centos8重启网卡命令nmcli

centos8没法用systemctl restart network和service restart network

方法：nmcli c reload +网卡名

查询网卡名

[root@localhost ~]# ifconfig
enp0s3: flags=4163  mtu 1500
        inet 192.168.0.168  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::adb4:388c:4129:ad4c  prefixlen 64  scopeid 0x20
        ether 08:00:27:9e:c4:42  txqueuelen 1000  (Ethernet)
        RX packets 33853  bytes 2474817 (2.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 120  bytes 22832 (22.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 12  bytes 1020 (1020.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 12  bytes 1020 (1020.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

可以看到网卡名为enp0s3
重启命令可以这样使用
例：nmcli c reload enp0s3

如果不行，可尝试以下命令

重载所有ifcfg或route到connection（不会立即生效）

nmcli c reload  ifcfg-xxx

重载指定ifcfg或route到connection（不会立即生效）

nmcli c load /etc/sysconfig/network-scripts/ifcfg-enp0s3
nmcli c load /etc/sysconfig/network-scripts/route-enp0s3

立即生效connection，有3种方法

nmcli c up enp0s3
nmcli d reapply enp0s3
nmcli d connect enp0s3