{"id":62304,"date":"2026-01-19T18:18:09","date_gmt":"2026-01-19T10:18:09","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/62304.html"},"modified":"2026-01-19T18:18:09","modified_gmt":"2026-01-19T10:18:09","slug":"%e7%bd%91%e7%bb%9c%e5%8d%a1%e9%a1%bf%e8%bf%90%e7%bb%b4%e6%8e%92%e6%9f%a5%e6%96%b9%e6%a1%88%ef%bc%9a%e4%bb%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e5%88%b0%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e5%85%a8%e9%93%be","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/62304.html","title":{"rendered":"\u7f51\u7edc\u5361\u987f\u8fd0\u7ef4\u6392\u67e5\u65b9\u6848\uff1a\u4ece\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u7684\u5168\u94fe\u8def\u5904\u7406"},"content":{"rendered":"

\u7f51\u7edc\u5361\u987f\u662f\u8fd0\u7ef4\u4e2d\u8de8\u5c42\u7ea7\u7684\u5e38\u89c1\u95ee\u9898，\u9700\u540c\u65f6\u4ece\u5ba2\u6237\u7aef（\u7528\u6237\u4fa7） \u548c\u670d\u52a1\u5668（\u670d\u52a1\u4fa7）\u53cc\u5411\u6392\u67e5\u2014\u2014\u5ba2\u6237\u7aef\u805a\u7126\u201c\u672c\u5730\u7f51\u7edc\u4e0e\u8bbe\u5907\u662f\u5426\u6b63\u5e38\u201d，\u670d\u52a1\u5668\u805a\u7126\u201c\u94fe\u8def\u3001\u8d44\u6e90\u4e0e\u670d\u52a1\u662f\u5426\u74f6\u9888\u201d，\u4e8c\u8005\u7ed3\u5408\u624d\u80fd\u9ad8\u6548\u5b9a\u4f4d\u6839\u56e0\u3002\u4ee5\u4e0b\u6309\u201c\u5ba2\u6237\u7aef\u6392\u67e5\u2192\u670d\u52a1\u5668\u6392\u67e5\u2192\u8054\u52a8\u9a8c\u8bc1\u201d\u7684\u903b\u8f91，\u62c6\u89e3\u5177\u4f53\u5904\u7406\u6b65\u9aa4\u3002<\/p>\n

\u4e00\u3001\u5ba2\u6237\u7aef\u4fa7\u6392\u67e5：\u5148\u6392\u9664\u7528\u6237\u672c\u5730\u95ee\u9898<\/p>\n

\u5ba2\u6237\u7aef\u662f\u7f51\u7edc\u8bf7\u6c42\u7684\u53d1\u8d77\u7aef，\u5361\u987f\u53ef\u80fd\u6e90\u4e8e\u201c\u672c\u5730\u7269\u7406\u8fde\u63a5\u3001\u7f51\u7edc\u914d\u7f6e\u3001\u8bbe\u5907\u8d44\u6e90\u201d\u7b49\u57fa\u7840\u95ee\u9898，\u9700\u6309\u201c\u5148\u7269\u7406\u540e\u8f6f\u4ef6\u201d\u7684\u987a\u5e8f\u6392\u67e5\u3002<\/p>\n

1. \u7269\u7406\u8fde\u63a5\u4e0e\u57fa\u7840\u8fde\u901a\u6027\u68c0\u67e5（\u6700\u6613\u5ffd\u7565\u7684\u70b9）<\/p>\n

– \u6709\u7ebf\u8fde\u63a5：\u68c0\u67e5\u7f51\u7ebf\u662f\u5426\u677e\u52a8\u3001\u6c34\u6676\u5934\u662f\u5426\u6c27\u5316（\u53ef\u66f4\u6362\u7f51\u7ebf\u6d4b\u8bd5）；\u67e5\u770b\u7f51\u5361\u6307\u793a\u706f（\u6b63\u5e38\u5e94\u7eff\u706f\u5e38\u4eae\u3001\u9ec4\u706f\u95ea\u70c1，\u7184\u706d\u6216\u5e38\u7ea2\u8bf4\u660e\u786c\u4ef6\u6545\u969c）\u3002\u00a0<\/p>\n

– \u65e0\u7ebf\u8fde\u63a5：\u00a0<\/p>\n

\u00a0 – \u7528\u624b\u673a\/\u7535\u8111\u9760\u8fd1\u8def\u7531\u5668，\u6d4b\u8bd5\u4fe1\u53f7\u5f3a\u5ea6（WiFi\u4fe1\u53f7＜-70dBm\u65f6\u4fe1\u53f7\u5f31，\u6613\u5361\u987f）；\u00a0<\/p>\n

\u00a0 – \u5207\u6362WiFi\u9891\u6bb5（2.4GHz\u6297\u5e72\u6270\u5f31\u4f46\u8986\u76d6\u5e7f，5GHz\u901f\u7387\u5feb\u4f46\u8986\u76d6\u8fd1，\u5361\u987f\u65f6\u62a5\u9519\u201c\u4fe1\u9053\u62e5\u5835\u201d\u53ef\u5207\u6362\u9891\u6bb5）；\u00a0<\/p>\n

\u00a0 – \u6392\u9664\u540c\u9891\u6bb5\u5e72\u6270（\u5982\u9644\u8fd1\u5927\u91cf\u8def\u7531\u5668\u7528\u540c\u4e00\u4fe1\u9053，\u7528WiFi\u5206\u6790\u4eea\u5de5\u5177\u67e5\u770b\u4fe1\u9053\u5360\u7528\u7387，\u9009\u62e9\u7a7a\u95f2\u4fe1\u9053）\u3002\u00a0<\/p>\n

– \u57fa\u7840\u8fde\u901a\u6027\u6d4b\u8bd5：\u00a0<\/p>\n

\u00a0 – \u6267\u884c `ping \u7f51\u5173IP`（\u5982 `ping 192.168.1.1`），\u82e5\u4e22\u5305\u7387＞1%\u6216\u5ef6\u8fdf＞50ms，\u8bf4\u660e\u5ba2\u6237\u7aef\u5230\u7f51\u5173\u7684\u94fe\u8def\u6709\u95ee\u9898（\u5982\u8def\u7531\u5668\u7aef\u53e3\u6545\u969c）；\u00a0<\/p>\n

\u00a0 – \u6267\u884c `ping \u516c\u7f51IP`（\u5982 `ping 8.8.8.8`），\u82e5\u7f51\u5173\u901a\u4f46\u516c\u7f51\u4e0d\u901a，\u8bf4\u660e\u8fd0\u8425\u5546\u94fe\u8def\u6216DNS\u89e3\u6790\u5f02\u5e38\u3002<\/p>\n

\n

2. \u7f51\u7edc\u914d\u7f6e\u4e0e\u89e3\u6790\u6392\u67e5（\u5730\u5740\u4e0e\u57df\u540d\u95ee\u9898）<\/p>\n

– IP\u5730\u5740\u4e0e\u7f51\u5173\u914d\u7f6e：\u00a0<\/p>\n

\u00a0 – \u5ba2\u6237\u7aef\u6267\u884c `ipconfig`（Windows）\u6216 `ifconfig`（Linux\/macOS），\u67e5\u770b\u662f\u5426\u83b7\u53d6\u5230\u6b63\u786eIP（\u5982\u9759\u6001IP\u51b2\u7a81\u4f1a\u5bfc\u81f4\u201c\u65f6\u901a\u65f6\u65ad\u201d，\u52a8\u6001IP\u9700\u786e\u8ba4DHCP\u670d\u52a1\u5668\u662f\u5426\u6b63\u5e38\u5206\u914d\u5730\u5740）；\u00a0<\/p>\n

\u00a0 – \u68c0\u67e5\u7f51\u5173\u662f\u5426\u6b63\u786e（\u5982\u8bef\u914d\u7f6e\u5176\u4ed6\u7f51\u6bb5\u7f51\u5173，\u4f1a\u5bfc\u81f4\u65e0\u6cd5\u8bbf\u95ee\u5916\u7f51），\u53ef\u901a\u8fc7 `route print`（Windows）\u6216 `route -n`（Linux）\u67e5\u770b\u8def\u7531\u8868，\u786e\u8ba4\u9ed8\u8ba4\u8def\u7531\u6307\u5411\u6b63\u786e\u7f51\u5173\u3002\u00a0<\/p>\n

