In v7.3, we have upgraded the server running Linux distribution.
Some of the process name was changed.
To find all of those listed use "systemctl list-unit-files".
To find tonicd, for example, run "systemctl list-unit-files| grep tonicd".
To find openvpn run "systemctl list-unit-files| grep vpn".
Checking current status of tonicd process, run
# systemctl status tonicd
Restart the tonicd process, run
# systemctl restart tonicd