Centos Linux启用和禁用网卡

禁用网卡

[root@sre01 ~]# ifconfig ens36 down

[root@sre01 ~]# ip a show ens36
3: ens36: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff

启用网卡

[root@sre01 ~]# ifconfig ens36 up
[root@sre01 ~]# ip a show ens36
3: ens36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:c0:78:db brd ff:ff:ff:ff:ff:ff
    inet 172.16.156.128/24 brd 172.16.156.255 scope global noprefixroute dynamic ens36
       valid_lft 1799sec preferred_lft 1799sec
    inet6 fe80::e778:fe94:3756:fa71/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
[root@sre01 ~]#