X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=1.0 required=5.0 tests=AWL,BAYES_50,SARE_SUB_MINUTES,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org To: cygwin@cygwin.com From: Andrew DeFaria Subject: Re: Can't talk to X server through ssh tunnel after ~ 18 minutes Date: Thu, 26 May 2011 22:05:36 -0700 Lines: 35 Message-ID: References: <4DDD4402.5010301@tundraware.com> <4DDE743B.9060504@dronecode.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110424 Lightning/1.0b2 Thunderbird/3.1.10 In-Reply-To: <4DDE743B.9060504@dronecode.org.uk> X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On 05/26/11 08:39, Jon TURNEY wrote: > On 26/05/2011 00:47, Andrew DeFaria wrote: >> On 5/25/2011 11:01 AM, Tim Daneliuk wrote: >>> On 5/25/2011 12:43 PM, Andrew DeFaria said this: >>>> I ssh from my Cygwin box to a Linux machine (happens with Solaris >>>> machines >>>> too) and I can run X applications back to Cygwin/X without a problem. >>>> However, after a few minutes something happens to the tunnel and I >>>> can no >>>> longer put up any X windows: >>> What arguments are you using to start the ssh session? >> The only argument is -X. Like I said, I was able to put up X windows >> through >> the ssh tunnel. Then, after some, it stops working - consistently. > > I'd guess this is something to do with an untrusted xauth cookie with a 20 > minute timeout being generated, although exactly how that can happen > if you > are using an X server without the SECURITY extension (as Cygwin/X > servers have > been built for the past couple of years), I don't quite understand. > > See 'ForwardX11Timeout' in 'man ssh_config' > > Use 'ssh -Y' Ah yes. That seems to have done it. Thanks. Interestingly Cygwin has this ForwardX11Timeout in man ssh_config but the Linux system doesn't! Now I need to characterize my problem with the samba serviced shared home directory that keeps me from sharing my ~/.ssh/config... -- Andrew DeFaria How come abbreviated is such a long word? -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple