[dns-operations] technical whitepaper: "ISC Passive DNS"

Colm MacCárthaigh colm at allcosts.net
Fri Mar 23 02:03:29 UTC 2012


The paper mentions that RRsets are canonicalised before being
de-duped.  It mentions that the names are downcased and then the RRs
sorted by data-value. Does the downcasing also apply to the names in
the data section?

Are the labels also fully de-compressed at this stage? or could
differences in compression and case cause duplication? I'm curious if
you've observed any differences in how compression is applied.

On Thu, Mar 22, 2012 at 6:24 PM, Robert Edmonds <edmonds at isc.org> wrote:
> hi,
>
> i've written a technical whitepaper on the architecture of ISC's Passive
> DNS implementation, available here:
>
>    http://users.isc.org/~edmonds/passive-dns-architecture.pdf
>
> comments and feedback welcome.
>
> --
> Robert Edmonds
> edmonds at isc.org
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-- 
Colm



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