Redhat 8.0 installed both vncserver and vncviewer. If you
aren't running Redhat 8.0, go to
http://www.uk.research.att.com/vnc/
If you are try locate vncserver
If found, go to
/usr/share/doc/vnc-doc-3.3.3r2
for all you need to know.
If not found, install from your Redhat CDs and repeat.
RO.