– DNS\u89e3\u6790\u6392\u67e5：\u00a0<\/p>\n

\u00a0 – \u5361\u987f\u82e5\u8868\u73b0\u4e3a\u201c\u6253\u5f00\u7f51\u9875\u6162\u3001\u57df\u540d\u627e\u4e0d\u5230\u201d，\u6267\u884c `nslookup \u76ee\u6807\u57df\u540d`（\u5982 `nslookup baidu.com`），\u67e5\u770b\u89e3\u6790\u662f\u5426\u5ef6\u8fdf（\u6b63\u5e38＜100ms）\u6216\u8fd4\u56de\u9519\u8befIP；\u00a0<\/p>\n

\u00a0 – \u82e5\u89e3\u6790\u6162，\u66f4\u6362\u516c\u5171DNS（\u5982\u963f\u91ccDNS：223.5.5.5，\u8c37\u6b4cDNS：8.8.8.8），\u6392\u9664\u672c\u5730DNS\u670d\u52a1\u5668\u6545\u969c\u3002<\/p>\n

\n

3. \u5ba2\u6237\u7aef\u8bbe\u5907\u8d44\u6e90\u4e0e\u5e94\u7528\u68c0\u67e5（\u672c\u5730\u6027\u80fd\u74f6\u9888）<\/p>\n

– \u8bbe\u5907\u786c\u4ef6\u8d44\u6e90：\u00a0<\/p>\n

\u00a0 – Windows\u6253\u5f00\u201c\u4efb\u52a1\u7ba1\u7406\u5668\u201d\u2192\u201c\u6027\u80fd\u201d，Linux\/macOS\u6267\u884c `top`，\u67e5\u770bCPU（\u5360\u7528＞80%\u4f1a\u5f71\u54cd\u7f51\u7edc\u8bf7\u6c42\u5904\u7406）\u3001\u5185\u5b58（\u4f7f\u7528\u7387＞90%\u4f1a\u5bfc\u81f4\u5e94\u7528\u5361\u987f）\u3001\u78c1\u76d8I\/O（\u8bfb\u5199\u901f\u7387＞\u78c1\u76d8\u5cf0\u503c\u4f1a\u62d6\u6162\u7f51\u7edc\u5e94\u7528）；\u00a0<\/p>\n

\u00a0 – \u91cd\u70b9\u6392\u67e5\u540e\u53f0\u8fdb\u7a0b（\u5982P2P\u4e0b\u8f7d\u3001\u5927\u6587\u4ef6\u540c\u6b65\u5de5\u5177，\u4f1a\u5360\u7528\u5927\u91cf\u5e26\u5bbd，\u5bfc\u81f4\u5176\u4ed6\u5e94\u7528\u5361\u987f）\u3002\u00a0<\/p>\n

– \u5e94\u7528\u5c42\u9762\u95ee\u9898：\u00a0<\/p>\n

\u00a0 – \u5355\u4e2a\u5e94\u7528\u5361\u987f（\u5982\u6d4f\u89c8\u5668\u6253\u5f00\u7279\u5b9a\u7f51\u9875\u6162）：\u6e05\u9664\u5e94\u7528\u7f13\u5b58（\u6d4f\u89c8\u5668\u6e05\u9664Cookie\u3001DNS\u7f13\u5b58）\u3001\u7981\u7528\u4ee3\u7406（\u8bef\u5f00\u4ee3\u7406\u4f1a\u5bfc\u81f4\u6d41\u91cf\u7ed5\u8def）\u3001\u66f4\u6362\u5e94\u7528\u7248\u672c（\u65e7\u7248\u672c\u53ef\u80fd\u5b58\u5728\u7f51\u7edc\u517c\u5bb9\u6027\u95ee\u9898）；\u00a0<\/p>\n

\u00a0 – \u6240\u6709\u5e94\u7528\u5361\u987f：\u68c0\u67e5\u662f\u5426\u6709\u9632\u706b\u5899\/\u6740\u6bd2\u8f6f\u4ef6\u62e6\u622a\u7f51\u7edc（\u4e34\u65f6\u5173\u95ed\u6d4b\u8bd5，\u82e5\u6062\u590d\u5219\u6dfb\u52a0\u5e94\u7528\u5230\u767d\u540d\u5355）\u3002<\/p>\n

