SSH X11 forwarding issues

[Jack Tanner]

-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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