Install Ubuntu Desktop With NoMachine FreeNX on Ubuntu Server 12.04

instructions.txt

This is a method to using your Ubuntu 12.04 server without the Unity desktop on a very fast remote desktop program. This is by far the best method to managing your Ubuntu server if you like GUI.

apt-get install --no-install-recommends ubuntu-desktop
apt-get --yes purge unity unity-2d unity-2d-places unity-2d-panel unity-2d-spread 
apt-get --yes purge unity-asset-pool unity-services unity-lens-* unity-scope-*
apt-get --yes purge liboverlay-scrollbar*
apt-get --yes purge appmenu-gtk appmenu-gtk3 appmenu-qt
apt-get --yes purge firefox-globalmenu thunderbird-globalmenu
apt-get --yes purge unity-2d-common unity-common
apt-get --yes purge libunity-misc4 libunity-core-5*
apt-get install gnome-session-fallback
apt-get install python-software-properties
add-apt-repository ppa:freenx-team
apt-get update
apt-get install freenx
echo -e "\n#Use unity 2d for client sessions\nCOMMAND_START_GNOME='gnome-session --session=ubuntu-2d'"|sudo tee -a /etc/nxserver/node.conf
/etc/init.d/freenx-server stop
/etc/init.d/freenx-server start

Download Windows client:
http://64.34.173.142/download/3.5.0/Windows/nxclient-3.5.0-9.exe