaS vs \u4f20\u7edf\u52a0\u901f\u65b9\u6848<\/h2>\n<h3>\u6027\u80fd\u4e0e\u53ef\u89c2\u6d4b\u6027<\/h3>\n<ul>\n<li><strong>\u66f4\u4f4e\u5ef6\u8fdf\uff1a<\/strong>\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u667a\u80fd\u8def\u7531\u663e\u8457\u51cf\u5c11\u8de8\u6d0b\u5ef6\u8fdf\uff0c\u5c24\u5176\u5bf9\u63a5\u8fd1\u9999\u6e2f\u6216\u65e5\u672c\u7684\u7528\u6237\u4f53\u9a8c\u63d0\u5347\u660e\u663e\u3002<\/li>\n<li><strong>\u66f4\u597d\u53ef\u89c2\u6d4b\uff1a<\/strong>SaaS\u5e73\u53f0\u63d0\u4f9b\u7edf\u4e00\u7684\u76d1\u63a7\u9762\u677f\u3001\u8bf7\u6c42\u94fe\u8def\u8ffd\u8e2a\uff08Distributed Tracing\uff09\u3001\u5b9e\u65f6\u62a5\u8b66\u4e0e\u65e5\u5fd7\u5206\u6790\uff0c\u4fbf\u4e8e\u8fd0\u7ef4\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u3002<\/li>\n<\/ul>\n<h3>\u6210\u672c\u4e0e\u8fd0\u7ef4<\/h3>\n<ul>\n<li><strong>\u964d\u672c\uff1a<\/strong>\u901a\u8fc7\u9ad8\u547d\u4e2d\u7387\u7f13\u5b58\u4e0eOrigin 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