I don't know if anyone here has played with Hamchi: www.hamachi.cc
Essentially its a closed source (but free as in beer) VPN system which uses a peer-to-peer infrastructure. Effectively it allows anyone to join a VPN (with the right passwords, etc) without any of the normal "fun" associated with VPN configuration.
It has two major downfalls:
1. It's Windows only at present (a Linux client is coming, though) 2. As I said above, its closed source.
The second point is the one that concerns me most. Security software which is not open source basically just bothers me. Of-course point 1 is also a side effect of point 2 (it's not the developer's priority, so it's not been done, where with the OSS model I'm pretty sure it would have been by now).
Since I'm new to Hamachi, its quite possible that there are similar OSS projects. Does anyone here know of anything like it?
[I will say that on Windows platforms Hamachi is very effective at what it does.]
Mark Rogers, More Solutions Ltd