SSH -X doesn't work without an export DISPLAY
Michel Dubois
mdubois at polytech.unice.fr
Mon Jul 9 12:05:40 UTC 2007
Last question,
I readed that the Xforward used the 6010 TCP port. On my red hat this port is
not open.
user at SUNserver :~$ ssh -X redhat
Last login: Mon Jul 9 11:48:58 2007 from SUNserver
[user at redhat ~]$ telnet localhost 6010
Trying 10.0.2.7...
telnet: connect to address 10.0.2.7: Connection refused
telnet: Unable to connect to remote host: Connection refused
And when I try to do a "xhost +SUNserver" on my redhat, I got :
xhost: unable to open display "localhost:12.0"
any Idea
Thanks in advance..............
On Monday 09 July 2007 13:24:50 you wrote:
> A great help will be the ssh+sshd config. files, sshd daemon startup
> parameters, in general sshd specification + security from your x display
> server.Not to be solved easy, this one, needs research, at least for me.
>
> On Mon, 2007-07-09 at 10:33 +0200, Michel Dubois wrote:
> > On Saturday 07 July 2007 10:36:15 harold molly wrote:
> > > Is there specific configuration required to connect to the
> > > ssh daemon on the destination server, solaris sshd man page?
> >
> > As the "ssh -Y" is not supported by the ssh client of SUN, I don't know
> > how to do.
> > I think, there is a problem with the authorization cookies.
> > I forward you an extract of the ssh man page about the Xforwarding :
> >
> > User Commands ssh(1)
> >
> > -X Enables X11 forwarding. This can also be specified on
> > a per-host basis in a configuration file.
> >
> > ENVIRONMENT VARIABLES
> > ssh will normally set the following environment variables:
> >
> > DISPLAY
> > The DISPLAY variable indicates the location of the X11
> > server. It is automatically set by ssh to point to a
> > value of the form hostname:n where hostname indicates
> > the host where the shell runs, and n is an integer
> > greater than or equal to 1. ssh uses this special
> > value to forward X11 connections over the secure chan-
> > nel. The user should normally not set DISPLAY expli-
> > citly, as that will render the X11 connection insecure
> > (and will require the user to manually copy any
> > required authorization cookies).
> >
> > I tried this command on Red Hat server but it doesn't work :
> > xauth add `echo "${DISPLAY}" | sed 's/.*\(:.*\)/\1/'` . `mcookie`
--
Cordialement.
----------------------
Michel Dubois
Ingénieur Support CIMPACA
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