Problem:
In your OpenVPN server logs you see this error message
failed to find GID for group openvpn
followed by a server restart (Exiting due to fatal error).
Solution:
Run this command to add the OpenVPN group:
sudo groupadd openvpn
In most cases, you’ll see this in your server log after doing that:
failed to find UID for user openvpn Exiting due to fatal error
In that case, refer to our previous post on How to fix OpenVPN “failed to find UID for user openvpn”