2 domain can use the same database of a forum

[porcupine73]

I think from a technical standpoint you would just direct both domains to the same directory on your web server. I use IIS and you can set up multiple domains and/or subdomains for it to respond to. From SEO standpoint though of course your two domains would have duplicate content so some would say 301 redirect the .org to the .com or the other way around mayb..