[Pdns-users] Low ttl with combination of forward zones makes queries fail

[Brian Candler]

On 08/02/2022 12:08, Prochazka via Pdns-users wrote:
>
> Pdns recursor config:
>
> ...
> forward-zones=
> forward-zones+=some.domain.tld=AUTH1_ipv6
> forward-zones+=some.domain.tld=AUTH1_ipv4
> forward-zones+=some.domain.tld=AUTH2_ipv6
> forward-zones+=some.domain.tld=AUTH2_ipv4
> forward-zones+=some.domain.tld=AUTH3_ipv6
> forward-zones+=some.domain.tld=AUTH3_ipv4
> forward-zones+=some.domain.tld=AUTH4_ipv6
> forward-zones+=some.domain.tld=AUTH4_ipv4
> ...

Have you tried listing the destinations on the same line, separated by 
semicolons <https://docs.powerdns.com/recursor/settings.html#forward-zones>?

forward-zones+=some.domain.tld=AUTH1_ipv6;AUTH1_ipv4;AUTH2_ipv6;...etc

Personally I would use forward-zones-file to make this cleaner. Also, I 
wouldn't forward to both ipv4 and ipv6 on the same server; if the server 
is down, it's going to be unreachable via both.
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