[17900] in Athena Bugs

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Re: sun4 8.3.29: X

daemon@ATHENA.MIT.EDU (Jacob Morzinski)
Tue Jun 13 19:02:17 2000

To: Brad Thompson <yak@MIT.EDU>
Cc: bugs@MIT.EDU, jmercado@MIT.EDU
Mime-Version: 1.0 (generated by tm-edit 7.106)
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From: Jacob Morzinski <jmorzins@MIT.EDU>
Date: 13 Jun 2000 19:02:09 -0400
In-Reply-To: Brad Thompson's message of "Tue, 13 Jun 2000 18:13:57 -0400"
Message-ID: <w6m66rd9ocu.fsf@horobi.mit.edu>

<daemon@ATHENA.MIT.EDU> (Brad Thompson) writes:
> If you log in remotely to a NetBSD-Athena 8.2.3 or Solaris-Athena
> 8.3.29 machine, you can launch X clients on the local display (:0.0).
> This should not be allowed.

This is a longstanding bug in our X setup that I'd love to have
fixed, because a different aspect of it forces me to kludge our
tcl/tk install in order for exmh to work.  (It's not merely the
platforms listed, by the way -- to the best of my knowledge, it's
all Athena machines after 8.1 or so.)

The problem is that X won't allow us to reduce the access list to
fewer entries than these three:

    horobi% xhost
    access control enabled, only authorized clients can connect
    INET:horobi.mit.edu
    INET:localhost
    LOCAL:

In my experience our Irix machines have always been like this.
Our Solaris machines became like this when they started using X11R6.

The INET: entries allow the behavior which you describe.  Being
able to reduce the list to just the LOCAL: entry should solve the
problem.

 -Jacob

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