How to add a Clean Debian 6.0 Computer to a pre-existing video wall

Step 0: Log in as root
Step 1: Install X and Fluxbox
apt-get install xserver-xorg xinit fluxbox
Step 2: Add .xinitrc

Add 

/root/.xinitrc

and give it one line: 

xterm
Step 3: Edit /etc/X11/xinit/xserverrc

it will read: 

#!/bin/sh

exec /usr/bin/X -nolisten tcp "$@"

remove the “-nolisten tcp” so that the file reads: 

#!/bin/sh

exec /usr/bin/X "$@"
Step 4:

Start X 

Xorg
Step 5: Configure X access control

On another virtual terminal: 

# export DISPLAY=:0
# xhost +