Check recursor cache for RR

[phaoost]

Hello.

I have a zone cached with zoneToCache.
I would like to check if the record exists in cache and return it or set rcode to pnds.NXDOMAIN without sending query to a nameserver. I don't find functions to parse cache. Is there any workaround?

[omoerbeek]

No. Cached records can be evicted from cache for several reason (TTL, too many things in cache, manual cache flushes, ...). So your suggested way of operation is unreliable and the whole zone could go NXDOMAIN with some bad luck.

It almost sounds like you need an authoritative server to serve your zone.