[ILUG] connection refused

[Eoin Kelly]

Hi,
There was a thread on this list a while back which explained this in decent 
detail (including the security issues)-can't be any more specific because I 
can't get the archive search on the site to work...though it it is monday so 
it could be me...

-Eoin



>From: Trevor Johnston <tjohnston at socc.ie>
>To: Irish Linux Users Group Mailing List <ilug at linux.ie>
>Subject: Re: [ILUG] connection refused
>Date: Sun, 2 Sep 2001 18:48:29 +0100 (IST)
>
>On Sun, 2 Sep 2001, Paul O'Neil wrote:
> > Small problem but how do i fix it? When I execute a program as root I 
>get
> > the following
> > Xlib: connection to ":0.0" refused by server
> > Xlib: Client is not authorized to connect to Server
> > Error: Can't open display: :0.0
> > if I execute as non-root I get permission denied. I know it has
> > something to do with suid stuff but I'm confused how all that works.
>It's actually not to do with suid stuff, more to do with who is authorised
>to run programs on your X session. Somebody else can explain the exact
>technical reasons why, but try entering the command "xhost localhost", in
>an X terminal (a shell running in X) as the user who started the X
>session. Not as root or any other users!
>
>I haven't read up much on xhost, but basically it lets you choose what
>hosts/machines are allowed to utilise your X server. Dunno how or why it
>won't let other users on the local machine connect (eg. root), but the
>above command will let any user on localhost (ie. the local machine) run a
>program on your X session.
>
>Trevor
>
>
>--
>Irish Linux Users' Group: ilug at linux.ie
>http://www.linux.ie/mailman/listinfo/ilug for (un)subscription information.
>List maintainer: listmaster at linux.ie


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