{"id":1201,"date":"2026-08-05T15:22:22","date_gmt":"2026-08-05T07:22:22","guid":{"rendered":"https:\/\/www.suannai.link\/blog\/%e8%b7%a8%e5%a2%83%e5%8a%9e%e5%85%ac%e7%ba%bf%e8%b7%af%e9%80%89%e6%8b%a9%e5%af%b9%e9%80%9f%e5%ba%a6%e7%9a%84%e5%bd%b1%e5%93%8d\/"},"modified":"2026-08-05T15:22:22","modified_gmt":"2026-08-05T07:22:22","slug":"%e8%b7%a8%e5%a2%83%e5%8a%9e%e5%85%ac%e7%ba%bf%e8%b7%af%e9%80%89%e6%8b%a9%e5%af%b9%e9%80%9f%e5%ba%a6%e7%9a%84%e5%bd%b1%e5%93%8d","status":"publish","type":"post","link":"https:\/\/www.suannai.link\/blog\/%e8%b7%a8%e5%a2%83%e5%8a%9e%e5%85%ac%e7%ba%bf%e8%b7%af%e9%80%89%e6%8b%a9%e5%af%b9%e9%80%9f%e5%ba%a6%e7%9a%84%e5%bd%b1%e5%93%8d\/","title":{"rendered":"\u8de8\u5883\u529e\u516c\u7ebf\u8def\u9009\u62e9\u5bf9\u901f\u5ea6\u7684\u5f71\u54cd"},"content":{"rendered":"<p>\u8de8\u5883\u529e\u516c\u65f6\uff0c\u7f51\u7edc\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\u76f4\u63a5\u51b3\u5b9a\u4e86\u89c6\u9891\u4f1a\u8bae\u662f\u5426\u5361\u987f\u3001\u4ee3\u7801\u4ed3\u5e93\u540c\u6b65\u662f\u5426\u8d85\u65f6\u4ee5\u53ca\u6570\u636e\u5e93\u67e5\u8be2\u7684\u54cd\u5e94\u65f6\u95f4\u3002\u9009\u62e9\u8de8\u5883\u7ebf\u8def\u65f6\uff0c\u901f\u5ea6\u7684\u8868\u73b0\u5e76\u975e\u7531\u5355\u4e00\u56e0\u7d20\u51b3\u5b9a\uff0c\u800c\u662f\u7269\u7406\u8ddd\u79bb\u3001\u8def\u7531\u8df3\u6570\u3001\u534f\u8bae\u6548\u7387\u4ee5\u53ca\u7ec8\u7aef\u914d\u7f6e\u5171\u540c\u4f5c\u7528\u7684\u7ed3\u679c\u3002\u7406\u89e3\u8fd9\u4e9b\u53d8\u91cf\u5982\u4f55\u4ea4\u4e92\uff0c\u662f\u4f18\u5316\u529e\u516c\u4f53\u9a8c\u7684\u5173\u952e\u3002<\/p>\n<h2>\u7269\u7406\u8ddd\u79bb\u4e0e\u8def\u7531\u8df3\u6570\u5bf9\u5ef6\u8fdf\u7684\u51b3\u5b9a\u6027\u4f5c\u7528<\/h2>\n<p>\u8de8\u5883\u6570\u636e\u4f20\u8f93\u5fc5\u987b\u7ecf\u8fc7\u6d77\u5e95\u5149\u7f06\u6216\u9646\u5730\u5149\u7f06\uff0c\u7269\u7406\u8ddd\u79bb\u662f\u9650\u5236\u901f\u5ea6\u7684\u5e95\u5c42\u786c\u7ea6\u675f\u3002\u6839\u636e\u5149\u901f\u5728\u5149\u7ea4\u4e2d\u7684\u4f20\u64ad\u901f\u5ea6\uff0c\u6bcf\u589e\u52a0 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<strong>\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09<\/strong>\uff1a\u8fd9\u662f\u4ece\u53d1\u9001\u8bf7\u6c42\u5230\u6536\u5230\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u65f6\u95f4\u3002\u5bf9\u4e8e\u7f51\u9875\u6d4f\u89c8\u548c API \u8c03\u7528\uff0cTTFB \u8d8a\u4f4e\uff0c\u611f\u77e5\u901f\u5ea6\u8d8a\u5feb\u3002<br \/>\u2022 <strong>\u4e22\u5305\u7387\u4e0e\u6296\u52a8<\/strong>\uff1a\u9ad8\u4e22\u5305\u7387\u4f1a\u5bfc\u81f4 TCP \u91cd\u4f20\uff0c\u663e\u8457\u964d\u4f4e\u6709\u6548\u541e\u5410\u91cf\uff1b\u6296\u52a8\u8fc7\u5927\u5219\u4f1a\u5bfc\u81f4\u5b9e\u65f6\u97f3\u89c6\u9891\u901a\u8bdd\u51fa\u73b0\u65ad\u7eed\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u64cd\u4f5c\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 traceroute \u6216 mtr \u547d\u4ee4\u89c2\u5bdf\u6570\u636e\u5305\u7ecf\u8fc7\u7684\u8282\u70b9\u6570\u91cf\u3002\u5982\u679c\u7ecf\u8fc7\u7684\u8282\u70b9\u8d85\u8fc7 10 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\u534f\u8bae\u5177\u6709\u53ef\u9760\u6027\uff0c\u4f46\u5728\u9ad8\u5ef6\u8fdf\u6216\u4e22\u5305\u7684\u7f51\u7edc\u73af\u5883\u4e0b\uff0c\u5176\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u4f1a\u5bfc\u81f4\u901f\u5ea6\u6025\u5267\u4e0b\u964d\u3002\u8fd9\u662f\u56e0\u4e3a TCP \u5728\u68c0\u6d4b\u5230\u4e22\u5305\u65f6\u4f1a\u5927\u5e45\u964d\u4f4e\u53d1\u9001\u901f\u7387\uff0c\u800c\u8de8\u5883\u7ebf\u8def\u5f80\u5f80\u5b58\u5728\u95f4\u6b47\u6027\u4e22\u5305\uff0c\u5bfc\u81f4 TCP \u8fde\u63a5\u9891\u7e41\u5904\u4e8e\u201c\u6162\u542f\u52a8\u201d\u72b6\u6001\u3002<\/p>\n<p>\u76f8\u6bd4\u4e4b\u4e0b\uff0cUDP \u6a21\u5f0f\u6216\u57fa\u4e8e UDP \u5c01\u88c5\u7684\u534f\u8bae\uff08\u5982\u67d0\u4e9b\u4f18\u5316\u7684\u4f20\u8f93\u5c42\u534f\u8bae\uff09\u80fd\u591f\u7ed5\u8fc7\u90e8\u5206\u4e2d\u95f4\u7f51\u7edc\u7684\u9650\u5236\uff0c\u51cf\u5c11\u63e1\u624b\u5f00\u9500\u3002\u7279\u522b\u662f\u5728\u5f31\u7f51\u73af\u5883\u4e0b\uff0cUDP \u7c7b\u534f\u8bae\u901a\u5e38\u80fd\u4fdd\u6301\u66f4\u7a33\u5b9a\u7684\u541e\u5410\u91cf\uff0c\u4f46\u9700\u8981\u5e94\u7528\u5c42\u81ea\u884c\u5904\u7406\u53ef\u9760\u6027\u95ee\u9898\u3002<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:24px 0;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:10px;background:#f7f7f7;text-align:left;\">\u534f\u8bae\u7c7b\u578b<\/th>\n<th style=\"border:1px solid #ddd;padding:10px;background:#f7f7f7;text-align:left;\">\u5ef6\u8fdf\u8868\u73b0<\/th>\n<th style=\"border:1px solid #ddd;padding:10px;background:#f7f7f7;text-align:left;\">\u6297\u4e22\u5305\u80fd\u529b<\/th>\n<th style=\"border:1px solid #ddd;padding:10px;background:#f7f7f7;text-align:left;\">\u9002\u7528\u573a\u666f<\/th>\n<th style=\"border:1px solid #ddd;padding:10px;background:#f7f7f7;text-align:left;\">\u6f5c\u5728\u95ee\u9898<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:10px;vertical-align:top;\">TCP 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SSH\u3001Git\uff09\uff0c\u5219\u9700\u786e\u4fdd\u8be5\u7aef\u53e3\u7684\u8def\u7531\u8def\u5f84\u672a\u88ab\u5e72\u6270\uff0c\u5fc5\u8981\u65f6\u53ef\u5c1d\u8bd5\u8c03\u6574 MTU 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