x11 forwarding problems

From: Andre Charbonneau (andre.charbonneau_at_nrc-cnrc.gc.ca)
Date: 05/13/05

  • Next message: David Busby: "Security Practices" 
    Date: Fri, 13 May 2005 11:53:52 -0400
To: secureshell@securityfocus.com

    Hi,
    If I connect to a openssh server (SSH-1.99-OpenSSH_3.8p1, running on
    SuSE Linux 9.1 (i586)) using a openssh client (OpenSSH_3.9p1, OpenSSL
    0.9.7d 17 Mar 2004, running on SuSE Linux 9.2 (i586)), then X11
    forwarding works fine.

    But, if I use j2ssh as a ssh client to connect to the same sshd, then I
    get the following error in the sshd debug output:

    debug1: channel 3: new [X11 connection from 127.0.0.1 port 36470]
    channel 3: open failed: connect failed: Connection refused

    I've been trying to find what might be the problem for a few days now
    but with no success.
    I understand that this is not the place to ask questions about j2ssh.
    But what I would like to know is the following: In general, is there a
    well known condition, either at the client or server side, which would
    cause such a 'connection refused'?

    Thanks,
    Andre 

    -- 
Andre Charbonneau
100 Sussex Drive, Rm 2025
Research Computing Support, IMSB
National Research Council Canada
Ottawa, ON, Canada K1A 0R6
613-993-3129  Fax: 613-993-3127
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