[dns-operations] Basic question...Re: Using all the addresses of every name server? (Was: ANY efforts at taking additional responses more compact?

Edward Lewis edward.lewis at icann.org
Tue Sep 13 14:40:33 UTC 2016

I haven't been following these threads all that closely, but this came to mind.

On 9/12/16, 14:11, "dns-operations on behalf of Viktor Dukhovni" <dns-operations-bounces at dns-oarc.net on behalf of ietf-dane at dukhovni.org> wrote:

>... multiple IP addresses of a multi-address name 

How can you tell if a set of IP addresses are listened-to by the same computer process (much less physical/virtual machine)?

What I mean is (from past experience):

Case 1:

See: http://nanog.org/meetings/nanog31/presentations/lewis.pdf, slides 8 & 9.

Note especially the story on slide 9.

The IP addresses belonged to the same domain name but different hardware.

Case 2:

Running name servers listening to 100(0)'s of IP addresses, each corresponding to a different domain name.

This could get confusing - my basic question, given any two IP addresses, how would you know they are handled by the same process?  (Outside of asking the name server to identify itself.)

(By IP address, I mean *any* IP address, v4, v6, or any other.)

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