I never tried Red Hat, but...
try "locate samba" <enter> at the prompt
Here I. Am
> Can anyone tell me how to tell whether I have SAMBA installed already
> on my Linux system (I have installed Redhat Linux 5.2), and where to
> go to get GOOd help on setting it up?
> Regards,
> Graham Daniell
--
Here I. Am
"They that give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."
-- Benjamin Franklin