Re: Tunneling does not seem to work here (newbie)?

[Igor Pechtchanski <pechtcha at cs dot nyu dot edu>]

On Thu, 14 Oct 2004, savantsaro wrote:

> >> box 1: Windows 2000 Server
> >>        cygwin
> >>
> >> box 2: Mac OS X 10.3 (Panther)
> >>
> >> cygwin was installed with openssh, today, from the latest setup.exe.
>
> >FYI, it's probably a good idea to review ><http://cygwin.com/problems.html>
> >before sending bug reports...  Reading
> >/usr/share/doc/Cygwin/openssh.README would also help.
>
> I did read the first one, wasn't aware of the second one. I spent
> several hours researching and trying to solve the problem before posting
> here.
>
> Also, I'm not implying it's a bug - I'm sure there's something I missed,
> I just can't figure out what it is.

Sorry, my bad.  Should've said "problem reports".

> >> Basic scenario:
> >> startxwin.bat -> X icon appears in taskbar, terminal opens
> >> ssh -Y -l username box2name -> ssh connection is established and works fine
> >> emacs & -> [1]+ Stopped      emacs
> >>
> >> Troubleshooting already done:
> >> I have also tried with putty, with X11 tunneling enabled, and tried
> >> running other apps (specifically a java swing application, which does
> >> not stop but simply does nothing on box 1)
> >> The DISPLAY environment variable was not set.
>
> >There's your problem.  You should set it before running "ssh -Y".
> >For example try either
> >
> >export DISPLAY=:0.0; ssh -Y username@boxname
> >
> >or even
> >
> >DISPLAY=:0.0 ssh -Y username@boxname
> >
> >-- both should work.
>
> I did set DISPLAY before running ssh, before I posted here.
>
> I just tried your examples, but still get the same result.
>
> >> I tried setting it to "localhost:0.0" and to ":0", with no effect.
> >> The config files for ssh (~/.ssh/config and /etc/ssh_config) did not
> >> exist.
>
> >Ah.  Did you run /bin/ssh-user-config?
>
> No, I wasn't aware of it.

It's mentioned in /usr/share/doc/Cygwin/openssh.README.  Actually, the one
you'd need to run is probably ssh-host-config (as that's the one that
creates /etc/ssh_config)...

It's been suggested before that the "first time install" section in the
openssh.README be marked with huge banners and made much more prominent...
Corinna, are you reading this? ;-)

> I have run it now, created all the identities and used none of them.
> Still no change.
>
> >> I created the first one with a single line (ForwardX11 yes) with no
> >> change.
> >>
> >> Please help. I know cygwin is a good, working program, and I'm an
> >> intelligent computer guy - why won't it work for me?
>
> >Maybe Cygwin just doesn't like you? ;-)
>
> The thought had occurred to me.

Try running ssh-host-config, and see if that works...  If not, it's time
to debug -- maybe X11 forwarding is not enabled on the remote end at all.
Try "ssh -Yvvv", and see if that provides any clues...
	Igor
-- 
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