For what you seem to need, you'll be ok installing RedHat's "caching-nameserver.rpm" package, which is useful for not to get very deep into DNS. (only for queries from your internal network, not for maintaining a DNS domain)
You can also check http://www.acmebw.com/askmrdns/
, for any doubt if going for a complete bind implementation.
Once it is installed:
Beware that Bind's program image is called "named", not "bind".
So you should check it is running with:
ps -fe|grep named