CenOS 7.X 如何安装ifconfig进行网卡信息查看

21运维 原创文章，转载请注明出处。
昨天安装了一个测试用的centos 7.2，结果无法使用ifconfig 信息，which也没有找到这个命令。直接测试了下yum install ifconfig -y是不正确的。于是网上搜索了下资料安装ifconfig使用，方法如下：
root登录系统：
yum install -y net-tools\*
即可

Complete!
[root@docker5 init.d]# ifconfig
docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 0.0.0.0
        ether 02:42:85:9b:ba:1b  txqueuelen 0  (Ethernet)
        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

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.2.75  netmask 255.255.255.0  broadcast 192.168.2.255
        inet6 fe80::5054:ff:fecb:4778  prefixlen 64  scopeid 0x20
        ether 52:54:00:cb:47:78  txqueuelen 1000  (Ethernet)
        RX packets 218123  bytes 82148195 (78.3 MiB)
        RX errors 0  dropped 12  overruns 0  frame 0
        TX packets 33555  bytes 3256004 (3.1 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
        inet6 ::1  prefixlen 128  scopeid 0x10
        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