My state has a strict policy about porn. We blocked thousands of IPs (of Porn Sites) so that from within the state they can not be accessed. Which was working fine for like less than a month and then people discovered Hotspot Shield, Cyberghost VPN, UltraSurf, TunnelBear and various other proxy-tools by which they can now access all the blocked content.
Networks etc is not my field, I'm a Software Engineer and one hell of it and with the tag of a "great computer expert" on me, I've been assigned the job to find a solution for a problem.
I have a general of How these Proxy Tools work, they mask the user IP with a fake one and the request IP instead of being going to the destination goes to the tools server which SERVER the actual request back. Doing so bypasses the IP restrictions etc.
What is the solution for this problem. I don't even know where to start looking.
yu can Forget my scenario and just explain to me a fool proof way of blocking content in your region.