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Author Topic: Blacklist patch for Acrylic DNS Proxy (Delphi 7)  (Read 3047 times)


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Blacklist patch for Acrylic DNS Proxy (Delphi 7)
« on: November 24, 2009, 12:50:39 PM »
Hi DC,

I need a dns proxy, and Acrylic DNS Proxy works but only lacks one thing: blacklisting certain IP from DNS answers.

Luckily Acrylic DNS Proxy is open source software written in Delph 7, and I need DC community to help adding this little function.

In AcrylicConfiguration.ini I hope there's a new section


So whenever PrimaryServerAddress answers, Acrylic will continue lookup on SecondaryServerAddress, if it still answers 192.168.1.* or, then to TertiaryServerAddress until a correct answer is retrieved.

If all answers were in the blacklist, I hope Acrylic could yield SERVERFAIL if there's no Default IP.

And Acrylic can log this fail.

I know under one circumstance things might get somehow complicated, when DNS returns multiple records and one of them unfortunately were included in the blacklist, I hope that IP could be eliminated in the protocol level and cache only the rest of correct answers. If this is hard to implement, simply return SERVERFAIL.

I hope this won't take you guys too much time, and any help or suggestions is appreciated.

Thank you guys!
« Last Edit: November 24, 2009, 12:59:47 PM by electronixtar »