[xiaoshuai.zhu@localhost ~]$ nmcli device status
[xiaoshuai.zhu@localhost ~]$ nmcli connection show
[xiaoshuai.zhu@localhost ~]$ sudo nmcli device connect ens3
[xiaoshuai.zhu@localhost ~]$ sudo nmcli device disconnect ens3
[xiaoshuai.zhu@localhost ~]$ sudo nmcli connection up ens3
[xiaoshuai.zhu@localhost ~]$ sudo nmcli connection down ens3
[xiaoshuai.zhu@localhost ~]$ nmcli con show
NAME UUID TYPE DEVICE
ens3 520a5194-2269-4282-b82a-08efc74c19b1 ethernet ens3
[xiaoshuai.zhu@localhost ~]$ sudo nmcli connection modify ens3 ipv4.method manual ipv4.addresses 192.168.0.205/24 ipv4.gateway 192.168.0.1 ipv4.dns 180.76.76.76 配置ens3的IP地址模式为静态及相应的IPV4地址
[xiaoshuai.zhu@localhost ~]$ nmcli connection modify ens3 ipv4.method atuo #设置为动态获取IP地址
[xiaoshuai.zhu@localhost ~]$ sudo nmcli connection modify ens3 ipv6.method ignore #禁用IPv6,IPv6下的配置与IPv4使用的差数差不多,只不过将IPv4换成了IPv6
[xiaoshuai.zhu@localhost ~]$ sudo nmcli connection modify ens3 connection.autoconnect yes #设置连接自动启动
[xiaoshuai.zhu@localhost ~]$ sudo nmcli connection reload #使配置生效
[xiaoshuai.zhu@localhost ~]$ sudo nmcli connection add con-name em1 ifname em1 type ethernet #创建名为em1的新连接
[xiaoshuai.zhu@localhost ~]$ sudo nmcli con del em1 #删除连接