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.

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.

Thanks to Albins for pointing out the difference.

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