Client1.ovpn leaking problem?

[Derpec]

So I created a VPN, and I'm giving it out to people but how would you be able to stop them from leaking your client1.ovpn file so others could connect with OpenVPN client?

I want to assign one customer to each client1,client2,client3 files so they cannot be given out to people.


I'm selling this service so I cannot have people just give away the client1.ovpn and they can connect to my VPN.


I'm using Ubuntu