Find Out If My DNS Server Free From DNS Cache Poisoning Bug Or Not

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How do I verify that my ISP or my own recursive resolvers are free from DNS cache poisoning bug that is promised full disclosure of the flaw by Dan on August 7 at the Black Hat conference? How do I test my dns server for DNS cache pollution or DNS Cache Poisoning bug?

nslookup / host Dns Client Testing Command Not Found on Debian / Ubuntu Linux

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Q. I’m not able to run nslookup or host command under Debian or Ubuntu Linux. In fact, these commands are missing from my installation. How do I install nslookup and related dns client commands?
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