ifconfig 查看网卡信息
[root@linux-node-192 sss]# ifconfig eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.91 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::250:56ff:fe2c:72d4 prefixlen 64 scopeid 0x20<link> ether 00:50:56:2c:72:d4 txqueuelen 1000 (Ethernet) RX packets 10722 bytes 6648138 (6.3 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 5907 bytes 664017 (648.4 KiB) 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<host> loop txqueuelen 0 (Local Loopback) RX packets 3906 bytes 271808 (265.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3906 bytes 271808 (265.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ifup eth0 //启动指定网卡 ifdown eth0 //关闭指定网卡