[dnsdist] dnsdist NOTIFY distribution

[Martin Toth]

This is really cool idea, will test it today and let you know if it works.

Stay tuned!

BR. Martin

> On 27 Feb 2019, at 06:34, abang at t-ipnet.net wrote:
> 
> 
> 
> Hello Martin,
> 
> Am 26. Februar 2019 17:07:25 MEZ schrieb Martin Toth <snowmailer at gmail.com <mailto:snowmailer at gmail.com>>:
>> Hi,
>> 
>> Thanks for your interest. I am using dnsdist as a loadbalancer and
>> slave nodes are in DMZ behind dnsdist. Only dnsdist server has public
>> IPs that can be reached from Master public IP (master is located in
>> other datacentre).
>> Is my usecase not designed well? I thought dnsdist was designed to be
>> used as LB for DNS services. Do you have any suggestions how to solve
>> this or what workround should I use ?
> 
> Did not try it myself, but could be an option: https://doc.powerdns.com/authoritative/manpages/nproxy.1.html <https://doc.powerdns.com/authoritative/manpages/nproxy.1.html>
> 
>> 
>> Thanks.
>> 
>> BR,
>> 
>>> On 26 Feb 2019, at 16:59, Remi Gacogne <remi.gacogne at powerdns.com>
>> wrote:
>>> 
>>> Hi Martin,
>>> 
>>> On 2/26/19 3:58 PM, Martin Toth wrote:
>>>> I just want to ensure myself how NOTIFY distribution in DNSDIST
>>>> exactly works. My setup looks like this - MASTER -> DNSDIST -> SLAVE
>>>> PDNSs (pool of 4 nodes)
>>>> 
>>>> My Question is if MASTER will send NOTIFY to DNSDIST, will DNSDIST
>>>> redistribute these NOTIFY to all SLAVES in DNSDIST backend? How to I
>>>> achieve situation that all slaves in dnsdist backend will be
>> notified
>>>> of zone change on MASTER?
>>> 
>>> I'm afraid you can't, dnsdist can route a query only to a single
>>> backend, with the exception of the TeeAction, but I would advise
>> against
>>> trying to use it for that case.
>>> Is there a reason your master doesn't speak to the slaves directly?
>>> 
>>> Best regards,
>>> -- 
>>> Remi Gacogne
>>> PowerDNS.COM BV - https://www.powerdns.com/
> 
> 
> Winfried 
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