I installed OpenVPN on my web server.
I can not make it work.
It is possible that the issue is that OpenVPN conflicts with NGINX?
I tried UPD/1194 and TCP/1194 ports for OpenVPN.
Is it possible that OpenVPN also expects 443 port to be available?
Here are various details and logs about the installation:
https://forums.openvpn.net/viewtopic.php?t=38393.