\n

\u4e8c\u3001\u670d\u52a1\u5668\u4fa7\u6392\u67e5：\u5b9a\u4f4d\u670d\u52a1\u4e0e\u94fe\u8def\u74f6\u9888<\/p>\n

\u670d\u52a1\u5668\u662f\u7f51\u7edc\u8bf7\u6c42\u7684\u63a5\u6536\u7aef，\u5361\u987f\u591a\u6e90\u4e8e\u201c\u94fe\u8def\u4e22\u5305\u3001\u8d44\u6e90\u8fc7\u8f7d\u3001\u670d\u52a1\u914d\u7f6e\u4e0d\u5f53\u201d，\u9700\u6309\u201c\u94fe\u8def\u2192\u8d44\u6e90\u2192\u670d\u52a1\u2192\u7f51\u7edc\u8bbe\u5907\u201d\u7684\u987a\u5e8f\u5c42\u5c42\u62c6\u89e3\u3002<\/p>\n

1. \u7f51\u7edc\u94fe\u8def\u6392\u67e5：\u786e\u8ba4\u7aef\u5230\u7aef\u8fde\u901a\u6027<\/p>\n

– \u8de8\u8282\u70b9\u5ef6\u8fdf\u4e0e\u4e22\u5305\u6d4b\u8bd5：\u00a0<\/p>\n

\u00a0 – \u4ece\u670d\u52a1\u5668\u6267\u884c `ping \u5ba2\u6237\u7aef\u516c\u7f51IP`（\u6216\u5ba2\u6237\u7aefping\u670d\u52a1\u5668IP），\u67e5\u770b\u53cc\u5411\u4e22\u5305\u7387（\u6b63\u5e38\u5e94＜0.1%，\u5ef6\u8fdf＜100ms，\u8de8\u8fd0\u8425\u5546\u94fe\u8def\u5ef6\u8fdf\u53ef\u653e\u5bbd\u81f3200ms）；\u00a0<\/p>\n

\u00a0 – \u7528 `traceroute \u76ee\u6807IP`（Linux）\u6216 `tracert \u76ee\u6807IP`（Windows），\u5b9a\u4f4d\u94fe\u8def\u4e2d\u4e22\u5305\u7684\u8282\u70b9（\u5982\u67d0\u8def\u7531\u5668\u8df3\u6570\u5ef6\u8fdf\u7a81\u589e＞500ms，\u8bf4\u660e\u8be5\u8282\u70b9\u662f\u74f6\u9888，\u9700\u8054\u7cfb\u8fd0\u8425\u5546\u4f18\u5316）\u3002\u00a0<\/p>\n

– \u5e26\u5bbd\u4e0e\u7aef\u53e3\u76d1\u63a7：\u00a0<\/p>\n

\u00a0 – \u7528 `iftop -i \u7f51\u5361\u540d`（\u5982 `iftop -i eth0`）\u5b9e\u65f6\u67e5\u770b\u670d\u52a1\u5668\u7f51\u5361\u5e26\u5bbd\u4f7f\u7528\u60c5\u51b5，\u82e5\u5e26\u5bbd\u5df2\u8fbe\u5cf0\u503c（\u5982100M\u7f51\u5361\u4f7f\u7528\u7387＞95%），\u8bf4\u660e\u5e26\u5bbd\u4e0d\u8db3\u5bfc\u81f4\u5361\u987f，\u9700\u5347\u7ea7\u5e26\u5bbd\u6216\u9650\u6d41\u975e\u6838\u5fc3\u670d\u52a1；\u00a0<\/p>\n

\u00a0 – \u7528 `ss -lntp | grep \u7aef\u53e3\u53f7`（\u5982 `ss -lntp | grep 80`）\u67e5\u770b\u670d\u52a1\u7aef\u53e3\u662f\u5426\u6b63\u5e38\u76d1\u542c，\u6392\u9664\u7aef\u53e3\u88ab\u5360\u7528\u6216\u9632\u706b\u5899\u62e6\u622a（\u6267\u884c `firewall-cmd –list-ports` \u6216 `iptables -L` \u68c0\u67e5\u7aef\u53e3\u767d\u540d\u5355）\u3002<\/p>\n

