Hi Carlos, On 03/12/2018 02:28 PM, Carlos N wrote: > We are running some tests over pdns-recursor 4.1.1 and where finding a > forwarding scenario that is not working the same way as in 4.0.4 version. > > We have forward-zones-recurse=.=8.8.8.8 configured in our recursor. > > After requesting wikipedia name we can see the cache entry that has bben > created. > [...] > The following attempts to resolve the same query are not answered form > cache and pdns-recursor goes always to 8.8.8.8 to provide an answer. > [...] > In version 4.0.4 pdns-recurasor is able to answer the queries using > available cache entry un TTL expires
I can indeed reproduce this issue. The root cause is that 4.1 only uses non-authoritative cached data for "infra" queries, ie retrieving NS and their IP addresses. This works quite well except for forward-zones-recurse, where the answers come from a recursor instead of an authoritative server and thus don't have the AA bit set. Would you mind opening a new issue for this bug at https://github.com/PowerDNS/pdns/issues/new ? And out of curiosity, why are you using the recursor if you are effectively forwarding all your queries to another recursor? Kind regards, -- Remi Gacogne PowerDNS.COM BV - https://www.powerdns.com/
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