Named
It looks like named, but it's said as "name-dee", it's the daemon that runs the name server. The config file you want is in /etc, if memory serves, usually /etc/named.conf. There shoudl also be a man page on that one. The database for the zone is usually in the named.hostname file in /etc. This will contaitn all of the entries for your zone that you are setting up. There are a number of quirks to BIND and named, not the least of which is incrementing the serial number each time you edit the database file to get named to re-read the SOA.
In all honesty, setting up DNS is a real task, and I'd highly recommend the O'Rielly book "DNS and BIND", available at B&N, or anywhere that has ORA books (also ora.com). It's a good read, relatively short, and a relaly good reference to DNS and BIND.
Good luck, get the book, save yourself some seriously frustrating time, and have fun with it,
loadc