Here's one I haven't had any luck googling, probably because I don't know the right term to search for. I've got three different DNS records resolving to my DSL connection (static IP). One that my ISP automatically set up, one that I bought a while back that I'm using for a site, and one for my girlfriend's small (5 MB/month transfer) site that I'm hosting for her.
When I do a reverse lookup by entering my IP address, I always seem to get back the domain name that my ISP set up. How is it decided that this is the one that will be returned? Is there any way to change it? I'm mostly just curious because I can't figure out how this works. I'm pretty n00b at DNS stuff.
