It's on your CD.  /mnt/cdrom/Redhat/RPMS/samba-blah.rpm

I strongly suggest you revise your network as shown below (use
fixed width font):

gateway ------ firewall ----- hub ----- computer1
                              || \_____ computer2
                              | \______ computer3
                               \_______ computer4


Here's a down and dirty website to set up a Linux Firewall using 
Mandrake (Red Hat should be similar):
http://georgetoft.com/linux/firewall/index.html
(this is an old P-120 laptop I had laying around).

Understanding you are new to Linux, you might try a single floppy
based firewall, like Freesco (http://www.freesco.com/) or Coyote 
Linux (http://www.coyotelinux.com/).  Some people on this list have 
used Freesco, so you have some support here.  I have some Linux
Router Project images on my site that are known to work as LRP 
is notorious for being a bitch to set up.

My reasons for this are:
1.  With your current set up, you must be very proactive on keeping 
4-6 boxes properly patched.  My method reduces that to 1 box.  You 
should keep them all up to date as the firewall is not meant to be a 
stand-alone solution, but it gives the crackers up to 83% fewer boxes 
to compromise, which lowers your exposure.
2.  There have been some security problems with Samba, and running 
this on the Internet is not a good idea.  Neither is using any box
with SMB enabled on the Internet a good idea.

If you think they are not out to get you, be advised I have had
been probed or attacked over 1600 times from 89 different IP 
addresses in the last three weeks.

George


Tom Achtenberg wrote:
> 
> I have had as many as 6 Windows all on line simultaneously.  They
> "Officially" only support 4 computers but the system does not limit it.
> Right now I only have 3 plus the Linux box so that is not the problem.  Is
> Samba installed as part of the RH install?  If not, where can I get it?
> 
> Tom
> 
> Date: Sat, 28 Jul 2001 23:50:35 -0700
> From: George Toft <george@georgetoft.com>
> To: plug-discuss@lists.PLUG.phoenix.az.us
> Subject: Re: Networking
> Reply-To: plug-discuss@lists.PLUG.phoenix.az.us
> 
> My Qwest installer told me the gateway only provided 4 IP's.  If you
> already have 4 boxes on it, that may be  your problem.  Can you connect
> a 5th Windows box to the hub and get an IP?
> 
> George
> 
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