SUMMARY: Question about XDM access

From: <Maurice.Steyvers_at_ICA.RULIMBURG.NL>
Date: Fri, 27 Jan 1995 10:43:10 +0100 (MET)

Hi,

Several people pointed me in the right direction.
Below is a the original question plus a summary i've constructed from
some of the mails:

Question:
------------------------------------------------------------------------------
>
> I've been looking at the public domain XWindows server Xappeal for MSDOS to
> be used with our OSF1 3.0 Alpha 2100 servers.
>
> Installation and configuration of Xappeal work just fine but when I start up
> xappeal and connect to our xdm-server i get the DIGITAL logo and below I
get
> the message:
>
> " Cannot get database information on this terminal "
>
> and i'm asked to acknowledge.
> and i'm in a loop.
>
> I've been looking for quite some time but i cannot think of any
> database where the terminal information should be in ?
>
> If this sounds familiar and you know a solution let me know.
>
> Maurice Steyvers
> University of Limburg
> Maastricht , the Netherlands
>
>


Summary:
-------------------------------------------------------
The message comes from libsecurity.so, and means that
the X connection needs to be registered in /etc/auth/system/ttys
and in /etc/auth/system/devassign. Look at how "local:0" is
done. Also note that the X connection information in those files
must be exactly as xdm passes the string to the authentication
code. I recommend doing a "touch /var/adm/sialog", trying the
Xappeal connection again, and then looking at the display name in
the sialog file. (Then delete sialog again.) I *think* (but
don't remember for sure) that xdm presents same-domain hosts as
bare names, but all others as fully-qualified domain names. For
example, "NedsPC.Nashua.NH.US:0" would be presented to my system
(Orb.Nashua.NH.US) as "NedsPC:0", but "Alex.Hollis.NH.US:0" would
be presented as just given.

Add entries to two files in /etc/auth/system, ttys and
devassign, for every terminal that can connect to the system.
The entries in the ttys file for X-terminals look like:

  zinc.oucs.ox.ac.uk\:0:t_devname=zinc.oucs.ox.ac.uk\:0:\
          :t_xdisplay:chkent:

and the entries in devassign look like:

  zinc.oucs.ox.ac.uk\:0:v_devs=zinc.oucs.ox.ac.uk\:0:v_type=xdisplay:chkent:

Unfortunately there is no way (in v3.0) to wildcard devices so that
any machine in your domain can connect to XDM.
---------------------------------------------------------------------



Thanks to:
           Scotty Logan <scotty.logan_at_computing-services.oxford.ac.uk>
           Stuart 'Zen' Bishop <zen_at_bf.rmit.edu.au>
           Spider Boardman <spider_at_Orb.Nashua.NH.US>
           pfs_at_mimuw.edu.pl (Piotr Filip Sawicki)
Received on Fri Jan 27 1995 - 04:48:00 NZDT

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