knowledge/ubuntu_network.md

NetworkManager

• nm-applet to run old GUI and activate Enable Networking.

• nm-connection-editor to edit any weird configuration in the connections.

• You can also see what the NetworkManager is doing with these commands.

# Run one by one to see if anything is useful
nmcli device

nmcli

nmcli device show

if your network device says unmanaged, it means NetworkManager will not try to use that device to connect.

---

Netplan

# Create a config file
sudo nano /etc/netplan/ethernet.yaml

and enter this

network:
  version: 2
  renderer: networkd
  ethernets:
    eno1:
      dhcp4: true

replace eno1 with whatever your device is (mine was ens33). To see your list of devices, run ip addr.

Finally apply the new configurations

sudo netplan apply