Two domains, one forum

[yaku]

I have a forum that has an adult section. It gets a lot of traffic so I don't want to lose it. But I want to start a forum with the same content, but minus the adult stuff.

I know I'll need to buy a separate licensing agreement; that's no problem. What other steps would I have to take to have a mostly duplicate site on the same server?

[Dismounted]

Are you looking to do a once only import, or actually have the data be real-time mirrored?

[yaku]

Real time mirrored...I'd like everything that gets posted on one forum to show up on the other, minus the adult stuff.

[Dismounted]

There are actually numerous thread discussing this - you should be able to find these.