How to measure the impact of enabling DNSSEC?

Augie Schwer augie.schwer at
Wed Jan 23 19:38:58 UTC 2013

On Tue, Jan 22, 2013 at 2:32 PM, Mark Andrews <marka at> wrote:

> In message <
> CA+fq9b-ym5w+NDXzZNDZWNnqk-V29S19eNB_myJBK-JRGBj9Wg at>,
> Augie Schwer wri
> tes:
> >
> > Would measuring the number of SERVFAIL entries in the "query-errors"
> > category be a good indicator of what impact enabling DNSSEC has?

> DNSSEC is like wearing a seatbelt.  99.99% of the time it has no
> impact.  And like a seatbelt it can save you (reject spoofed answers)
> or hinder you (lookups fail due to the zone not being re-signed)
> on rare occasions.

That makes sense to me; I was looking for a way to quantify the affect
enabling DNSSEC validation in a Bind server.

Measuring SERVFAILs seems to be a good proxy to measure DNSSEC's impact.

Thanks for the reply.

Augie Schwer    -    Augie at    -
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