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From: tim@cs.wisc.edu (Tim Theisen)
Newsgroups: comp.windows.x
Subject: Re: xdmcp menu
Message-ID: <1991Jun21.163424.26508@spool.cs.wisc.edu>
Date: 21 Jun 91 16:34:24 GMT
References: <2357@raybed2.msd.ray.com> <1991Jun21.071152.23514@maverick.ksu.ksu.edu>
Sender: news@spool.cs.wisc.edu (The News)
Organization: U of Wisconsin CS Dept
Lines: 36

In article <1991Jun21.071152.23514@maverick.ksu.ksu.edu>, brtmac@maverick.ksu.ksu.edu (Brett McCoy) writes:
|> We have 3 Sun 3/60's that I am trying set up to work
|> as X terminals.  Right now I have the X server running on the 3/60 and have
|> xdm running on our Solbourne displaying an Xlogin on the 3/60.  This works
|> mostly okay most of the time.  However, when the 3/60 gets rebooted, or
|> when something doesn't go quite right, things hang and aren't easily
|> recovered.  What I'd prefer is to have a program that ran on the 3/60
|> that would make it act more like an Xterminal, meaning that it would
|> send out an xdmcp broadcast message and then do like the above and put
|> a menu up for the user to select from.
|> 
|> I can probably write such a critter, given the time to figure out the
|> xdmcp protocol, but if something already exists I'd prefer not to have
|> to write it again.

The X server already understands XDMCP.  You just have to tell it to query
the Solbourne for XDM service.  To do this, use the -query option for Xsun
in your sbin/init file.  Do not put an entry for the Sun 3/60 in the Xservers
file on the Solbourne.  Here is the invocation of Xsun from my init file:

exec Xsun :0 -query $(< /etc/xdm.$hostname) > /dev/null 2>&1

This gets the name of the host from the file /etc/xdm.xterminalname.  Each
xterminal can query a different host if you like.  (Note: we have replaced
/bin/sh with ksh.  The Bourne shell won't understand the above line.)
If you just have a single host for xdm service, use the following:

exec Xsun :0 -query Solbourne > /dev/null 2>&1

Hope this helps,  ...Tim
-- 
          Tim Theisen           Systems Programmer
Internet: tim@cs.wisc.edu       Department of Computer Sciences
    UUCP: uwvax!tim             University of Wisconsin-Madison
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