使用nmcli修改ip地址

修改ip地址
[root@rhel8 ~]# nmcli connection modify ens160 ipv4.addresses 192.168.159.100/24 ipv4.gateway 192.168.159.2 ipv4.dns 8.8.8.8
ens160：网卡名称

如果修改失败尝试修改配置文件
vi /etc/sysconfig/network-scripts/ifcfg-ens160
重载配置
[root@rhel8 ~]# nmcli connection reload ens160

激活链接
[root@rhel8 ~]# nmcli connection up ens160

SELinux

关闭selinux
查看：getenforce
关闭：setenforce 0

或者 修改配置文件
vi /etc/selinux/config
修改SELINUX的值为disabled即可

关闭防火墙

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暂时关闭防火墙
[root@localhost ~]# systemctl stop firewalld.service

查看状态
[root@localhost ~]# systemctl status firewalld.service
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: en>
   Active: inactive (dead)
     Docs: man:firewalld(1)

设置开机关闭
[root@localhost ~]# systemctl disable firewalld.service

查看是否开机启动
[root@localhost ~]# systemctl list-unit-files | grep firewall
firewalld.service                          disabled