\n

2. \u670d\u52a1\u5668\u8d44\u6e90\u6392\u67e5：\u907f\u514d\u786c\u4ef6\u62d6\u6162\u7f51\u7edc\u5904\u7406<\/p>\n

– CPU\u4e0e\u5185\u5b58\u8fc7\u8f7d：\u00a0<\/p>\n

\u00a0 – \u6267\u884c `top` \u67e5\u770bCPU\u4f7f\u7528\u7387，\u82e5 `us`（\u7528\u6237\u6001）＞80%（\u5982\u5927\u91cf\u5e76\u53d1\u8bf7\u6c42\u5bfc\u81f4\u670d\u52a1\u8fdb\u7a0b\u5360\u6ee1CPU）\u6216 `sy`（\u5185\u6838\u6001）＞30%（\u5982\u9891\u7e41\u7f51\u7edc\u4e2d\u65ad\u5bfc\u81f4\u5185\u6838\u5904\u7406\u7e41\u5fd9），\u9700\u4f18\u5316\u670d\u52a1\u5e76\u53d1\u903b\u8f91（\u5982\u589e\u52a0\u8fdb\u7a0b\u6570\u3001\u4f7f\u7528\u5f02\u6b65IO）；\u00a0<\/p>\n

\u00a0 – \u67e5\u770b\u5185\u5b58\u4f7f\u7528\u7387，\u82e5 `used`＞90%\u4e14 `buff\/cache` \u5c0f（\u975e\u7f13\u5b58\u5360\u7528），\u53ef\u80fd\u5bfc\u81f4\u670d\u52a1\u65e0\u6cd5\u5206\u914d\u5185\u5b58\u5904\u7406\u65b0\u8bf7\u6c42，\u9700\u6392\u67e5\u5185\u5b58\u6cc4\u6f0f（\u5982Java\u670d\u52a1\u7528 `jmap` \u5206\u6790\u5806\u5185\u5b58，Python\u670d\u52a1\u7528 `memory_profiler` \u5b9a\u4f4d\u6cc4\u6f0f\u70b9）\u3002\u00a0<\/p>\n

– \u78c1\u76d8I\/O\u74f6\u9888：\u00a0<\/p>\n

\u00a0 – \u6267\u884c `iostat -x 1` \u67e5\u770b\u78c1\u76d8 `%util`（\u78c1\u76d8\u7e41\u5fd9\u5ea6，＞80%\u5373\u62e5\u5835）\u548c `await`（I\/O\u7b49\u5f85\u65f6\u95f4，＞50ms\u8bf4\u660e\u78c1\u76d8\u54cd\u5e94\u6162）；\u00a0<\/p>\n

\u00a0 – \u82e5\u78c1\u76d8I\/O\u9ad8，\u6392\u67e5\u662f\u5426\u6709\u5927\u6587\u4ef6\u8bfb\u5199（\u5982\u65e5\u5fd7\u5207\u5272\u4e0d\u53ca\u65f6\u3001\u6570\u636e\u5e93\u5168\u8868\u626b\u63cf），\u4f18\u5316\u65b9\u6848：\u5f00\u542f\u78c1\u76d8\u7f13\u5b58\u3001\u66f4\u6362SSD\u3001\u62c6\u5206I\/O\u5bc6\u96c6\u4efb\u52a1（\u5982\u65e5\u5fd7\u5199\u5165\u5355\u72ec\u78c1\u76d8）\u3002<\/p>\n

\n

3. \u670d\u52a1\u914d\u7f6e\u4e0e\u7f51\u7edc\u53c2\u6570\u4f18\u5316：\u63d0\u5347\u8bf7\u6c42\u5904\u7406\u6548\u7387<\/p>\n

– \u670d\u52a1\u8fde\u63a5\u6570\u4e0e\u8d85\u65f6\u914d\u7f6e：\u00a0<\/p>\n

\u00a0 – \u7528 `netstat -an | grep TIME_WAIT | wc -l` \u67e5\u770bTIME_WAIT\u8fde\u63a5\u6570，\u82e5＞1\u4e07，\u8bf4\u660eTCP\u8fde\u63a5\u56de\u6536\u6162，\u9700\u8c03\u6574\u5185\u6838\u53c2\u6570（\u5982 `echo 1 > \/proc\/sys\/net\/ipv4\/tcp_tw_reuse` \u5f00\u542f\u8fde\u63a5\u590d\u7528）；\u00a0<\/p>\n

