{"id":63150,"date":"2025-04-29T17:13:35","date_gmt":"2025-04-29T09:13:35","guid":{"rendered":"https:\/\/fwq.ai\/blog\/63150\/"},"modified":"2025-04-29T17:13:35","modified_gmt":"2025-04-29T09:13:35","slug":"linux%e6%9f%a5%e7%9c%8b%e7%ab%af%e5%8f%a3%e6%98%af%e5%90%a6%e5%bc%80%e6%94%be-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/63150\/","title":{"rendered":"linux\u67e5\u770b\u7aef\u53e3\u662f\u5426\u5f00\u653e"},"content":{"rendered":"

\n linux\u67e5\u770b\u7aef\u53e3\u662f\u5426\u5f00\u653e\u7684\u65b9\u6cd5\uff1a1\u3001\u4f7f\u7528netstat\u547d\u4ee4\uff1b2\u3001\u4f7f\u7528ss\u547d\u4ee4\uff1b3\u3001\u4f7f\u7528lsof\u547d\u4ee4\uff1b4\u3001\u4f7f\u7528telnet\u547d\u4ee4\u3002\n<\/p><\/blockquote>\n

\"linux\u67e5\u770b\u7aef\u53e3\u662f\u5426\u5f00\u653e\u63d2\u56fe\"<\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u67e5\u770b\u7aef\u53e3\u662f\u5426\u5f00\u653e\u662f\u7f51\u7edc\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u4efb\u52a1\u4e4b\u4e00\u3002\u901a\u8fc7\u68c0\u67e5\u7aef\u53e3\u7684\u5f00\u653e\u72b6\u6001\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u4e86\u89e3\u54ea\u4e9b\u670d\u52a1\u6b63\u5728\u8fd0\u884c\uff0c\u4ee5\u53ca\u7cfb\u7edf\u53ef\u80fd\u9762\u4e34\u7684\u5b89\u5168\u98ce\u9669\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5728Linux\u4e2d\u67e5\u770b\u7aef\u53e3\u662f\u5426\u5f00\u653e\u7684\u51e0\u79cd\u65b9\u6cd5\u3002<\/p>\n

\u4e00\u3001\u4f7f\u7528netstat\u547d\u4ee4<\/strong><\/p>\n

netstat\u547d\u4ee4\u662fLinux\u4e2d\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u8fde\u63a5\u3001\u8def\u7531\u8868\u3001\u63a5\u53e3\u7edf\u8ba1\u7b49\u4fe1\u606f\u7684\u5f3a\u5927\u5de5\u5177\u3002\u901a\u8fc7netstat\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u662f\u5426\u5904\u4e8e\u76d1\u542c\u72b6\u6001\uff0c\u4ece\u800c\u5224\u65ad\u7aef\u53e3\u662f\u5426\u5f00\u653e\u3002<\/p>\n

1\u3001\u67e5\u770b\u6240\u6709\u6b63\u5728\u76d1\u542c\u7684TCP\u548cUDP\u7aef\u53e3<\/strong><\/p>\n

