Graphical User Interface
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X Window System
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The X Window system is a principal way to get GUI access to the clusters.

Read more about configuring [**X Window System**](x-window-system/).

VNC
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The **Virtual Network Computing** (**VNC**) is a graphical [desktop sharing](http://en.wikipedia.org/wiki/Desktop_sharing "Desktop sharing")![external](../../../img/external.png) system that uses the  [Remote Frame Buffer protocol (RFB)](http://en.wikipedia.org/wiki/RFB_protocol "RFB protocol")![external](../../../img/external.png) to remotely control another [computer](http://en.wikipedia.org/wiki/Computer "Computer")![external](../../../img/external.png).

Read more about configuring **[VNC](vnc/)**.