Quote:
Originally Posted by photon
No matter what you do, if you allow a connection to the Internet people will be able to use that connection to get around any filters you put in place, period.
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No matter how long this thread goes, Photon's statement above will remain the truest and most important.
I spent a decade dealing with requests like this, and I can promise you that the likely upkeep is gonna crush you. Unless there is an 'absolute' that can be blocked (like a specific domain, IP, port number), you will forever be playing catchup.
My honest advice would be to put your efforts and resources into identifying unacceptable traffic, and enforcing solid, coherent and Terms of Service. You will likely get MUCH more bang for your buck, and not become completely burned out while trying to keep up.