I am a mere user, so I all this stuff sounds to me like giberish. The right solution is to capture the request to these DNS servers, and send to a custom server with a static message "warning.html". Nothing fancy. With a phone number to "get out of jail", so people can call to "op-out" of this thing, so can browse the internet to search for a solution. This or do nothing. http://www.guardian.co.uk/world/2012/jan/18/iran-death-sentence-porn-program... Interpol helps Iran capture a programmer for creating porn sites. Now, if the Interpol want you to block a DNS server, or worse, to spy on users conecting to a DNS server. Will you help? doing nothing is also a good option, methinks. Start medling, redirecting dns trafic, spyiing on the user... all these things are dirty and can't end well. (note, of course, I am a user, so I have a user opinion. ) -- -- ℱin del ℳensaje.