Once I saw a friend who had created a study room where there were 10 PCs running Ubuntu. From each one of the PCs you could login into your personal account. There was also an 11th PC which was was called the admin PC (If i recall correctly it was supposed to be on all the time while the others not). From this admin pc he could create new user accounts for new students for example and monitor what they where doing if needed.
I am trying to replicated this set up as well but I cannot find information about it. Do you have any suggestion where I could start from in order to achieve my goal?