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By default Ubuntu 22.04 LTS Jammy Jellyfish enabled with netplan network configuration using YAML format.
If you are comfortable with using nmcli we need to install Network Manager packages using apt and configure network interfaces with nmcli or nmtui commands.
We may encounter with below error while trying to use Network Manager on Ubuntu servers, it can be rectified by adding a exception.
Error: Connection activation failed: No Suitable device found for this connection (device lo not available because device is strictly unmanaged).
Install required packages
# apt install network-manager -y
Adding Exception for Ethernet Type
Make sure to add the exception by editing global config file.
# vim /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf
Add the exception after a comma (,) as follows.
In my case ethernet, similarly add the required type.
Restart the Network Manager to make it effective.
# systemctl restart NetworkManager
Verify Network Status
Now the status of interface will be in active.
# nmcli device
# nmcli connection
Configure the interface with an IP, gateway and DNS.
# nmcli connection add type ethernet ifname ens160 con-name prod ipv4.addresses 192.168.10.20/24 ipv4.gateway 192.168.10.1 ipv4.dns 192.168.10.100 ipv4.dns-search linuxsysadmins.lan ipv4.method manual ipv6.method ignore autoconnect yes