$ emacs foo Xlib: connection to "localhost:11.0" refused by server Xlib: Invalid MIT-MAGIC-COOKIE-1 keyI must log out, then log back in with ssh, and X11 forwarding works again, but only for a limited time. I haven't yet measured how long my magic lasts, but after a while attempts to start new X clients begin to fail again, and I must log out and relogin.
This started happening after I upgraded the first box from FC2 to FC3. When I was ssh-ing from FC2 to FC2 everything was working.
WTF?
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