Is there a problem running multiple installations of gforum under different domains but using only one Apache/mod_perl instance. The reason I ask is that I tried the same thing with Adcycle and I kept getting pages from the other domain. It wasn't a client cache problem but may have been something to with Adcycles own caching mechanism.

Here's my planned setup:

domain_1.com
Gossamer Community
Links SQL
Gossamer Mail

domain_2.com
Gossamer forum number 1

domain_3.com
Gossamer forum number 2

domain_4.com
Gossamer forum number 3

I want all applications to authenticate under one single Gossamer Community. Initially, everything will be on one physical server and one single Apache/mod_perl instance.