Linux最小安装修改静态IP地址，修改后不会变

确认网络连接状况，显示未连接

[root@localhost ~]# nmcli device status
DEVICE  TYPE      STATE   	CONNECTION
enp0s3  loopback  unmanaged  

进入nmtui添加ethernet 

[root@localhost ~]# nmtui

进入文件/etc/sysconfig/network-scripts/ifcfg-Enp0s3修改ip网关等

[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-Enp0s3
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.4.55
PREFIX=24
GATEWAY=192.168.4.1
DNS1=192.168.4.1

重启网卡

[root@localhost ~]# ifdown ensp03
[root@localhost ~]# ifup ensp03

查看已连接

[root@localhost ~]# nmcli device status
DEVICE  TYPE      STATE   CONNECTION
enp0s3  ethernet  已连接  Enp0n3

使用ip -c a查看，修改成功

[root@localhost ~]# ip -c a
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:7f:74:a5 brd ff:ff:ff:ff:ff:ff
    inet 192.168.4.55/24 brd 192.168.4.255 scope global noprefixroute enp0s3
       valid_lft forever preferred_lft forever
    inet6 fe80::56c8:2b9a:4524:a5d6/64 scope link noprefixroute
       valid_lft forever preferred_lft forever