$ xauth -f /home/user/.Xauthority add "test-box.domain.com:3" . e16fffffffffffffec00000000000000 xauth: (argv):1: bad display name "test-box.domain.com:3" in "add" command using Debian GNU/Linux squeeze/sid
$ xauth -f /home/user/.Xauthority add "test-box.domain.com:3" . e16fffffffffffffec00000000000000 xauth: (argv):1: bad display name "test-box.domain.com:3" in "add" command using Debian GNU/Linux squeeze/sid