I have an OpenVPN AC server on AWS EC2. I use this VPN to have access to my AWS VPC (Virtual Private Cloud) where I have a server that I need to be only accessed through this channel.
Everything works great, my client connects to the server and it gets all communications through the VPN.
The problem I have is that I don't want any of my EC2 instances to have access to the internet. They must NOT be able to access any webpage or web service other than the available services inside my VPC.