\u00a0 – \u68c0\u67e5\u670d\u52a1\u6700\u5927\u8fde\u63a5\u6570（\u5982Nginx\u7684 `worker_connections`\u3001Tomcat\u7684 `maxThreads`），\u82e5\u8fde\u63a5\u6570\u8fbe\u4e0a\u9650，\u9700\u6839\u636e\u670d\u52a1\u5668CPU\u6838\u5fc3\u6570\u8c03\u6574（\u59824\u6838CPU\u53ef\u8bbe `worker_connections 10240`）\u3002\u00a0<\/p>\n

– TCP\u534f\u8bae\u53c2\u6570\u4f18\u5316：\u00a0<\/p>\n

\u00a0 – \u8c03\u6574TCP\u7a97\u53e3\u5927\u5c0f（`net.core.somaxconn = 65535` \u63d0\u9ad8\u6700\u5927\u76d1\u542c\u961f\u5217，`net.ipv4.tcp_window_scaling = 1` \u5f00\u542f\u7a97\u53e3\u81ea\u52a8\u7f29\u653e，\u63d0\u5347\u5927\u6587\u4ef6\u4f20\u8f93\u901f\u7387）；\u00a0<\/p>\n

\u00a0 – \u7f29\u77ed\u8fde\u63a5\u8d85\u65f6（`net.ipv4.tcp_fin_timeout = 30` \u51cf\u5c11TIME_WAIT\u8fde\u63a5\u6ede\u7559\u65f6\u95f4，`net.ipv4.tcp_keepalive_time = 600` \u5feb\u901f\u68c0\u6d4b\u65e0\u6548\u8fde\u63a5）\u3002<\/p>\n

\n

4. \u7f51\u7edc\u8bbe\u5907\u6392\u67e5：\u670d\u52a1\u5668\u51fa\u53e3\u5c42\u95ee\u9898<\/p>\n

– \u4ea4\u6362\u673a\/\u8def\u7531\u5668\u68c0\u67e5：\u00a0<\/p>\n

\u00a0 – \u767b\u5f55\u670d\u52a1\u5668\u6240\u5728\u4ea4\u6362\u673a，\u67e5\u770b\u7aef\u53e3\u6d41\u91cf（`display interface GigabitEthernet 0\/1`），\u82e5\u7aef\u53e3 `InErrors`\/`OutErrors` \u8ba1\u6570\u589e\u957f，\u8bf4\u660e\u7aef\u53e3\u786c\u4ef6\u6545\u969c\u6216\u94fe\u8def\u677e\u52a8，\u9700\u66f4\u6362\u7aef\u53e3；\u00a0<\/p>\n

\u00a0 – \u68c0\u67e5\u8def\u7531\u5668\u8def\u7531\u8868（`display ip routing-table`），\u786e\u8ba4\u670d\u52a1\u5668\u5230\u5ba2\u6237\u7aef\u7684\u8def\u7531\u662f\u5426\u6b63\u786e，\u6392\u9664\u8def\u7531\u9ed1\u6d1e（\u5982\u8def\u7531\u914d\u7f6e\u9519\u8bef\u5bfc\u81f4\u6d41\u91cf\u4e22\u5931）\u3002\u00a0<\/p>\n

– \u8d1f\u8f7d\u5747\u8861\u5668（\u5982Nginx\u3001F5）：\u00a0<\/p>\n

\u00a0 – \u67e5\u770b\u8d1f\u8f7d\u5747\u8861\u5668\u7684\u5e76\u53d1\u8fde\u63a5\u6570\u548c\u8f6c\u53d1\u5ef6\u8fdf，\u82e5\u67d0\u8282\u70b9\u8f6c\u53d1\u5ef6\u8fdf＞200ms，\u8bf4\u660e\u8282\u70b9\u8fc7\u8f7d，\u9700\u8c03\u6574\u8d1f\u8f7d\u7b56\u7565（\u5982\u52a0\u6743\u8f6e\u8be2\u6539\u4e3a\u6700\u5c0f\u8fde\u63a5\u6570）；\u00a0<\/p>\n

