[Tfug] remote X for the first time

[Ammon Lauritzen]

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Zach Nation wrote:
> Try not setting the DISPLAY variable. ssh should do that for you.
> 
> Also, make sure ssh X forwarding is enabled on the remote machine in
> sshd... edit sshd.conf for that.

Tunneling X through an SSH connection will work through firewalls,
across the internet, etc... whereas making a regular remote X connection
will not.

The sshd sets up a local fake X server on the server (note that your
DISPLAY is automagically set to something like localhost:10.0 or 11 if
somebody else is already tunneling something, etc).

The only real problem with tunneling X is that there is some measurable
latency increase as packets have to pass through a few more steps before
arriving on your end.

For extra credit, you can play around with actual remote X logins (ie,
making a pII into a usable machine by giving it a good ethernet card,
decent video, and then just running -everything- off of your real box).

The best general document on the whole subject is the LDP XDMCP HOWTO.
	http://www.tldp.org/HOWTO/XDMCP-HOWTO/

Ammon
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