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About

Cygwin/X consists of an X server, X libraries, and nearly all of the standard X clients.

Cygwin/X uses the Cygwin project which provides a UNIX-like API to Xlib and X clients, thereby minimizing the amount of porting required.

Cygwin/X is a component of a X Windows System which permit to see on your local computer software that run on the server: X11 - How to display remote clients (such as firefox, installation screen) with the X Server CygwinX ?

Support

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

Cygwin doesn't listen anymore on TCP-IP, you have to add the following parameters: 

-listen tcp
  • Start XLaunch
  • In the Extra Settings step, add in the additional parameters box: -listen tcp
  • Windows will ask if you want to permit that Xserver makes TCP connection.

If you have made a configuration file, you can make a shortcut with the following parameters: 

C:\cygwin64\bin>xlaunch.exe -run config.xlaunch

Thanks to putty cygwinx and x11 forwarding connection refused