https://www.cyberciti.biz/faq/ubuntu-18-04-lts-set-up-openvpn-server-in-5-minutes/
https://www.ovpn.com/en/guides/ubuntu-gui
To add access to local network via VPN:
nano /etc/openvpn/server/server.conf
# \/ CUSTOM START
push "route 10.0.0.0 255.255.255.0"
# /\ CUSTOM END
systemctl restart [email protected]