These items allow the traffic to be forwarded over to your computer from the host and also allow forwarding to be used.
Locate and uncomment (or add) the following lines: X11Forwarding yes The SSH configuration file is located at /etc/ssh/sshd_config. Other Linux distributions will have a very similar SSH daemon configuration. In this basic example I am using a standard CentOS 6.5 installation with GNOME installed. There are a few minor changes needed on your Linux box to enable X11 forwarding. X11 forwarding is a mechanism that allows a user to start up remote applications but forward the application display to your local Windows machine. That's all well and good but what about if you need to use some tool that has a GUI? More experienced users know that you can connect to a Linux server quite easily using a variety of SSH (Secure Shell) clients.