NX
1.  | 
Installing NoMachine NX on Debian or Ubuntu
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  nxclient_3.5.0-7_amd64.deb
  nxnode_3.5.0-3_amd64.deb
  nxserver_3.5.0-4_amd64.deb
2.  | 
Installing FreeNX on Ubuntu
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  cat  /etc/apt/sources.list.d/freenx-team-ppa-natty.list
  deb http://ppa.launchpad.net/freenx-team/ppa/ubuntu lucid main
  deb-src http://ppa.launchpad.net/freenx-team/ppa/ubuntu lucid main
  also, qtnx
3.  | 
Example:  Adding a Local Virtual GNOME GNOME on an Ubuntu Latop
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4.  | 
Example:  Remotely Accessing a Minimal Debian Server from an Ubuntu Latop
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4.2.  | 
Minimal Virtual Desktop
 |