Hi again Jim, I found out that I had to set "X11UseLocalhost" to "no" in the gsisshd's config file to successfully forward X11 connections. I think this is due to a change in /etc/hosts. In the meanwhile I tested the latest source release and the packages for SL6 and they all work (but the test machines were under my full control and I could adjust /etc/hosts so that "X11UseLocalhost" could be left to "yes"). All the best,
Matteo ________________________________________ From: Lanati, Matteo Sent: 25 January 2016 15:01 To: Basney, Jim Cc: Globus Toolkit Users List Subject: Re: [gt-user] gsisshd and X11 forwarding Hi Jim, thanks for the hints, I’ll let you know once I’ve tried something out. All the best, Matteo > On 25 Jan 2016, at 14:41, Basney, Jim <jbas...@illinois.edu> wrote: > > Hi Matteo, > > I suggest: > > 1. Check the server's debug output for any X11-related messages. (See > http://grid.ncsa.illinois.edu/ssh/ts_server.html for instructions.) You > may find an error related to xauth indicating that you need to pass a > ./configure --with-xauth option when compiling from source. > > 2. Do you see the same problem using server binaries from Globus or do you > only see the problem when compiling the server from source? > > 3. Do you see the same problem using our latest GSI-OpenSSH pre-release > from https://github.com/globus/gsi-openssh/releases? Any help testing our > pre-release is much appreciated. > > -Jim > > On 1/25/16, 5:53 AM, Lanati, Matteo wrote: >> Hi all, >> >> I¹ve a gsissh server compiled from sources version 6.0.1433516164. >> In the config file of the daemon I set ŒX11Forwarding' to Œyes'. >> However, when I connect from my machine and I try to start a graphical >> application, I get the following error >> >> xterm Xt error: Can't open display: >> xterm: DISPLAY is not set >> >> If I set the variable, (i.e., connecting via ssh and getting a display), >> things work as expected. >> The daemon is using the correct config file, since in the verbose output >> of the client I see >> >> X11 forwarding request accepted on channel 0 >> >> while, if the X11Forwarding option were disabled, I¹d expect the message >> "X11 forwarding request failed on channel 0². >> The behaviour doesn¹t depend on the client platform, I tested it on OSX >> and on Debian (both Globus 6, precompiled from the official repository). >> Are there further suggestions? >> Thanks in advance, >> >> Matteo > Matteo Lanati Distributed Resources Group Leibniz-Rechenzentrum (LRZ) Boltzmannstrasse 1 85748 Garching b. München (Germany) Phone: +49 89 35831 8724
