Re: X11 and XDM (Newbie)
Re: X11 and XDM (Newbie)
On Tue, May 20, 2003 at 05:00:09PM -0500, Carsten Stuckenholz wrote:
> Hi,
>
> We would like to set up X11 so that it automatically connects to an X11
> client using XDM, we always connect to the same client and do not use
> X11 for anything else. In the past, we have used Tenon's X-Ten (I have
> also tried their X-Tools) and we had no problem configuring it to
> connect via remote XDM, we just had to enter the server address and
> everything else was taken care of.
Why do you need to use xdm? Remote sessions of that sort have a number
of potential issues:
1) The X traffic is unencrypted, so there is a potential security
issue. For example - you type a password into an xterm, and it goes
across the network in clear text.
2) Your window manager and all of your X clients are running remotely,
which uses network bandwidth.
If you use SSH, you solve both of these problems instantly; your X
connections are tunnelled through SSH and so are encrypted and secure,
and your window manager is running locally, which gets you nice fast
interactive performance.
> How can I configure X11 to do the same thing? I have tried SSH to no
> avail and also searched the web, but I can't seem to make sense of the
> information that's out there - I am pretty new to UNIX and X11. Can
> anybody advise me how to set up our X11 for remote XDM?
You can't. Apple's X server does not support XDMCP. You really should
investigate getting the X11 method working. I switched to it about five
years ago, and have never regretted it.
I believe XDarwin does support XDMCP sessions, but I really don't
recommend you manage your sessions that way. XDMCP is a relic from the
Internet's older and more trustworthy days.
Tim.
--
Dr Tim Cutts
Informatics Systems Group
Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK
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