Comment 1 for bug 25528

Sorry, that should be https://wiki.ubuntu.com/ThinClientHowto

(In reply to comment #0)
> I installed LTSP, as per https://wiki.ubuntu.com/LTSPHowTo
>
> After logging out of an LTSP X session, the login screen would come back up --
> but I found that if you attempted to log back in, you would be sent right back
> to the login screen unless you waited about 5 minutes.
>
> On the server side, I saw that the ssh session was being broken almost as soon
> as it was created. I enabled debugging on the sshd daemon with -ddd, and noticed
> the following in sshd's debug output:
>
> debug6762: bind port 6010: Address already in use
>
> A usenet post suggested that this can be caused by having IPv6 support enabled
> in sshd, which I disabled by appending "AddressFamily inet" to
> /etc/ssh/sshd_config, and the problem no longer occurs.