block youtube app and facebook app on mobiles phones
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@IT-ADMIN said:
also blocking by IPs is not efficient, because IPs of servers keep changing, and it is difficult to know all IP range used by a specific server
Correctly, blocking like you are doing is effectively impossible. There is always a simple workaround.
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@IT-ADMIN said:
in the begining i though that app can be blocked by closing some ports numbers, but it seem that almost all of the apps use either 80 or 443, and if close one of these port it is like i closed everything !!!
Yes, normal businesses block all traffic on all ports and only allow 80 and 443 (web ports) via proxies. So any app that used another port would be assumed to be always broken, even in many homes. You need to proxy all traffic, not just some traffic, and you need a proxy that can terminate SSL for the end users are you are wasting your time because basically every site supports SSL today and if you can't filter SSL the proxy is pointless.
