As I have a self hosted OpenVPN community server setup, now I could generated .ovpn certs for those who are asking but there is a chance of users getting their own certs used by others. This could lead to unauthorized access to the service which allows the vpn. So Is there any way that I can avoid it by mapping the MAC address of the user's device to the .ovpn cert?
I could see that there is a similar options for restriction using IP addresses, but I need the restriction for each individual users happen using only the MAC address.