\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

netstat -tuln<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8be5\u547d\u4ee4\u5c06\u663e\u793a\u6240\u6709\u6b63\u5728\u76d1\u542c\u7684TCP\u548cUDP\u7aef\u53e3\u3002\u5176\u4e2d\uff0c-t\u9009\u9879\u8868\u793a\u663e\u793aTCP\u7aef\u53e3\uff0c-u\u9009\u9879\u8868\u793a\u663e\u793aUDP\u7aef\u53e3\uff0c-l\u9009\u9879\u8868\u793a\u4ec5\u663e\u793a\u76d1\u542c\u7684\u7aef\u53e3\uff0c-n\u9009\u9879\u8868\u793a\u4ee5\u6570\u5b57\u5f62\u5f0f\u663e\u793a\u7aef\u53e3\u53f7\u3002<\/p>\n
2\u3001\u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u662f\u5426\u5904\u4e8e\u76d1\u542c\u72b6\u6001<\/strong><\/p>\n
\u5982\u679c\u4f60\u53ea\u60f3\u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u662f\u5426\u5904\u4e8e\u76d1\u542c\u72b6\u6001\uff0c\u53ef\u4ee5\u5728netstat\u547d\u4ee4\u540e\u9762\u52a0\u4e0agrep\u547d\u4ee4\u8fdb\u884c\u8fc7\u6ee4\u3002\u4f8b\u5982\uff0c\u8981\u67e5\u770b80\u7aef\u53e3\u662f\u5426\u5f00\u653e\uff0c\u53ef\u4ee5\u6267\u884c\uff1a<\/p>\n
netstat -tuln | grep :80<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5982\u679c\u8f93\u51fa\u4e2d\u5305\u542b\u4e8680\u7aef\u53e3\u7684\u4fe1\u606f\uff0c\u5e76\u4e14\u72b6\u6001\u4e3aLISTEN\uff0c\u5219\u8868\u793a\u8be5\u7aef\u53e3\u5904\u4e8e\u76d1\u542c\u72b6\u6001\uff0c\u5373\u7aef\u53e3\u5f00\u653e\u3002<\/p>\n
\u4e8c\u3001\u4f7f\u7528ss\u547d\u4ee4<\/strong><\/p>\n
ss\u547d\u4ee4\u662fnetstat\u547d\u4ee4\u7684\u66ff\u4ee3\u5de5\u5177\uff0c\u5177\u6709\u66f4\u5feb\u7684\u901f\u5ea6\u548c\u66f4\u591a\u7684\u529f\u80fd\u3002\u5b83\u4e5f\u53ef\u4ee5\u7528\u6765\u67e5\u770b\u7cfb\u7edf\u4e0a\u7684\u7aef\u53e3\u662f\u5426\u5f00\u653e\u3002<\/p>\n
1\u3001\u67e5\u770b\u6240\u6709\u6b63\u5728\u76d1\u542c\u7684TCP\u548cUDP\u7aef\u53e3<\/strong><\/p>\n
\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
ss -tuln<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8be5\u547d\u4ee4\u4e0enetstat -tuln\u7684\u529f\u80fd\u76f8\u540c\uff0c\u5c06\u663e\u793a\u6240\u6709\u6b63\u5728\u76d1\u542c\u7684TCP\u548cUDP\u7aef\u53e3\u3002<\/p>\n
2\u3001\u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u662f\u5426\u5904\u4e8e\u76d1\u542c\u72b6\u6001<\/strong><\/p>\n
\u540c\u6837\u5730\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528grep\u547d\u4ee4\u8fc7\u6ee4\u7279\u5b9a\u7aef\u53e3\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u67e5\u770b80\u7aef\u53e3\u662f\u5426\u5f00\u653e\uff1a<\/p>\n
ss -tuln | grep :80<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5982\u679c\u8f93\u51fa\u4e2d\u5305\u542b80\u7aef\u53e3\u4e14\u72b6\u6001\u4e3aLISTEN\uff0c\u5219\u8868\u793a\u8be5\u7aef\u53e3\u5f00\u653e\u3002<\/p>\n
\u4e09\u3001\u4f7f\u7528lsof\u547d\u4ee4<\/strong><\/p>\n
