OnCallReady

Commands

networkctl - Query or modify the status of network links (systemd-networkd)

networkctl [OPTIONS...] COMMAND [LINK...]

Options you will use

list
every link: type, operational state, setup state (default)
status [LINK]
addresses, gateway, DNS and which .network file configured it

Examples

$ networkctl

is enp0s1 routable and configured?

$ networkctl status enp0s1

where its address came from

Gotchas

Try networkctl in a real terminal Free, in your browser - a real Ubuntu terminal to try it in, with missions that check your work.