Hi Brandon, welcome to LQ, and no worries :}
There is ... the actual firewall is called iptables,
it's a combination of kernel routines and a
user-land application by the same name.
And there's numerous graphical frontends if
you're afraid of the command-line. I don't know
what's shipped with RH, though.
Knetfilter, GTK-IPTables, firestarter, GuardDog,
to name just a few ... you can find those either
on your CD's :} or at http://freshmeat.net
doh, wish I could type faster... damn you, tricky! :D