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|    comp.protocols.tcp-ip    |    TCP and IP network protocols.    |    14,669 messages    |
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|    Message 14,195 of 14,669    |
|    Jorgen Grahn to bit-naughty@hotmail.com    |
|    Re: Adult site blocking    |
|    20 Dec 15 18:14:36    |
      From: grahn+nntp@snipabacken.se              On Sun, 2015-12-20, bit-naughty@hotmail.com wrote:       > OK, so I had an experience with censorship - someone was trying to       > go to a particular porn site, and it said "The governent has blocked       > this page" or whatever. I'd like to know how this is pulled off -       > the router in the middle didn't only block the HTTP request, but       > also - *answered* it, saying that the site was blocked!! I thought       > routers were low level TCP/IP beasts, how are they answering HTTP       > requests? Or am I barking up the wrong tree? Did it get the text       > "The government" blah blah from a _server_ somewhere? How?              There is this: https://en.wikipedia.org/wiki/Deep_packet_inspection              But perhaps the DNS system had simply been subverted, so your browser       was not even /trying/ to talk to the right server.              /Jorgen              --        // Jorgen Grahn |
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