查看ip地址
test@Research-PC:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:fe:5a:7d brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic noprefixroute enp0s3
valid_lft 81595sec preferred_lft 81595sec
inet6 fe80::6cc0:9171:d626:b50c/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:19:5e:94 brd ff:ff:ff:ff:ff:ff
inet 192.168.56.28/24 brd 192.168.56.255 scope global noprefixroute enp0s8
valid_lft forever preferred_lft forever
inet6 fe80::29aa:5e0:66ac:e362/64 scope link noprefixroute
valid_lft forever preferred_lft forever
查看网络连接
test@Research-PC:~$ nmcli c show
NAME UUID TYPE DEVICE
有线连接 1 5b88a56b-517d-383b-8450-7781d1656592 ethernet enp0s3
有线连接 2 1fe43dc1-8fd0-34e6-9c71-7eb602f52e9d ethernet enp0s8
修改ip地址(ipv4改成手动,网卡自动启动)
test@Research-PC:~$ sudo nmcli c mod 1fe43dc1-8fd0-34e6-9c71-7eb602f52e9d ipv4.method manual ipv4.addr "192.168.56.28/24" connection.autoconnect yes
test@Research-PC:~$ sudo nmcli c down 1fe43dc1-8fd0-34e6-9c71-7eb602f52e9d
成功停用连接 "有线连接 2"(D-Bus 活动路径:/org/freedesktop/NetworkManager/ActiveConnection/1)
test@Research-PC:~$ sudo nmcli c up 1fe43dc1-8fd0-34e6-9c71-7eb602f52e9d
连接已成功激活(D-Bus 活动路径:/org/freedesktop/NetworkManager/ActiveConnection/3)
修改ip地址后停用并激活一次,网卡可以用NAME或UUID标识,例子中使用了UUID,并不是很方便,但是NAME是中文的,在终端中不好输入。