Forum Domain switch
 

So I want to move my forum site from one domain to another; it's all straightforward, both on the same server and both domain setups identical. Obviously just opening the FTP client and shift selecting all the files and dragging them to the public html directory isn't enough to make it work, so I'm just wondering if it's possible to find a good guide for this type of procedure? Surely you don't have to reinstall the whole thing just to do a domain switch?