Couple of things:
I've tried to run Pitboss on my Linux box using Cedega but it didn't.
The Digitalus details don't mention Linux or I missed something. It pretty much looks like a straightforward host implementation.
Imho a Pitboss can run on any Windoze box that can run BtS. That potentially includes the CDZ server but 1) Can it run BtS? and 2) What would that mean for forum performance and the other stuff it is running?
As far as I can see Pitboss can't be run from straland.com.