As TimeX said, it is that easy. This would be done through the DNS Manager in domain dashboard. You'd want to edit (Should be the only one you have) A record for "@" (A wildcard that will satisfy yourdomain.com and www.yourdomain.com
) and set it to the IP address of your VDS. You don't have to mess with DNS servers or anything. It's also good to make sure the TTL is set to one or two hours. Then in Apache2 (Or Comanche or whatever you use) set it to listen to that your VDS address or just all interfaces (Not localhost). Wala!