Maintained by: NLnet Labs

[Unbound-users] Logging DNSsec errors

W.C.A. Wijngaards
Fri Feb 8 09:01:19 CET 2013


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Hi Michiel,

On 02/07/2013 11:19 PM, Michiel Piscaer wrote:
> Hi,
> 
> Our unbound installation is handeling 2044 DNS query's per seconde,
> on this installation we do DNSsec validation. In the .nl zone
> DNSsec is actively used. For a lot of domain administrators DNSsec
> is a new protocol. This results in zones that are mis-configured
> for DNSsec. This way our client can not visit the website. The
> client checks why he can't vite the website with friends or google
> DNS. Those services are not validating with DNSSec so the website
> is reachable.
> 
> This results in an question on our helpdesk by the client.
> 
> Now my question:
> 
> I want to know two this.
> 
> 1. Is it possible to get statistics about ServFails because of
> DNSSec?

Yes, unbound-control stats prints out the num.answer.bogus and
num.rrset.bogus counts.  man unbound-control documents it.

> 2. I whould like to generate an log file or syslog message what
> query is not DNSsec valid?

use val-log-level: 1 to printout just the queries that have problems.
with val-log-level: 2 it prints out the query names with detailed
error messages (exactly what failed that caused it to be classified as
bogus by unbound).

Best regards,
   Wouter

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