Today there was an OpenVPN workshop at the Hackerspace Brussels. The workshop was given by Christophe Vandeplas. The first part of the workshop was the theoretical part. The nice thing about the setup was that you did not need any knowledge about networking or VPN.
Christophe took us all through the basics, starting with "how 2 systems talk over a switch" over "how to machines talk over a router" and then going to firewalls, NAT and of course VPN and everything that goes with it.
The second part of the workshop was actually setting up an OpenVPN system. It was really a step by step walktrough.
It was was a great afternoon where I learned a lot. The presentation can be found here. Christophe has also a how-to about the Belgian eID and OpenVPN.