how to remote controlling the ubuntu system

[vikingy]

My server is Ubuntu 8.04 .I want to remote control the ubuntu system for multi-users on graphical model, with other windows or ubuntu systems.
And I have installed the VNC, but it seems that it just could be used for one user.Does anyone tell me how to achieve this function while no impact among different users?

bin
2008-05-16 



vikingy 
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