Medicina - Facultad de Ciencias Médicas, Universidad Nacional del Comahue, Cipolletti, Río Negro, Argentina
We are using one Debian GNU/Linux to run Apache web server, Php+MySql and a Samba file server as primary domain controller to 40 desktops for all the offices.
We chose Debian GNU/Linux for easier configurability, updating, totally free solution, stability and availability.