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

[Remi Gacogne]

On 4/9/19 11:07 AM, Mohamad F. Barham wrote:
> 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.

Looking at the trace would tell you exactly that.

Best regards,

Remi

> ------------------------------------------------------------------------
> *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
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-- 
Remi Gacogne
PowerDNS.COM BV - https://www.powerdns.com/

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