Why does my Red Hat Enterprise Linux 4 not forward X11 Connections?

Updated -

By default, Red Hat Enterprise Linux 4 is not configured to allow requests for X11 forwarding. When connecting to an SSH server you must specify the -X or -Y option on the command line as per the example below.

ssh -X username@hostname

Alternatively, you can ommit the command line option if you enable the ForwardX11 option i...

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