[Pdns-users] {Content?} Re: Recursor reply SRVFAIL from the first NS server and does not try other NS servers

[Mohamad F. Barham]

Dears,


this domain get resolved fine now from here, but the thing how can I test that my recursor is trying all NS servers specially when the first one is down, and not to reply with timeout while didnt check other NS servers.





[cid:image002.png at 01D327F4.25E9A910]


Mohamad Barham

System administrator | Information Technology Department

Birzeit University

P.O.Box. 14, Birzeit, Palestine

Tel: + 970 22982012 | Mob: +970 597 861929 | Ext: 5616

mbarham at birzeit.edu | www.birzeit.edu<http://www.birzeit.edu/>






________________________________
From: Pdns-users <pdns-users-bounces at mailman.powerdns.com> on behalf of Remi Gacogne <remi.gacogne at powerdns.com>
Sent: Tuesday, April 9, 2019 11:14:02 AM
To: pdns-users at mailman.powerdns.com
Subject: {Content?} Re: [Pdns-users] Recursor reply SRVFAIL from the first NS server and does not try other NS servers


Hi Mohamad,

Would you mind providing a trace, either by starting the recursor with
--trace, which is very verbose, or by using:

 rec_control trace-regex safariaquapark.com

To enable tracing for this domain only. You can revert that later with

 rec_control trace-regex ''

In my own tests the recursor does try all NSs, but it looks like queries
to ns1.i-net.ps and ns4.i-net.ps end up as timeout most of the time, at
least from here.

Best regards,

Remi

On 4/9/19 8:42 AM, Mohamad F. Barham wrote:
> I'm using
>
> PowerDNS Recursor 4.1.12
>
> Using 64-bits mode. Built using gcc 4.8.5 20150623 (Red Hat 4.8.5-28)
>
>
>
> __ __
>
> cid:image002.png at 01D327F4.25E9A910____
>
>
>
> *Mohamad Barham__*
>
> System administrator | Information Technology Department____
>
> Birzeit University____
>
> P.O.Box. 14, Birzeit, Palestine
>
> Tel: + 970 22982012 | Mob: +970 597 861929 | Ext: 5616
>
> mbarham at birzeit.edu | www.birzeit.edu <http://www.birzeit.edu/>
>
>
>
>
>
> ------------------------------------------------------------------------
> *From:* bert hubert <bert.hubert at powerdns.com>
> *Sent:* Monday, April 8, 2019 2:13:12 PM
> *To:* Mohamad F. Barham
> *Cc:* pdns-users at mailman.powerdns.com
> *Subject:* Re: [Pdns-users] Recursor reply SRVFAIL from the first NS
> server and does not try other NS servers
>
> On Mon, Apr 08, 2019 at 10:53:24AM +0000, Mohamad F. Barham wrote:
>> I have pdns-recursor running on the campus, and I have issue with NS servers :
>
> Hi Mohamad,
>
> Before we can investigate, which exact version of the PowerDNS Recursor are
> you running? Do you run with any Lua scripts?
>
>         Bert
>
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--
Remi Gacogne
PowerDNS.COM BV - https://www.powerdns.com/

~~~~~~~~~~~~~~~~~~~~~~~~~~
The information contained in this communication is intended solely for the use of the individual or entity to whom it is addressed and others authorized to receive it. It may contain confidential or legally privileged information. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by responding to this email and then delete it from your system. The University is neither liable for the proper and complete transmission of the information contained in this communication nor for any delay in its receipt.
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