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\u7f51\u7edc\u5a01\u80c1\u4e0e\u6076\u610f\u6d3b\u52a8<\/strong>\uff1a\u4f5c\u4e3a\u4e9a\u592a\u5730\u533a\u6d41\u91cf\u67a2\u7ebd\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u662fDDoS\/CC\u653b\u51fb\u7684\u4e3b\u8981\u76ee\u6807\u3002\u8fd9\u7c7b\u653b\u51fb\u901a\u8fc7\u6d77\u91cf\u4f2a\u9020\u8bf7\u6c42 flooding \u670d\u52a1\u5668\uff0c\u8feb\u4f7f\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u6570\u5343\u4e2a\u5e76\u53d1\u8fde\u63a5\uff0c\u6700\u7ec8\u8017\u5c3d\u5185\u5b58\u3002\u6076\u610f\u722c\u866b\u4e0e\u6570\u636e\u6293\u53d6\u5de5\u5177\u540c\u6837\u6784\u6210\u5a01\u80c1\u2014\u2014\u4e0d\u53d7\u9650\u5236\u7684 bots \u9ad8\u9891\u8bbf\u95eeAPI\u6216\u9759\u6001\u8d44\u6e90\uff0c\u4f1a\u89e6\u53d1\u8fc7\u91cf\u6570\u636e\u5904\u7406\uff1b\u800c\u901a\u8fc7\u672a\u4fee\u8865\u6f0f\u6d1e\u690d\u5165\u7684\u9690\u85cf\u6316\u77ff\u6076\u610f\u8f6f\u4ef6\uff0c\u4f1a\u5360\u7528\u5927\u91cf\u5185\u5b58\u7528\u4e8e\u52a0\u5bc6\u8d27\u5e01\u8fd0\u7b97\u3002<\/li>\n
\u7cfb\u7edf\u4e0e\u73af\u5883\u914d\u7f6e\u4e0d\u5f53<\/strong>\uff1a\u9ed8\u8ba4\u7684\u64cd\u4f5c\u7cfb\u7edf\u8bbe\u7f6e\u5f88\u5c11\u9488\u5bf9\u9999\u6e2f\u7684\u4f7f\u7528\u573a\u666f\u4f18\u5316\u3002\u4f8b\u5982\uff0cLinux\u7cfb\u7edf\u7684swappiness\u503c\u8bbe\u7f6e\u8fc7\u9ad8\uff0c\u4f1a\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684\u78c1\u76d8-\u5185\u5b58\u4ea4\u6362\uff1b\u800c\u672a\u4f7f\u7528\u7684\u7cfb\u7edf\u670d\u52a1\uff08\u5982\u6253\u5370\u540e\u53f0\u7a0b\u5e8f\u3001\u8fdc\u7a0b\u684c\u9762\u5b88\u62a4\u8fdb\u7a0b\uff09\u4f1a\u5728\u540e\u53f0\u8fd0\u884c\u5e76\u6d88\u8017\u8d44\u6e90\u3002\u8fc7\u65f6\u7684\u5185\u6838\u6216\u672a\u4fee\u8865\u7684\u5e93\u6587\u4ef6\u901a\u5e38\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u95ee\u9898\uff0c\u8fd9\u5bf9\u5904\u7406\u6301\u7eed\u8de8\u5883\u6d41\u91cf\u7684\u957f\u671f\u8fd0\u884c\u670d\u52a1\u5668\u5c24\u4e3a\u5173\u952e\u3002<\/li>\n
\u9999\u6e2f\u4e13\u5c5e\u5de5\u4f5c\u8d1f\u8f7d\u6311\u6218<\/strong>\uff1a\u8de8\u5883\u8def\u7531\u5e26\u6765\u4e86\u72ec\u7279\u7684\u9700\u6c42\u3002\u5904\u7406\u9999\u6e2f\u3001\u4e2d\u56fd\u5927\u9646\u53ca\u4e1c\u5357\u4e9a\u5730\u533a\u6d41\u91cf\u7684\u670d\u52a1\u5668\uff0c\u5fc5\u987b\u7f13\u5b58\u66f4\u591a\u7f51\u7edc\u5143\u6570\u636e\u4ee5\u7ef4\u6301\u8fde\u63a5\u7a33\u5b9a\u6027\uff08\u5c24\u5176\u662f\u5728\u5ef6\u8fdf\u6ce2\u52a8\u7684\u60c5\u51b5\u4e0b\uff09\u3002\u8fd0\u884c\u5728\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7684\u591a\u533a\u57df\u5e94\u7528\uff08\u5982\u591a\u8bed\u8a00\u7535\u5546\u5e73\u53f0\u3001\u5168\u7403SaaS\u5de5\u5177\uff09\uff0c\u4e5f\u4f1a\u56e0\u9700\u8981\u5e76\u884c\u5904\u7406\u533a\u57df\u7279\u5b9a\u6570\u636e\u548c\u7528\u6237\u4f1a\u8bdd\u800c\u52a0\u5267\u5185\u5b58\u538b\u529b\u3002<\/li>\n<\/ul>\n
