GUIとCUIの2通り設定可能。
GUI: nmtuiで設定
[root@sun ~]# nmtui

CUI : nmcliで設定
[root@sun ~]# nmcli
_eth0: connected to eth0
“Red Hat Virtio”
ethernet (virtio_net), 52:54:00:C3:02:8A, hw, mtu 1986
ip4 default
inet4 140.227.63.152/24
route4 140.227.63.0/24
route4 0.0.0.0/0
lo: unmanaged
“lo”
loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
DNS configuration:
servers: 210.150.255.28 202.229.78.37
interface: _eth0
Use “nmcli device show” to get complete information about known devices and
“nmcli connection show” to get an overview on active connection profiles.
Consult nmcli(1) and nmcli-examples(7) manual pages for complete usage details.