With "dnssec-validation AUTO;" I get:

# delv +cd www.popularsba.com
;; resolution failed: timed out


With "dnssec-validation NO;" I get:

# delv +cd www.popularsba.com
;; resolution failed: timed out
; unsigned answer
www.popularsba.com.     279     IN      CNAME   
www.popularsba.com.00d1n000002kxqqua0.live.siteforce.com.


CAPS just to show the difference in .conf


--

Ismael Suárez Maldonado | UNIX ADM | Coqui.Net Corp / ClaroTV
ismael_sua...@coqui.com<mailto:ismael_sua...@coqui.com> | T: 787-793-0001 x 4007

-----Original Message-----
From: Petr Menšík 
<pemen...@redhat.com<mailto:petr%20%3d%3futf-8%3fq%3fmen%3dc5%3da1%3dc3%3dadk%3f%3d%20%3cpemen...@redhat.com%3e>>
To: bind-users@lists.isc.org<mailto:bind-users@lists.isc.org>
Subject: Re: Dnssec-validation auto
Date: Fri, 13 Nov 2020 11:26:17 +0100


Hi Ismael,


easiest way to check validation is using delv tool from BIND 9.11+. It

uses the same algorithm as BIND server does. If you get SERVFAIL from

your recursive server, try adding +cd parameter to delv or dig. When it

works with +cd, validation is responsible somewhere in recursive servers

chain.


It shows just unsigned to me, today.


$ delv +cd

<http://www.popularsba.com>

www.popularsba.com


; unsigned answer

<http://www.popularsba.com>

www.popularsba.com

.       282     IN      CNAME

<http://www.popularsba.com.00d1n000002kxqqua0.live.siteforce.com>

www.popularsba.com.00d1n000002kxqqua0.live.siteforce.com

.

<http://www.popularsba.com.00d1n000002kxqqua0.live.siteforce.com>

www.popularsba.com.00d1n000002kxqqua0.live.siteforce.com

. 282 IN CNAME

4.0p13m0000008e6qcaq.00d1n000002kxqqua0.gslb.siteforce.com.

4.0p13m0000008e6qcaq.00d1n000002kxqqua0.gslb.siteforce.com. 102 IN A

161.71.31.253


Cheers,

Petr


On 11/13/20 5:26 AM, Ismael Suarez wrote:

Hi all


The following domain (

<http://www.popularsba.com>

www.popularsba.com

) does not resolve with dnssec validation set to auto, but when I change the 
validation off it works.


Why is this? How can I check this validation?


Using bind 9.12


Thanks to all

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