lsof\u547d\u4ee4\u7528\u4e8e\u5217\u51fa\u5f53\u524d\u7cfb\u7edf\u6253\u5f00\u7684\u6587\u4ef6\u548c\u8fdb\u7a0b\u4fe1\u606f\uff0c\u5305\u62ec\u7f51\u7edc\u8fde\u63a5\u3002\u867d\u7136\u5b83\u4e3b\u8981\u7528\u4e8e\u67e5\u770b\u8fdb\u7a0b\u6253\u5f00\u7684\u6587\u4ef6\uff0c\u4f46\u4e5f\u53ef\u4ee5\u7528\u6765\u68c0\u67e5\u7aef\u53e3\u662f\u5426\u5f00\u653e\u3002<\/p>\n
1\u3001\u67e5\u770b\u6240\u6709\u5f00\u653e\u7684\u7aef\u53e3<\/strong><\/p>\n
\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
lsof -i<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8be5\u547d\u4ee4\u5c06\u663e\u793a\u6240\u6709\u6253\u5f00\u7684\u7f51\u7edc\u8fde\u63a5\uff0c\u5305\u62ec\u76d1\u542c\u7684\u7aef\u53e3\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u67e5\u770b\u8f93\u51fa\u4e2d\u7684\u7aef\u53e3\u53f7\u6765\u5224\u65ad\u54ea\u4e9b\u7aef\u53e3\u662f\u5f00\u653e\u7684\u3002<\/p>\n
2\u3001\u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u662f\u5426\u5f00\u653e<\/strong><\/p>\n
\u5982\u679c\u4f60\u53ea\u60f3\u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u662f\u5426\u5f00\u653e\uff0c\u53ef\u4ee5\u5728lsof\u547d\u4ee4\u540e\u9762\u52a0\u4e0a\u7aef\u53e3\u53f7\u8fdb\u884c\u8fc7\u6ee4\u3002\u4f8b\u5982\uff0c\u67e5\u770b80\u7aef\u53e3\u662f\u5426\u5f00\u653e\uff1a<\/p>\n
lsof -i :80<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5982\u679c\u8f93\u51fa\u4e2d\u5305\u542b80\u7aef\u53e3\u7684\u4fe1\u606f\uff0c\u5219\u8868\u793a\u8be5\u7aef\u53e3\u5f00\u653e\u3002<\/p>\n
\u56db\u3001\u4f7f\u7528telnet\u547d\u4ee4<\/strong><\/p>\n
telnet\u547d\u4ee4\u662f\u4e00\u4e2a\u7f51\u7edc\u8bca\u65ad\u5de5\u5177\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u68c0\u67e5\u7aef\u53e3\u662f\u5426\u5f00\u653e\u3002\u901a\u8fc7\u5c1d\u8bd5\u8fde\u63a5\u5230\u76ee\u6807\u7aef\u53e3\uff0c\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u5219\u8868\u793a\u7aef\u53e3\u5f00\u653e\uff1b\u5982\u679c\u8fde\u63a5\u5931\u8d25\uff0c\u5219\u8868\u793a\u7aef\u53e3\u5173\u95ed\u6216\u88ab\u9632\u706b\u5899\u963b\u6b62\u3002<\/p>\n
\u4f7f\u7528telnet\u547d\u4ee4\u68c0\u67e5\u7aef\u53e3\u662f\u5426\u5f00\u653e\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
telnet  <\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f8b\u5982\uff0c\u8981\u68c0\u67e5\u8fdc\u7a0b\u4e3b\u673a192.168.0.1\u4e0a\u768480\u7aef\u53e3\u662f\u5426\u5f00\u653e\uff0c\u53ef\u4ee5\u6267\u884c\uff1a<\/p>\n
telnet 192.168.0.1 80<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u4f60\u5c06\u770b\u5230telnet\u63d0\u793a\u7b26\uff1b\u5982\u679c\u8fde\u63a5\u5931\u8d25\uff0c\u901a\u5e38\u4f1a\u663e\u793a\u4e00\u4e2a\u9519\u8bef\u6d88\u606f\uff0c\u5982\u201cConnection refused\u201d\u6216\u201cConnection timed out\u201d\u3002<\/p>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0ctelnet\u547d\u4ee4\u53ef\u80fd\u4e0d\u5728\u6240\u6709Linux\u53d1\u884c\u7248\u4e2d\u9ed8\u8ba4\u5b89\u88c5\u3002\u5982\u679c\u4f60\u7684\u7cfb\u7edf\u4e2d\u6ca1\u6709telnet\u547d\u4ee4\uff0c\u4f60\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528nc\uff08netcat\uff09\u547d\u4ee4\u4f5c\u4e3a\u66ff\u4ee3\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u7684\u529f\u80fd\u3002<\/p>\n
