Servfail on Bind -9.16.1
Matus UHLAR - fantomas
uhlar at fantomas.sk
Sun Nov 22 15:34:38 UTC 2020
>On Sun, Nov 22, 2020 at 8:14 AM Ismael Suarez <Ismael_Suarez at coqui.com>
>> Also, just for testing. Similar happened to me. Try with
>> ‘dnssec-validation no;’
On 22.11.20 09:05, upen wrote:
>Thank you Ismael, you are right .
>The resolution worked after setting ^^^
>So to answer Julien also I believe +nodnsdec in the dig would have helped
>So validation is not working it seems . What could be reason for that? Is
>something wrong on my configuration or network that the dnssec validation
>can not be used in my configuration.
it's possible that your provider does DNS hijacking.
DNS over TLS or DNS over HTTPS could help verify that.
>I can set to auto again and run dig +trace if that will help
>troubleshooting further why validation may not be working. I’m unsure if
>this is expected or something could be wrong somewhere on my end /network .
>> From: bind-users <bind-users-bounces at lists.isc.org> on behalf of julien
>> soula <julien.soula at univ-lille.fr>
>> Sent: Sunday, November 22, 2020 9:31:56 AM
>> To: upen <upendra.gandhi at gmail.com>
>> Cc: bind-users at lists.isc.org <bind-users at lists.isc.org>; BIND Users <
>> bind-users at isc.org>
>> Subject: Re: Servfail on Bind -9.16.1
>> On Sat, Nov 21, 2020 at 03:20:26PM -0600, upen wrote:
>> > .../...
>> > default.log:21-Nov-2020 15:11:18.008 client @0x7fb6a800c0a0
>> > (www.facebook.com<http://www.facebook.com>): query failed (broken trust
>> chain) for
>> > www.facebook.com/IN/A<http://www.facebook.com/IN/A> at query.c:6883
>> > dnssec.log:21-Nov-2020 15:11:18.008 validating www.facebook.com/CNAME:<
>> http://www.facebook.com/CNAME:> bad
>> > cache hit (com/DS)
>> > lame-servers.log:21-Nov-2020 15:11:18.008 broken trust chain resolving '
>> > www.facebook.com/A/IN':<http://www.facebook.com/A/IN':> 126.96.36.199#53
>> it seems to be an error in dnssec. So I suppose that "dig +nodnssec
>> ...." works.
>> May be "dig +trace facebook.com" will give you more hints.
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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