Hi everyone, I know that the question has already been asked by other users and perhaps also by me, but I have to find a plausible solution to my problem.
I have installed IPFire at some technical institutes, as a firewall for students, the purpose is to authenticate devices and prevent you from browsing some sites
the problem is that the URL Filter system does not work if the site is in HTPPS, and the solution of setting a proxy on each device is not viable
currently, however, all sites are like this, so I can say that it does not work, so what was previously forbidden to browse is now accessible, if for social networks it is not a big problem, a serious problem is detected when it comes to pornographic sites or sale of illicit products
how can i solve the problem, because if i don’t find a solution soon i will be forced to delete all installations