in win2k there's a tool called "terminal service" which is said to allow a user to access many windows-based applications, and the technical support staff can use the shasowing capabilities of terminal services to view the terminal sessions and guide users through performing tasks with the win2k user interface.
my questions are:
1) is there a similar tool for *nix users?
2) is it safe to run this kind of service? i remember there's a security hole in x11 forwarding, so i'm wondering if there's a similar problem for win2k.