Re: remotely displaying X apps on another machine

[Erich Schroeder <erich@museum.state.il.us>]

This is the reason I started using linux back in '95.

The safest way to do this is to use openssh, which is available for most
flavors of *nix. On the machine which you want to share x-apps from, there
should be the following line in the file /etc/ssh2/sshd2.config

        ForwardX11                      yes

Then, after sshing into the machine you should just be able to type in the
name of the x-app you want. The only problem I run into when going to our
solaris boxen is a mismatch in the bitdepth between them and my linux
machine, causing screendumps to give odd results.

The easy insecure way is to do the following sequence:

[user@vrmuseum user]$ xhost marduk
marduk being added to access control list
[user@vrmuseum user]$ telnet marduk
Trying 192.168.1.5...
Connected to marduk
Escape character is '^]'.


SunOS 5.6

login: soluser
Password: 
Last login: Thu May 10 09:29:38 from vrmuseum
Sun Microsystems Inc.   SunOS 5.6       Generic August 1997
You have mail.

soluser@marduk% xterm -sb -display vrmuseum:0 &

This will then open an xterm on your linux box, but logged into marduk,
where you proceed type in the x-apps you want.

Note that nothing is incrypted, so you are open to sniffers catching your
passwords. The same problems of mismatched bitdepths apply.

Erich --hoping he typed everything in right

On Mon, 14 May 2001, Robert Threet wrote:

> I've been wanting to try remotely displaying X apps on
> another machine.  I haven't been able to do this.  Is
> this possible from, say, Solaris or AIX to Linux?  Or
> is the cross platform a problem?
> 
> Also, what about security issues?  I've heard there's
> a really easy, but insecure way to do this.
> 
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Erich Schroeder                    Phone: (217)785-0033
Curator, Information Technologies  FAX:   (217)785-2857
Illinois State Museum GIS Lab      email: erich (at) museum.state.il.us
http://www.museum.state.il.us/
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