[dns-operations] Verifying that a recursor is performing DNSSec validation

Frank Bulk frnkblk at iname.com
Sun Jul 26 05:24:55 UTC 2015

Thanks for sharing.  I take a slightly different approach and also test that
an incorrectly signed zone comes back as SERVFAIL.

I just posted my 1.0 release of the plugin on the NAGIOS Exchange
(https://exchange.nagios.org/directory/Plugins/Network-Protocols/DNS) and it
will be visible once approved.

I'd appreciate your similar feedback.


-----Original Message-----
From: Wessels, Duane [mailto:dwessels at verisign.com] 
Sent: Friday, July 24, 2015 4:42 PM
To: Frank Bulk <frnkblk at iname.com>
Cc: dns-operations at dns-oarc.net
Subject: Re: [dns-operations] Verifying that a recursor is performing DNSSec

Its been a while since you wrote about this, but I've attempted to implement
a nagios plugin along these lines.


I believe it works the way you've described and would welcome any feedback.


> On Jul 13, 2015, at 10:08 PM, Frank Bulk <frnkblk at iname.com> wrote:
> Is there an existing tool, ideally a NAGIOS-friendly one, that performs a
> check against a resolver that it gets an AD back on DNSSec query for a
> that is properly signed, failure for one that is not properly signed, and
> nothing for one that isn't signed?
> http://docs.menandmice.com/display/MM/How+to+test+DNSSEC+validation
> I'd rather not re-invent the wheel if it already exists.
> Regards,
> Frank Bulk
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