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From: <Robert.Atwood@diamond.ac.uk>
To: <cygwin@cygwin.com>
Subject: After updating Cygwin installation  on 29-05-2015 , cygwin-x server does not accept ssh x11 forwarding any more
Date: Fri, 29 May 2015 13:56:54 +0000
Message-ID: <6CCDD8FC6578314C902BBF87D511D9D89B211236@EXCHMBX01.fed.cclrc.ac.uk>
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After updating Cygwin installation  on 29-05-2015 , cygwin-x server does not accept ssh x11 forwarding any more.
I do not modify the configuration files.
I generally start Xwin server using the icon, launch a console to remote server using Putty configured with X11 forwarding, then launch X11 program from that console. 

Now I find that if I start Xwin by xinit, run ssh from inside the Xwin terminal box , even then it does not work, the connection  of 
Prior to today it was always working , and has been for several years. 

What has changed ? 

[kny48981@i12-ws011 ~]$ xeyes
debug1: client_input_channel_open: ctype x11 rchan 3 win 65536 max 16384
debug1: client_request_x11: request from ::1 49318
debug1: channel 1: new [x11]
debug1: confirm x11
debug1: channel 1: free: x11, nchannels 2
Invalid MIT-MAGIC-COOKIE-1 keyError: Can't open display: localhost:13.0
[kny48981@i12-ws011 ~]$

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