\u00a0 – \u68c0\u67e5\u5065\u5eb7\u68c0\u67e5\u914d\u7f6e，\u82e5\u540e\u7aef\u670d\u52a1\u5668\u9891\u7e41\u201c\u4e0b\u7ebf\u201d，\u8bf4\u660e\u5065\u5eb7\u68c0\u67e5\u9608\u503c\u8fc7\u4e25（\u5982\u8d85\u65f6\u65f6\u95f4\u8fc7\u77ed），\u9700\u8c03\u6574 `timeout` \u548c `max_fails` \u53c2\u6570\u3002<\/p>\n

\n

\u4e09\u3001\u8054\u52a8\u9a8c\u8bc1：\u786e\u8ba4\u5361\u987f\u6839\u56e0\u4e0e\u9a8c\u8bc1\u89e3\u51b3\u65b9\u6848<\/p>\n

1. \u6839\u56e0\u5b9a\u4f4d\u903b\u8f91：\u00a0<\/p>\n

\u00a0\u00a0 – \u82e5\u5ba2\u6237\u7aefping\u7f51\u5173\u901a\u3001ping\u670d\u52a1\u5668\u4e22\u5305\u2192\u670d\u52a1\u5668\u4fa7\u94fe\u8def\u6216\u7f51\u7edc\u8bbe\u5907\u95ee\u9898；\u00a0<\/p>\n

\u00a0\u00a0 – \u82e5\u5ba2\u6237\u7aefping\u670d\u52a1\u5668\u901a\u3001\u4f46\u8bbf\u95ee\u670d\u52a1\u6162\u2192\u670d\u52a1\u5668\u8d44\u6e90\u6216\u670d\u52a1\u914d\u7f6e\u95ee\u9898；\u00a0<\/p>\n

\u00a0\u00a0 – \u82e5\u90e8\u5206\u5ba2\u6237\u7aef\u5361\u987f\u3001\u90e8\u5206\u6b63\u5e38\u2192\u5ba2\u6237\u7aef\u4fa7\u4e2a\u4f53\u95ee\u9898（\u5982\u8bbe\u5907\u914d\u7f6e\u3001\u5c40\u90e8\u7f51\u7edc\u5e72\u6270）；\u00a0<\/p>\n

\u00a0\u00a0 – \u82e5\u6240\u6709\u5ba2\u6237\u7aef\u5361\u987f\u2192\u670d\u52a1\u5668\u4fa7\u5168\u5c40\u95ee\u9898（\u5982\u5e26\u5bbd\u6ee1\u3001\u670d\u52a1\u5b95\u673a）\u3002<\/p>\n

\n

2. \u89e3\u51b3\u65b9\u6848\u9a8c\u8bc1：\u00a0<\/p>\n

\u00a0\u00a0 – \u4e34\u65f6\u7f13\u89e3：\u5982\u5e26\u5bbd\u4e0d\u8db3\u53ef\u4e34\u65f6\u9650\u6d41\u975e\u6838\u5fc3\u670d\u52a1（`iptables -A OUTPUT -p tcp –dport \u975e\u6838\u5fc3\u7aef\u53e3 -m limit –limit 100\/s -j ACCEPT`），CPU\u8fc7\u8f7d\u53ef\u91cd\u542f\u670d\u52a1\u91ca\u653e\u8d44\u6e90；\u00a0<\/p>\n

\u00a0\u00a0 – \u957f\u671f\u4f18\u5316：\u9a8c\u8bc1\u4f18\u5316\u6548\u679c（\u5982\u8c03\u6574TCP\u53c2\u6570\u540e，\u7528 `ab -n 1000 -c 100 \u670d\u52a1\u5668IP` \u6d4b\u8bd5\u5e76\u53d1\u8bf7\u6c42\u5ef6\u8fdf，\u82e5\u4ece500ms\u964d\u81f3100ms，\u8bf4\u660e\u4f18\u5316\u6709\u6548）\u3002<\/p>\n

