I am using swissvpn and they give you instructions to only allow outbound connections with the following protocols:
* DNS (TCP/UDP port 53)
* PPTP (TCP port 1723), for PPTP VPN
* GRE (IP protocol 47), for PPTP VPN
* HTTPS (TCP port 443), for OpenVPN
I have been using Comodo for quite a while and all my application rules and so on are set up, but how would I go about to do this kind of global whitelisting.
My first thought was that I might be able to do it in the global settings, but I didn’t see how.
Any pointers in the right directions are much appreciated ;D