Re: Xnest & nesting servers

[Bob Marcan <bob@xxxxxxxxxxxxxxxxxxxxxxxx>]

jayjwa wrote:
> Hello All,
>
> I'm having trouble getting the Xnest server to allow clients access when
> running as a second server on the same workstation. (I probably won't do
> this in practice, but I'd like to know why it's not allowing access.) One
> server starts OK. Then I'll start the second server, Xnest, on another
> display like so: Xnest -display :1. It starts fine, I can see it. The man
> page for Xnest states now I should be able to run xclients on the Xnest
> server, such as: xterm -display :1, and then lauch whatever from there.
> This is the part were trouble sets in. The xterm is refused, can't
> connect. In the term that I started the Xnest server, I see error
> messages:
> AUDIT: <date> Xnest: client 1 rejected from local host
>
> and this repeats each time I try, same results. I changed the display
> numbers around but no luck. It seems something is default set overly
> protective, but I'm not sure how to stop it, or what it is. It's not
> xhost +<host>, because I tried that in desperation. It won't take a
> -display tag, either. So now I have a lovely Xnest server with a paranoid
> complex that I can't access from the machine that started it (I could
> simply kill it off, so I don't see the security in this.) Thanks in
> advance for anyone that can help. I'll keep checking the man pages 'till
> then :(
>
> -Jay
>
>
>
>
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I'm using this script:
-----
#! /bin/sh

HOST="$1"
if [ "$HOST" = "" ]; then HOST="localhost"; fi
SCREEN="$2"
#if [ "$SCREEN" = "" ]; then SCREEN="8"; fi
GEOMETRY="1258x914"

if [ "`echo $HOST | grep tamagoci`" ]; then GEOMETRY="1024x768"; fi
if [ "`uname -n | grep tamagoci`" ]; then GEOMETRY="960x665"; fi

if [ "$SCREEN" = "" ]; then
  TMP=`mktemp /var/tmp/xnest.XXXXXX || exit 1`
  OLDSCR=7
  ps -A -o cmd | grep ^Xnest | sort > $TMP
  exec 3< $TMP
  while read <&3 ln; do
    SCREEN=`echo "$ln" | awk -F " " '{print $2}'`
    SCREEN=`echo "$SCREEN" | awk -F ":" '{print $2}'`
    SCREEN=`echo "$SCREEN" | awk -F "." '{print $1}'`
    if [ $OLDSCR -le $SCREEN ]; then OLDSCR=$SCREEN; fi
  done
  exec 3<&-
  SCREEN=`expr $OLDSCR + 1`
  rm $TMP
fi

Xnest :${SCREEN}.0 -wm -full -query $HOST -once -geometry $GEOMETRY 
-name "${HOST}.${SCREEN}" &
-----

xterm -display localhost:8
works properly

--
 Bob Marcan                     mailto:bob.marcan@xxxxxxxxxxxxxx
 Aster^H^H...HermesPlus^H^H^H...S&T
 Slandrova ul. 2                       tel:    +386 (1) 5895-200
 1000 Ljubljana, Slovenia              http://www.hermes-plus.si

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