\u5f00\u53d1\u8005\u4e13\u5c5e\u6280\u672f\u6545\u969c\u6392\u67e5\u6d41\u7a0b<\/strong><\/h2>\n
\u8bca\u65ad\u5185\u5b58\u95ee\u9898\u9700\u8981\u7cfb\u7edf\u5316\u65b9\u6cd5\uff0c\u7ed3\u5408\u547d\u4ee4\u884c\u5de5\u5177\u3001\u65e5\u5fd7\u5206\u6790\u548c\u5de5\u4f5c\u8d1f\u8f7d\u5206\u6790\u3002\u9075\u5faa\u4ee5\u4e0b\u5206\u6b65\u6d41\u7a0b\uff0c\u7cbe\u51c6\u5b9a\u4f4d\u6839\u672c\u539f\u56e0\uff1a<\/p>\n
\n
\u4f7f\u7528CLI\u5de5\u5177\u5efa\u7acb\u5185\u5b58\u4f7f\u7528\u57fa\u51c6<\/strong>\uff1a\u4ece\u5e95\u5c42\u7cfb\u7edf\u68c0\u67e5\u5f00\u59cb\uff0c\u5efa\u7acb\u6027\u80fd\u57fa\u51c6\u3002\u5728\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u4e2d\u5360\u4e3b\u5bfc\u5730\u4f4d\u7684Linux\u7cfb\u7edf\u4e0a\uff0c\u4f7f\u7528free -h<\/code>\u547d\u4ee4\u533a\u5206\u5df2\u7528\u3001\u7a7a\u95f2\u548c\u7f13\u5b58\u5185\u5b58\uff08\u907f\u514d\u5c06\u7f13\u5b58RAM\u8bef\u8ba4\u4e3a\u5b9e\u9645\u5185\u5b58\u81a8\u80c0\uff09\u3002\u901a\u8fc7top<\/code>\u6216htop<\/code>\u547d\u4ee4\u67e5\u770b\u8fdb\u7a0b\u7ea7\u5185\u5b58\u6d88\u8017\u2014\u2014\u6309%MEM\u6392\u5e8f\uff0c\u8bc6\u522b\u8d44\u6e90\u5360\u7528\u5927\u6237\uff08\u5982\u884c\u4e3a\u5f02\u5e38\u7684PHP-FPM\u8fdb\u7a0b\u6c60\u6216\u5931\u63a7\u7684\u6570\u636e\u5e93\u8fdb\u7a0b\uff09\u3002\u5bf9\u4e8e\u57fa\u4e8eWindows\u7684\u670d\u52a1\u5668\u6258\u7ba1\u73af\u5883\uff0c\u4f7f\u7528\u8d44\u6e90\u76d1\u89c6\u5668\uff08resmon.exe\uff09\u5206\u6790\u8fdb\u7a0b\u5185\u5b58\u5806\u6808\uff0c\u8bc6\u522b\u6cc4\u6f0f\u6a21\u5f0f\u3002<\/li>\n
\u5206\u6790\u5de5\u4f5c\u8d1f\u8f7d\u4e0e\u65e5\u5fd7\u6570\u636e<\/strong>\uff1a\u786e\u5b9a\u9876\u7ea7\u5360\u7528\u8fdb\u7a0b\u540e\uff0c\u6df1\u5165\u5206\u6790\u5176\u884c\u4e3a\u3002\u5bf9\u4e8eWeb\u5e94\u7528\uff0c\u68c0\u67e5Nginx\/Apache\u8bbf\u95ee\u65e5\u5fd7\uff0c\u67e5\u627e\u5f02\u5e38\u8bf7\u6c42\u6a21\u5f0f\uff08\u5982\u91cd\u590dPOST\u5230\u5355\u4e2a\u7aef\u70b9\uff0c\u53ef\u80fd\u6307\u793a\u673a\u5668\u4eba\u653b\u51fb\uff09\u62165xx\u9519\u8bef\uff08\u8868\u660e\u5e94\u7528\u56e0\u5185\u5b58\u9650\u5236\u5d29\u6e83\uff09\u3002\u6570\u636e\u5e93\u65e5\u5fd7\uff08\u5982MySQL\u7684\u6162\u67e5\u8be2\u65e5\u5fd7\uff09\u53ef\u51f8\u663e\u6d88\u8017\u5185\u5b58\u7684\u4f4e\u6548\u67e5\u8be2\u3002\u9488\u5bf9\u8de8\u5883\u6d41\u91cf\u95ee\u9898\uff0c\u4f7f\u7528tcpdump<\/code>\u6216Wireshark\u5206\u6790\u8fde\u63a5\u5143\u6570\u636e\uff0c\u8bc6\u522b\u8def\u7531\u76f8\u5173\u7684\u5185\u5b58\u81a8\u80c0\u3002<\/li>\n
