Linux常用命令（二）- 網路

網路監聽的連接埠分析：

[root@localhost ~]# netstat -tulnp
### -t tcp
### -u udp
### -l, --listening display listening server sockets
### -n, --numeric don't resolve names
### -p, --programs display PID/Program name for sockets
Active Internet connections (only servers)Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name   tcp        0      0 0.0.0.0:111                 0.0.0.0:*                   LISTEN      1222/rpcbind        tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      1542/sshd           tcp        0      0 127.0.0.1:631               0.0.0.0:*                   LISTEN      1335/cupsd          tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      1636/master         tcp        0      0 0.0.0.0:58182               0.0.0.0:*                   LISTEN      1287/rpc.statd      tcp        0      0 0.0.0.0:5672                0.0.0.0:*                   LISTEN      1679/qpidd          tcp        0      0 :::111                      :::*                        LISTEN      1222/rpcbind        tcp        0      0 :::22                       :::*                        LISTEN      1542/sshd           tcp        0      0 ::1:631                     :::*                        LISTEN      1335/cupsd          tcp        0      0 ::1:25                      :::*                        LISTEN      1636/master         tcp        0      0 :::39258                    :::*                        LISTEN      1287/rpc.statd      udp        0      0 0.0.0.0:60196               0.0.0.0:*                               1287/rpc.statd      udp        0      0 0.0.0.0:68                  0.0.0.0:*                               1260/dhclient