Set up the VNC Server in Fedora Core Part:1

Prerequisites

A user account should exist on the remote machine.
The RPM packages vnc-server and vnc should be installed on the remote machine and your workstation respectively.
Setting up the server

I assume that we have setup a remote user account, named "leopard" and we want to start an X session through VNC for this user.

In Fedora Core or Red Hat based distros in general, all we have to do is define the VNC server instances in /etc/sysconfig/vncservers. These will be started by the vncserver initscript. This has to be done as root. Edit this file so that it contains the following:

VNCSERVERS="3:leopard" 

VNCSERVERARGS[3]="-geometry 1024x768 -depth 16"
With these we define that a vnc server instance should be started as user leopard on display 3 and we also set some options for this server such as resolution and color depth. Each VNC server instancelistens on port 5900 plus the display number on which the server runs. In our case, leopard’s vnc server would listen on port 5903.

For multiple vnc instances /etc/sysconfig/vncservers would look like this:

VNCSERVERS="1:tiger 2:albatros 3:leopard" 

VNCSERVERARGS[1]="-geometry 1024x768 -depth 16" 

VNCSERVERARGS[2]="-geometry 800x600 -depth 8" 

VNCSERVERARGS[3]="-geometry 1024x768 -depth 16"
These would listen on ports 5901, 5902, 5903 respectively.