Matt Rose

Your Humble Narrator

How to find your IP address through DNS query

I found this snippet while looking at slides from a talk Rule 53 - Bizarre And Unusual Uses of DNS - FOSDEM 2023 most of which were funny, but not useful, until I came across this slide and it has 2 different methods of getting your IP address via DNS.

  • host -t txt o-o.myaddr.1.google.com ns1.google.com
  • dig myip.opendns.com @resolver1.opendns.com +short

example:

mattrose@fiesole:~$ host -t txt o-o.myaddr.1.google.com ns1.google.com
Using domain server:
Name: ns1.google.com
Address: 216.239.32.10#53
Aliases: 

o-o.myaddr.1.google.com descriptive text "138.197.159.56"
mattrose@fiesole:~$ dig myip.opendns.com @resolver1.opendns.com +short
138.197.159.56

Updated:

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