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ssh X11 forwarding
- To: Linux-IL mailing list <linux-il(at-nospam)linux.org.il>
- Subject: ssh X11 forwarding
- From: Tzafrir Cohen <tzafrir(at-nospam)technion.ac.il>
- Date: Tue, 28 Aug 2001 18:01:10 +0300 (IDT)
- Delivered-To: linux.org.il-linux-il@linux.org.il
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
Hi
Another question
I'm trying to connect from one linux box (with openssh 2.5.2p2 and XFree
3.3.6) to another one (with openssh openssh-2.9p1 and XFree 4). I can't
get X11 forwarding to work over that connection:I always get the error
message:
Error: Can't open display: server:10.0
$ echo $DISPLAY
server:10.0
$ echo $XAUTHORITY
/tmp/ssh-ABQ19212/cookies
$ netstat -l -n --tcp |grep ':60'
tcp 0 0 0.0.0.0:6010 0.0.0.0:* LISTEN
So it seems X forwarding is set.
When I try to connect with ssh from the client to itself (either to
localhost or to the host name) X forwarding works fine. I currently don't
have other clients and servers to check it with.
>From searching the web it seems that this error indicates an X
authorization error: the client manages to establish a connection to the
server, but is rejected. But I see no error messages from the server or
from ssh about a rejected client.
If I use the standard xauth authentication (xauth add) then I can set
DISPLAY to client:0 and connection works fine.
One other thing I tried: From a normal xterm in client, I ran:
XAUTHORITY=/tmp/auth xauth add server:10 MIT-MAGIC-COOKIE-1 <cookey>
XAUTHORITY=/tmp/auth DISPLAY=server:10 xcalc
and xcalc pops up just fine.
I've tried running the same sequence on the server, and got the same error
as before.
[The choice of names 'client' and 'server' was a bit misleading, as the X
server runs on 'client' - the usual X server client-server confusion ;-)]
Any ideas? Have I got the error message wrong?
--
Tzafrir Cohen
mailto:tzafrir@technion.ac.il
http://www.technion.ac.il/~tzafrir
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