Home > Hack > TCS.com hack exposes difference between Google public DNS and open DNS services

TCS.com hack exposes difference between Google public DNS and open DNS services


TCS.com belonging to Tata Consulatcny Services was hacked earlier todaya and it is claimed to be a attack over a DNS loophole.

Using nslookup, the diiference between Google public DNS and open DNS were studied.

On using nslookup for openDNS the result for both tcs.com and http://www.tcs.com were the same.

nslookup for tcs.com and www.tcs.com in open DNS

On using nslookup for Google public DNS the result for both tcs.com and http://www.tcs.com were different.

For http://www.tcs.com the Address was 205.178.152.154 while for tcs.com it was 216.15.200.140.
nslookup for www.tcs.com and tcs.com in Google public DNS

Thanks to Albins for pointing out the difference.

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Categories: Hack Tags: , , , ,
  1. crz
    February 7, 2010 at 5:16 pm

    So what do you infer?

  2. February 7, 2010 at 5:22 pm

    What should I infer?? Being a Google fan, I should have kept mum. Correct me if I have gone wrong some where. 😀

  3. February 7, 2010 at 9:12 pm

    DNS hijack on top Indian IT consultants ! Good posting as well. informative. !

    • February 7, 2010 at 9:15 pm

      Thnkz 4 droppin in..

  4. Alok
    February 7, 2010 at 10:17 pm

    Yes its google DNS that being hacked not Tcs.com use Opendns as Ip and site opens perfectly.

  5. February 8, 2010 at 9:50 am

    Still It is Showing different “A” records for tcs.com and http://www.tcs.com

  6. February 8, 2010 at 9:51 am

    Forgot to attach Print screen : http://www.twitpic.com/120ikm

  7. March 5, 2010 at 1:44 pm

    information is very interesting, thanks for sharing

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