{"id":35553,"date":"2025-05-05T04:05:53","date_gmt":"2025-05-04T20:05:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/35553.html"},"modified":"2025-05-05T04:05:53","modified_gmt":"2025-05-04T20:05:53","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e8%bf%9c%e7%a8%8b%e8%b6%85%e5%87%ba%e6%9c%80%e5%a4%a7%e8%bf%9e%e6%8e%a5%e6%95%b0%e7%9a%84%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/35553.html","title":{"rendered":"\u670d\u52a1\u5668\u8fdc\u7a0b\u8d85\u51fa\u6700\u5927\u8fde\u63a5\u6570\u7684\u89e3\u51b3\u65b9\u6848\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250504200551-6817c89fb55ec.jpg\" 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\/>\n<h3>1. \u95ee\u9898\u80cc\u666f\u4e0e\u6280\u672f\u539f\u7406<\/h3>\n<h4>1.1 \u8fdc\u7a0b\u8fde\u63a5\u673a\u5236\u89e3\u6790<\/h4>\n<p>\u73b0\u4ee3\u670d\u52a1\u5668\u901a\u8fc7TCP\u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u8fde\u63a5&#xff0c;\u6bcf\u4e2a\u8fde\u63a5\u5360\u7528\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff08;File Descriptor&#xff09;\u8d44\u6e90\u3002Linux\u7cfb\u7edf\u9ed8\u8ba4\u6700\u5927\u6587\u4ef6\u63cf\u8ff0\u7b26\u6570\u4e3a1024&#xff08;\u53ef\u901a\u8fc7ulimit -n\u67e5\u8be2&#xff09;&#xff0c;Windows Server 2019\u9ed8\u8ba4\u6700\u5927\u5e76\u53d1\u8fde\u63a5\u6570\u4e3a16384\u3002\u5f53\u5e76\u53d1\u8bf7\u6c42\u8d85\u8fc7\u8be5\u9608\u503c\u65f6&#xff0c;\u7cfb\u7edf\u5c06\u62d2\u7edd\u65b0\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n<h4>1.2 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System&#xff09;\u788e\u7247\u5316\u4f1a\u52a0\u5267\u8d44\u6e90\u6d88\u8017\u3002<\/p>\n<h4>2.2 \u8f6f\u4ef6\u914d\u7f6e\u7f3a\u9677<\/h4>\n<p>Apache\u9ed8\u8ba4MaxClients\u8bbe\u7f6e\u4e3a256&#xff0c;Nginx\u7684worker_connections\u9ed8\u8ba4512&#xff0c;\u8fd9\u4e9b\u9884\u8bbe\u503c\u96be\u4ee5\u5e94\u5bf9\u9ad8\u5e76\u53d1\u573a\u666f\u3002MySQL\u7684max_connections\u53c2\u6570\u8bbe\u7f6e\u4e0d\u5f53\u4f1a\u5bfc\u81f4\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u8017\u5c3d\u3002<\/p>\n<h4>2.3 \u7f51\u7edc\u534f\u8bae\u9650\u5236<\/h4>\n<p>TCP TIME_WAIT\u72b6\u6001&#xff08;\u9ed8\u8ba460\u79d2&#xff09;\u4f1a\u5360\u7528\u8fde\u63a5\u8d44\u6e90&#xff0c;\u7a81\u53d1\u6027\u65ad\u8fde\u53ef\u80fd\u4ea7\u751f\u5927\u91cf\u534a\u5f00\u8fde\u63a5&#xff08;Half-Open Connections&#xff09;\u3002<\/p>\n<h4>2.4 \u5b89\u5168\u5a01\u80c1\u5f71\u54cd<\/h4>\n<p>DDoS\u653b\u51fb\u4e2d\u7684CC&#xff08;Challenge 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