Configuring FreeNX Server on linux manchine & accessing it form Windows.

Download rpms. 1 links is here
http://www.nomachine.com/download-package.php?Prod_Id=718

Install all three Server, client, node
rpm -ivh rpmName

use -- yum install freenx nx
yum install openssh-server

User nx commands
cp /usr/libexec/nx/nxloadconfig /usr/NX/bin
/usr/libexec/nx/nxsetup --install --setup-nomachine-key
/usr/libexec/nx/nxserver --status
--restart [--start]

/usr/libexec/nx/nxserver --useradd root
/usr/libexec/nx/nxserver --passwd root

/usr/NX/bin/nxserver --keygen

On windows install NX client from EXE
[From Linux]
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

Configure other things and login.
SSH must be ruuing on linux. Turn off the firewall.