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I understand basics of how DNS works. My ISP finds out recursively, that my domain is assigned with two nameservers:

Then it asks one of those two for the IP and communicates with server using this IP.

Now is the interesting question. How IPs for the nameservers themselves are resolved?

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marked as duplicate by Evan Anderson, Iain, pauska, Ward, Dave M Jul 9 '13 at 15:52

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

I concur, as the possible dup question needs prior knowledge. – Roman Jul 9 '13 at 7:44
up vote 3 down vote accepted

This is done by means of the so-called Glue Records. More information here on SF or on Wikipedia.

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We normally close these as duplicates rather than answering them – Iain Jul 9 '13 at 8:05
I really pondered flagging as dupe, but taking the Q&A format into account, I decided to answer instead - i felt the question was more along the lines of what's needed rather than what's that thing that i know is needed. – Roman Jul 9 '13 at 8:44

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