Re: who is responsible to keep the list of used $DISPLAYs at system level

[Yaroslav Halchenko <debian@onerussian.com>]

Thank you Roberto,

The problem seems to boil down to an issue in sshd (bug #152250 since
woody's times), so I am pursuing this subject further on -devel.

But why do you want lower ones for ssh X forwarding? I would do the
opposite probably since lower numbers are easier to remember for VNC
connections, and in ssh you don't really care what the number assigned.
Although idea of fixed mapping from uid to a port sounds worth
considering... 

> For systems with multiple users using VNC, I have seen schemes where you
> get assigned display number that is your uid + some fixed offset.  Then
> you can always get the same display number and you only ever have to
> forward the same port.  That also lets you as the admin keep the lower
> numbers free for ssh with X forwarding.

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