Ill take a stab at this ;D
Okay Red hat 8 ... I remember those days ;D About a year ago I was going goo-goo-gaa-gaa over it :'( Such fond memories...
Anyhoo. To get them on the same network first do this (Since I am unsure whther you have X installed, much less any of the tui tools -- we go the long way for insurance that it will work):
On your redhat box, go in /etc/sysconfig/networking/profiles/default
Now take a look at ifcfg-eth0
That shows we have an ethernet device setup.
[schotty@andrew devices]$ cat ifcfg-eth0
Now that we have hardware there, lets check the driver status :
Do a 'dmseg | less'
There is my selection stating that my nic has had a succesful driver load.
Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
PCI: Found IRQ 11 for device 00:0b.0
tulip0: MII transceiver #1 config 3100 status 7829 advertising 01e1.
divert: allocating divert_blk for eth0
eth0: Lite-On 82c168 PNIC rev 32 at 0xf0abc000, 00:A0:CC:28:A0:F9, IRQ 11.
ip_tables: (C) 2000-2002 Netfilter core team
eth0: Setting full-duplex based on MII#1 link partner capability of 01e1.
Okay, now lets goto DNS (as you may have seen, my card has DHCP, and is configured. You would see a line in your ifcfg-eth0 that would have the IP address/subnetmask. It should be fine.) To setup dns edit the resolv.conf that is there.
As you can see mine is generated by dhcp, but you seem to get the format already.
[schotty@andrew default]$ cat resolv.conf
; generated by /sbin/dhclient-script
"/sbin/ifdown eth0 && /sbin/ifup eth0"
to bring the device up (note, this needs to be root).
For samba .. lets hit that next, when I dont need to goto work ;D