Netplan

Edit the network settings in

/etc/netplan/some file name
The /etc/netplan/ directory can contain multiple .yaml config files.

Use

netplan try 
netplan apply

to test the settings or keep settings

Example of netplan config file

network:
    version: 2
    renderer: networkd
    ethernets:
        enp3s0:
            addresses:
                - 10.10.10.2/24
            nameservers:
                search: [mydomain, otherdomain]
                addresses: [10.10.10.1, 1.1.1.1]
            routes:
                - to: default
                  via: 10.10.10.1

Avoiding Common YAML Errors#

All elements must be indented consistently using spaces (not tabs) Netplan uses typed data for values. Be sure to wrap strings in quotes You can also use numbers, booleans, nested objects, lists and other data types. Refer to the Netplan data types documentation for more details Use

netplan --debug apply

to enable verbose logging for troubleshooting.