In v7.3, we have upgraded the Linux distribution. The services are now maintained by the systemd paradigm. This applies to the 8.x releases as well. Some of the process names were 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