it would really have to be done by arrangement and one at a time is 
fine. I am also trying x11vnc and running a listening VNC viewer on my 
machine and having the remote ones run x11vnc -connect 
support.example.com to dial into me. It would be a good enhancement to 
Gnome Vino to allow the remote desktop to connect to a listening viewer. 
The disadvantage of x11vnc is that the traffic is not encrypted. The 
advantages are that it is a bit quicker, the command is easier to type, 
there are no ssh keys to worry about (or error messages if the listening 
computer has a different ssh key each time they connect)
Alan.
James Courtier-Dutton wrote:
> 2008/9/4 Chris Smith <cjs94@???>:
>   
>> Alan Bell wrote:
>>     
>>> The remote user is running Ubuntu so can go to their remote desktop
>>> preferences and turn on their VNC server, that is fine, but I can't see
>>> their computer at all, certainly not on port 5900. I know SSH can tunnel
>>> stuff, but I am not quite sure how to set up the routes or ports to get
>>> back along  the tunnel to the initiator from the server end.
>>> Has anyone done this sort of thing? Or has a better solution?
>>>       
>> ssh -R5900:localhost:5900 user@yourmachine
>>
>> When executed from the remote user's machine should do exactly what you
>> want.  You should then be able to start a VNC connection to port 5900 on
>> your machine, which will then be forwarded over the ssh connection.
>>
>>     
>
> But it two of your users connect at the same time, only the first will
> have the 5900 port link.
>
>   
-- 
Alan Bell
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