Systemctl Linux Server Status
To list all loaded services on your system (whether active; running, exited or failed, use the list-units subcommand and --type switch with a value of service.
# systemctl list-units --type=service OR # systemctl --type=service
List All Services Under Systemd
And to list all loaded but active services, both running and those that have exited, you can add the --state option with a value of active, as follows.