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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
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Cc: Olivier Nicole <on@cs.ait.ac.th>, freebsd-questions@freebsd.org,
	ghartl@gmail.com
Subject: Re: Running X without a videocard
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>> X windows has client/server built into the protocol: you can run an X
>> application on a machine that has no video card and display the result
>> on another machine that has video facility and an X display (called an
>> X server).
>
> Does anyone know of a tutorial or a how-to, I would like to try this out.
>
>
i already answered it before

DISPLAY variable must point to display

like IP-number:0 (or non-zero if you have more than 1 display :)

and computer with display must allow remote connections

man xhost