During installation of 6.0 (Alpha) we set it up to use ypbind. We entered the domain name, server, and told it not to broad cast but to use a specific server. After a reboot ypbind failed to start cause it couldn't find the yp domain. /etc/yp.conf is configured correctly but does not appear to be used by the system. We edited /etc/rc.d/rc.sysinit and put in NISDOMAIN=drive. This worked as a tollerable temporary solution to the problem but should not be regarded as a "fix". We would like to see the process that the man pages refer to be implemented corectly.
Have you tried using authconfig? Or are you just editing by hand?
Closed, lack of input. Make sure that NISDOMAIN is set in /etc/sysconfig/network - that should be done by authconfig at installt time.