linux如何查看端口被谁占用

原文地址：http://www.blogjava.net/kxx129/archive/2013/05/13/399206.html

使用 netstat 进行查看！

>netstat -noap | grep 80 | grep tcp

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

-----------------------------------------------------------------------------------------------------------------

tcp 74160 138880 127.0.0.1:6150 127.0.0.1:6150 ESTABLISHED 3145/tnslsnr unkn-4 (52.04/0/0)

tcp 0 0 :::8009 :::* LISTEN 31550/java off (0.00/0/0)

tcp 0 0 :::8080 :::* LISTEN 31550/java off (0.00/0/0)

tcp 0 0 :::80 :::* LISTEN 24675/httpd off (0.00/0/0)

…

使用 lsof 进行查看！

谁在使用tcp8080端口

>/usr/sbin/lsof -i tcp:8080

COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME

------------------------------------------------------

java 31550 root 109u IPv6 78687600 TCP *:webcache (LISTEN)

谁在使用22端口

>/usr/sbin/lsof -i :22

COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME

sshd 2883 root 3u IPv6 7642 TCP *:ssh (LISTEN)

>/usr/sbin/lsof -i | grep http

uselib24 15272 apache 4u IPv6 217212 TCP *:http (LISTEN)

uselib24 15272 apache 6u IPv6 217217 TCP *:https (LISTEN)