\n

\u603b\u7ed3：\u8fd0\u7ef4\u5904\u7406\u7f51\u7edc\u5361\u987f\u7684\u6838\u5fc3\u903b\u8f91<\/p>\n

\u7f51\u7edc\u5361\u987f\u6392\u67e5\u7684\u5173\u952e\u662f\u201c\u5148\u5206\u7aef\u5b9a\u4f4d，\u518d\u8054\u52a8\u9a8c\u8bc1\u201d：\u00a0<\/p>\n

– \u5ba2\u6237\u7aef\u4fa7：\u4f18\u5148\u6392\u9664\u7269\u7406\u8fde\u63a5\u3001\u57fa\u7840\u914d\u7f6e\u3001\u8bbe\u5907\u8d44\u6e90\u95ee\u9898（\u7b80\u5355\u4e14\u9ad8\u9891）；\u00a0<\/p>\n

– \u670d\u52a1\u5668\u4fa7：\u4ece\u201c\u94fe\u8def\u2192\u8d44\u6e90\u2192\u670d\u52a1\u2192\u7f51\u7edc\u8bbe\u5907\u201d\u5c42\u5c42\u6df1\u5165，\u7528\u5de5\u5177（`ping`\/`traceroute`\/`top`\/`iftop`）\u91cf\u5316\u6307\u6807，\u907f\u514d\u201c\u51ed\u611f\u89c9\u5224\u65ad\u201d；\u00a0<\/p>\n

– \u6700\u7ec8\u901a\u8fc7\u201c\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u53cc\u5411\u6d4b\u8bd5\u201d\u786e\u8ba4\u6839\u56e0，\u518d\u843d\u5730\u89e3\u51b3\u65b9\u6848\u5e76\u9a8c\u8bc1\u6548\u679c，\u5f62\u6210\u201c\u6392\u67e5-\u89e3\u51b3-\u9a8c\u8bc1\u201d\u7684\u95ed\u73af\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u7f51\u7edc\u5361\u987f\u662f\u8fd0\u7ef4\u4e2d\u8de8\u5c42\u7ea7\u7684\u5e38\u89c1\u95ee\u9898，\u9700\u540c\u65f6\u4ece\u5ba2\u6237\u7aef（\u7528\u6237\u4fa7） \u548c\u670d\u52a1\u5668（\u670d\u52a1\u4fa7）\u53cc\u5411\u6392\u67e5\u2014\u2014\u5ba2\u6237\u7aef\u805a\u7126\u201c\u672c\u5730\u7f51\u7edc\u4e0e\u8bbe\u5907\u662f\u5426\u6b63\u5e38\u201d，\u670d\u52a1\u5668\u805a\u7126\u201c\u94fe\u8def\u3001\u8d44\u6e90\u4e0e\u670d\u52a1\u662f\u5426\u74f6\u9888\u201d，\u4e8c\u8005\u7ed3\u5408\u624d\u80fd\u9ad8\u6548\u5b9a\u4f4d\u6839\u56e0\u3002\u4ee5\u4e0b\u6309\u201c\u5ba2\u6237\u7aef\u6392\u67e5\u2192\u670d\u52a1\u5668\u6392\u67e5\u2192\u8054\u52a8\u9a8c\u8bc1\u201d\u7684\u903b\u8f91，\u62c6\u89e3\u5177\u4f53\u5904\u7406\u6b65\u9aa4\u3002\u4e00\u3001\u5ba2\u6237\u7aef\u4fa7\u6392\u67e5：\u5148\u6392\u9664\u7528\u6237\u672c\u5730\u95ee\u9898\u5ba2\u6237\u7aef\u662f\u7f51\u7edc\u8bf7\u6c42\u7684\u53d1\u8d77\u7aef，\u5361\u987f\u53ef\u80fd\u6e90\u4e8e\u201c\u672c<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[43,78,44],"topic":[],"class_list":["post-62304","post","type-post","status-publish","format-standard","hentry","category-server","tag-43","tag-78","tag-44"],"yoast_head":"\n\u7f51\u7edc\u5361\u987f\u8fd0\u7ef4\u6392\u67e5\u65b9\u6848\uff1a\u4ece\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u7684\u5168\u94fe\u8def\u5904\u7406 - 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