Re: SSH X11 forwarding issues

[Jack Tanner <ihok at hotmail dot com>]

-Y is really what you want. Aside from that, anything useful from -vv? 
What about the server logs? And /tmp/Xwin.log? And what do you mean by 
"freezes"?

Philip H. Schlesinger wrote:
> Hi Sterling.
>
> I checked the man page and -Y is just -X with less security:
>
> -X      Enables X11 forwarding.  This can also be specified on a 
> per-host basis in a configuration file. X11 forwarding should be enabled 
> with caution.  Users with the ability to bypass file permissions on the 
> remote host (for the user's X authorization database) can access the 
> local X11 display through the forwarded connection.  An attacker may 
> then be able to perform activities such as keystroke monitoring.
>
> -Y      Enables trusted X11 forwarding.  Trusted X11 forwardings are not 
> subjected to the X11 SECURITY extension controls.
>
> Nevertheless, same problem - it freezes after I type in my password.
>
> Other ideas?
>
> - Phil
>
>
>
>
> Sterling Baker wrote:
> > I believe the use of '-X' has been depreciated.  Try using '-Y' instead.
> >
> > Sterling
> >
> >
> > -----Original Message-----
> > From: cygwin-xfree-owner@cygwin.com
> > [mailto:cygwin-xfree-owner@cygwin.com] On Behalf Of Philip H.
> > Schlesinger
> > Sent: Wednesday, April 05, 2006 10:07 PM
> > To: cygwin-xfree@cygwin.com
> > Subject: SSH X11 forwarding issues
> >
> > Hi all.  I just upgraded my Cygwin to the latest version and found a 
> > rather interesting problem:
> >
> > I can do the following command in the bash window with no problem:
> >
> > ssh <username>@<server location>
> >
> > it prompts me for my password and then takes me in from there.
> >
> > --
> >
> > However, if I:
> >
> > startx
> > ssh -X <username>@server location>
> >
> > It prompts me for my password and then hangs.
> >
> > --
> >
> > If I:
> >
> > startxwin.bat
> > ssh -X <username>@server location>
> >
> > same problem: It prompts me for my password and then hangs.
> >
> > --
> >
> > The only way I've successfully made a connection with X forwarding is:
> >
> > startxwin.bat
> > Execute putty for windows with X11 forwarding enabled
> > Enter username and password
> > And I'm off and running...
> >
> > Help?????
> >
> > - Phil


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