Did Server Remote Install service
The only server you need to migrate a complete school to opensource.
Full info here: www.debianshop.be
requirements computer/server:need two networkcards in the pc
first netwerkcard for the internetacces, the second goes to the classroom computer's switch (see diagram)
needs ubuntu or debian to be installed with ssh access or win xp or win7 + teamviewer access (see howto)
We install a new debian 7 os with the installer, ready to go