[dnsdist] Dnsdist dynamic backend selection between AUTH and RECURSOR

[Bernd KLAUS]

Hy Otto,

Thanks for your Feedback.
I will look into the KV thing.

Regarding:
„ My first suggestion would be to not need to do the name based
forwarding by separating the incoming recurosr and auth traffic on ip
address or port“

So i should forward all querys to the recursor?

BR Bernd 

> Am 07.01.2023 um 10:40 schrieb Otto Moerbeek <otto at drijf.net>:
> 
> Hi,
> 
> My first suggestion would be to not need to do the name based
> forwarding by separating the incoming recurosr and auth traffic on ip
> address or port. If that is not feasible, take a look at
> 
> https://dnsdist.org/reference/kvs.html
> 
> Have a process update the kv-database and dnsdist can use that to make
> its decisions.
> 
>    -Otto
>    
> 
>> On Sat, Jan 07, 2023 at 10:14:17AM +0100, bernd--- via dnsdist wrote:
>> 
>> Hello!
>> 
>> 
>> 
>> I have a question regarding the architecture of DNSDIST in front of an
>> authorative pdns instance as well as an recursor.
>> 
>> I`ve looked at: https://doc.powerdns.com/authoritative/guides/recursion.html
>> - however, the solutions described are kind of static.
>> 
>> Eg. Domains send to the auth-instance have to be specified manually in the
>> config.
>> 
>> 
>> 
>> What I love to achieve is:
>> 
>> 
>> 
>> Let DNSDIST dynamicly select if a Request should be send to AUTH or
>> RECURSOR.
>> 
>> For Latency, the list of AUTH-Domains should be somehow synced locally to
>> the DNSDIST-Instance itself.
>> 
>> DNSDIST should not ask AUTH always and if it fails forward the request to
>> the Recursor.
>> 
>> Also if another Domain is added to the AUTH-Instance, this domain should be
>> added to the DNSDIST Config.
>> 
>> 
>> 
>> I tought about getting the Domain List via API on Startup and adding new
>> records via Control-Socket.
>> 
>> 
>> 
>> Has someone done a similar thing already?
>> 
>> 
>> 
>> PS: Sorry for some potential false spellings - i`m not native.
>> 
>> 
>> 
>> BR
>> 
>> Bernd
>> 
>> https://berndklaus.at
>> 
>> 
>> 
> 
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>