Linux netstat -anlp 命令查看本机监听的端口号

#sudo netstat -anlp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      30/sshd
tcp6       0      0 :::22                   :::*                    LISTEN      30/sshd