Hello. I am an Austrian pupil who is being educated to become a computer scientist. My current problem is that my school (about 750 people) needs WiFi. The WiFi is supposed to be usable with any Wi-Fi device (Phone, Tablet, laptop,...). However our teachers are supposed to operate without any blocks while the students are only allowed to use the internet with certain limits (certain sites that aren't accessible, downloadlimit). All of this is probably only possible over a proxy server. But I have no idea what kind of proxy I have to use.
Is there any software that specializes on Wi-Fi administration? Is there maybe a certain hardware device like an access-point controller?
I have a rather good budget (about 5000-6000 €).
(excuse me for unbearable grammar mistakes)