linux 查看内网IP和外网IP

centos7 查看内网的ip，使用ifconfig 或在后面加上参数，都可以查看内网的ip，下面的10.105.33.17 即是内网的ip

[root@VM_33_17_centos ~]#ifconfig -a
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.105.33.17  netmask 255.255.192.0  broadcast 10.105.63.255
        ether 52:54:00:75:e5:57  txqueuelen 1000  (Ethernet)
        RX packets 155966  bytes 15667311 (14.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 44086  bytes 8285980 (7.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 0  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

 

查看外网的ip，使用curl ifconfig.me命令可以查看外网的ip，

[root@VM_33_17_centos ~]#curl ifconfig.me