How can I configure Mac OS X such that it can only allow an internet connection (both downloads and uploads) through a given VPN connection?
If the VPN connection disconnects, the internet should stop working.
I need to do this due to security reasons. Sometimes I use ISPs that I have no reason to trust. Especially on wifi hotspots.
How do I do this? I'm sure there is nothing I can do through the Mac OS X GUI, but is there any hack I can do via the Terminal?