cygwin-and-x11-forwarding.md

Cygwin and X11 forwarding 
=========================

### If  no able to forward X11 using PuTTY to CygwinX

`
[usename@login1.anselm ~]$ gnome-session &
[1] 23691
[usename@login1.anselm ~]$ PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused
PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused

  (gnome-session:23691): WARNING **: Cannot open display:**
`

  

1.   Locate and modify
     Cygwin shortcut that
    uses
     [startxwin](http://x.cygwin.com/docs/man1/startxwin.1.html)
    locate
    C:cygwin64binXWin.exe
     
    
    change it
    to
    C:*cygwin64binXWin.exe -listen tcp*
    
    ![XWin-listen-tcp.png](XWinlistentcp.png "XWin-listen-tcp.png")
    
     
    
2.   
    Check Putty settings:
     Enable X11
    forwarding 
    
    
    
    ![](cygwinX11forwarding.png)