openvpn
"Your private path to access network resources and services securely" - https://openvpn.net/
Tips
Check status of logged in clients
kill -USR2 $OPENVPN_PID
is the magic that causes the server to output its current client status. This may be logged to a different logfile, so look around if you don't see status.
killall -USR2 /usr/sbin/openvpn ; tail /var/log/syslog ;
There also may be a file called /etc/openvpn/openvpn-status.log
with current status. Don't ask me why a status log file is located in /etc/
... 🙄