Install FreeNX via putty+xming

    Installing the FreeNX server on Ubuntu 9.10.
    I use putty.exe + xming to login to ubuntu via ssh

$sudo add-apt-repository ppa:freenx-team

$sudo apt-get update

$sudo aptitude install freenx

   Now use nxsetup to install necessary files and create the special user "nx"

   $sudo /usr/lib/nx/nxsetup --install

   FreeNX Client installation in ubuntu 9.10 

   If you want to install opensource client for freenx use QTNX,QTNX NX client for QT instal
   qtnx using as follows.

   $sudo apt-get install qtnx

   Install Freenx client in windows

   You can download freenx windows client from here and install.

For start

$sudo /etc/init.d/freenx-server start

For stop

$sudo /etc/init.d/freenx-server stop

Errors..

If you get “Cannot initialize the display service” problems follow this instructions

http://alandoyle.com/tutorials/setup-freenx-under-ubuntu/

 If you get "The nx service is not available or the nx access was disabled" error

To fix this, connect to your SSH and type:

$cat /var/lib/nxserver/home/.ssh/client.id_dsa.key

Copy the text you get and in your NX client, on your login dialog box go to:

Configure… > General Tab > Key