\u4e94\u3001\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
\u5728\u6267\u884c\u4e0a\u8ff0\u547d\u4ee4\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u4ee5root\u6743\u9650\u8fd0\u884c\uff0c\u4ee5\u4fbf\u83b7\u53d6\u5b8c\u6574\u7684\u7aef\u53e3\u4fe1\u606f\u3002<\/p>\n
\u67d0\u4e9b\u547d\u4ee4\u53ef\u80fd\u9700\u8981\u5b89\u88c5\u76f8\u5e94\u7684\u8f6f\u4ef6\u5305\u624d\u80fd\u4f7f\u7528\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u7cfb\u7edf\u7684\u5305\u7ba1\u7406\u5668\uff08\u5982apt\u3001yum\u7b49\uff09\u6765\u5b89\u88c5\u6240\u9700\u7684\u8f6f\u4ef6\u3002<\/p>\n
\u68c0\u67e5\u7aef\u53e3\u662f\u5426\u5f00\u653e\u53ea\u662f\u7f51\u7edc\u5b89\u5168\u7ba1\u7406\u7684\u4e00\u90e8\u5206\u3002\u9664\u4e86\u67e5\u770b\u7aef\u53e3\u72b6\u6001\u5916\uff0c\u8fd8\u5e94\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u8865\u4e01\u3001\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3001\u9650\u5236\u4e0d\u5fc5\u8981\u7684\u670d\u52a1\u8fd0\u884c\u7b49\uff0c\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0cLinux\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u67e5\u770b\u7aef\u53e3\u662f\u5426\u5f00\u653e\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u548c\u4e60\u60ef\u9009\u62e9\u5408\u9002\u7684\u547d\u4ee4\u6216\u5de5\u5177\u6765\u6267\u884c\u6b64\u4efb\u52a1\u3002\u540c\u65f6\uff0c\u4e5f\u5e94\u6ce8\u610f\u4fdd\u62a4\u7cfb\u7edf\u7684\u5b89\u5168\u6027\uff0c\u907f\u514d\u6f5c\u5728\u7684\u5b89\u5168\u98ce\u9669\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u67e5\u770b\u7aef\u53e3\u662f\u5426\u5f00\u653e\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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netstat\u547d\u4ee4\u662fLinux\u4e2d\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u8fde\u63a5\u3001\u8def\u7531\u8868\u3001\u63a5\u53e3\u7edf\u8ba1\u7b49\u4fe1\u606f\u7684\u5f3a\u5927\u5de5\u5177\u3002\u901a\u8fc7netstat\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u67e5\u770b\u7279\u5b9a\u7aef\u53e3\u662f\u5426\u5904\u4e8e\u76d1\u542c\u72b6\u6001\uff0c\u4ece\u800c\u5224\u65ad\u7aef\u53e3\u662f\u5426\u5f00\u653e\u3002 1\u3001\u67e5\u770b\u6240\u6709\u6b63\u5728\u76d1\u542c\u7684TCP\u548cUDP\u7aef\u53e3 \u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a netstat -tuln \u767b\u5f55\u540e\u590d\u5236 \u8be5\u547d\u4ee4\u5c06\u663e\u793a\u6240\u6709\u6b63\u5728\u76d1\u542c\u7684TCP\u548cUDP\u7aef\u53e3\u3002\u5176\u4e2d\uff0c-t\u9009\u9879\u8868\u793a\u663e\u793aTCP\u7aef\u53e3\uff0c-u\u9009\u9879\u8868\u793a\u663e\u793aUDP\u7aef\u53e3\uff0c-l\u9009\u9879\u8868\u793a\u4ec5\u663e\u793a\u76d1\u542c\u7684\u7aef\u53e3\uff0c-n\u9009\u9879\u8868\u793a\u4ee5\u6570\u5b57\u5f62\u5f0f\u663e\u793a\u7aef\u53e3\u53f7\u3002 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