\u5229\u7528\u4e13\u4e1a\u76d1\u63a7\u5de5\u5177<\/strong>\uff1aCLI\u5de5\u5177\u9002\u7528\u4e8e\u521d\u6b65\u68c0\u67e5\uff0c\u4f46\u957f\u671f\u76d1\u63a7\u9700\u8981\u4e13\u4e1a\u5e73\u53f0\u3002Zabbix\u6216Prometheus\uff08\u642d\u914dGrafana\uff09\u53ef\u8ddf\u8e2a\u5185\u5b58\u4f7f\u7528\u8d8b\u52bf\uff0c\u5e2e\u52a9\u8bc6\u522b\u6e10\u8fdb\u5f0f\u6cc4\u6f0f\u3002\u5bf9\u4e8e\u5e94\u7528\u5c42\u8c03\u8bd5\uff0c\u4f7f\u7528Xdebug\uff08PHP\uff09\u6216VisualVM\uff08Java\uff09\u8ffd\u8e2a\u5185\u5b58\u5206\u914d\uff0c\u7cbe\u51c6\u5b9a\u4f4d\u6cc4\u6f0f\u4ee3\u7801\u3002\u6570\u636e\u5e93\u4e13\u5c5e\u5de5\u5177\uff08\u5982MySQL Workbench\u3001MongoDB Compass\uff09\u53ef\u5206\u6790\u67e5\u8be2\u6027\u80fd\uff0c\u51f8\u663e\u5185\u5b58\u5bc6\u96c6\u578b\u64cd\u4f5c\u3002<\/li>\n<\/ol>\n
\u9999\u6e2f\u670d\u52a1\u5668\u5185\u5b58\u4f18\u5316\u7b56\u7565<\/strong><\/h2>\n
\u786e\u5b9a\u6839\u672c\u539f\u56e0\u540e\uff0c\u5b9e\u65bd\u4ee5\u4e0b\u6280\u672f\u4fee\u590d\u4ee5\u964d\u4f4e\u5185\u5b58\u5360\u7528\u5e76\u63d0\u5347\u7a33\u5b9a\u6027\u2014\u2014\u8fd9\u4e9b\u7b56\u7565\u4e13\u4e3a\u9999\u6e2f\u7684\u670d\u52a1\u5668\u79df\u7528\u4e0e\u6258\u7ba1\u73af\u5883\u91cf\u8eab\u5b9a\u5236\uff1a<\/p>\n
\n
\u5e94\u7528\u4e0e\u6570\u636e\u5e93\u4f18\u5316<\/strong>\uff1a\u901a\u8fc7\u5b9e\u73b0\u5408\u7406\u7684\u5783\u573e\u56de\u6536\u673a\u5236\u548c\u53d8\u91cf\u4f5c\u7528\u57df\uff0c\u91cd\u6784\u5b58\u5728\u6cc4\u6f0f\u7684\u4ee3\u7801\u3002\u5bf9\u4e8e\u57fa\u4e8eCMS\u7684\u7f51\u7ad9\uff0c\u79fb\u9664\u672a\u4f7f\u7528\u63d2\u4ef6\u5e76\u542f\u7528\u9875\u9762\u7f13\u5b58\uff08\u5982Varnish\uff09\uff0c\u51cf\u5c11\u52a8\u6001\u5185\u5bb9\u5904\u7406\u3002\u4f18\u5316\u6570\u636e\u5e93\uff1a\u4e3a\u9891\u7e41\u67e5\u8be2\u7684\u5217\u6dfb\u52a0\u7d22\u5f15\uff0c\u4f7f\u7528LIMIT\u5b50\u53e5\u9650\u5236\u7ed3\u679c\u96c6\uff0c\u914d\u7f6e\u6570\u636e\u5e93\u9650\u5236\uff08\u5982MySQL\u7684`innodb_buffer_pool_size<\/code>\uff09\u3002\u5bf9\u4e8e\u7f13\u5b58\u5c42\uff08Redis\/Memcached\uff09\uff0c\u5b9e\u65bdLRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u6dd8\u6c70\u7b56\u7565\uff0c\u5e76\u8bbe\u7f6e\u5408\u7406\u7684TTL\uff0c\u9632\u6b62\u5185\u5b58\u81a8\u80c0\u3002<\/li>\n`
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