I've successfully set up a WireGuard VPN on my Debian 10 server. It was incredibly straight forward compared to the setup of OpenVPN, and it's working fine.
However, I can't see any logs beyond those from
journalctl -u email@example.com. I'd like to know, for example, when there are failed authentication attempts. Is there a way to monitor that? e.g. with openvpn I could use fail2ban based on auth attempts.