From wikieduonline
Revision as of 16:25, 11 November 2021 by Welcome (talk | contribs) (→‎Basic Commands)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

nmcli is NetworkManager's built-in command-line interface added in 2010[1], it is used at least in RHEL. nmcli allows easy display of NetworkManager's current status, manage at least Ethernet and WiFi connections and devices, monitor connections.

Basic Commands[edit]

See RHEL 8.0 official documentation: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/configuring_and_managing_networking/index

  • Show network connections:
nmcli connection show
  NAME       UUID                                  TYPE      DEVICE
Profile 1  db1060e9-c164-476f-b2b5-caec62dc1b05  ethernet    ens3
bond0       aaf6eb56-73e5-4746-9037-eed42caa8a65  ethernet    --
nmcli connection show
NAME                UUID                                  TYPE      DEVICE
System eth0         5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03  ethernet  eth0
System eth1         9c92fad9-6ecb-3e6c-eb4d-8a47c6f50c04  ethernet  eth1
Wired connection 1  c40205e6-e5f8-37ba-a85b-ef94a15aad79  ethernet  --

nmcli connection show --active

nmcli device status
ens3    ethernet  connected  Profile 1
ens4    ethernet  disconnected  --
lo      loopback  unmanaged  --
nmcli device status
eth0    ethernet  connected  System eth0
eth1    ethernet  connected  System eth1
lo      loopback  unmanaged  --

nmcli device show (Includes link or carrier status). See also: ethtool

Configure commands[edit]

  • Configure DNS: nmcli con mod test-lab ipv4.dns ""
  • Activate Ethernet connection: nmcli con up test-lab ifname ens9
  • View details: nmcli -p con show test-lab
  • Configure IP in eth0:
nmcli c add type ethernet ifname eth0 con-name "My_New_Connection" ip4 gw4
Connection "My_New_Connection"  (xxxxxxx-sdafasfsdf-adfasdfaf-adsfads) suceessfully added.


  1. Configure network bonding using nmcli: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/configuring_and_managing_networking/index#configuring-network-bonding-using-nmcli_Configuring-Networking-with-nmcli

See also[edit]

  • https://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?id=c2ec07f17d69a590b45797de5c8a0f26a4c45eaa
  • Advertising: