[dnsdist] dnsdist NOTIFY distribution

[abang at t-ipnet.net]

Hello Martin,

Am 26. Februar 2019 17:07:25 MEZ schrieb Martin Toth <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

>
>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/


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