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I'm learning DNS, and when using the "host" bash function on Kali, i get different results according that i give the IP adress or its domain name equivalent:

host -t ns axis.com
   => 81.68.60.195.in-addr.arpa domain name pointer sherlock01.se.axis.com

host -t ns 195.60.68.81
   => axis.com name server nic2.axis.com.
      axis.com name server nic.axis.com.
      axis.com name server nic4.axis.com.
      axis.com name server nic3.axis.com.

Why is it so ?

Cheers

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1 Answer 1

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First output is the PTR record for the domain axis.com

Second one means that server on ip 195.60.68.81 has 4 NS records:

  axis.com name server nic2.axis.com.
  axis.com name server nic.axis.com.
  axis.com name server nic4.axis.com.
  axis.com name server nic3.axis.com.

Meaning that domain axis.com can be resolved using one of those 4 servers

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