Hello,
I'm playing around the "udpQueryResponse" feature of the Recursor to implement
an automatic domain search for short hostnames (on dedicated internal resolvers
used by our operational teams).
I have implemented it in the "nxdomain" hook.
Everything works great, but I have 2 questions :
1/ what is the timeout of a "udpQueryResponse" call via dq.followUpFunction ?
is there any relationship with the "network-timeout" parameter ?
2/ my answer is a CNAME (with the FQDN found) with a specific TTL
("cnameTTL=345600") and with a followCNAMERecords follow-up function :
dq:addAnswer(pdns.CNAME, dq.udpAnswer, cnameTTL)
dq.rcode = 0
dq.followupFunction="followCNAMERecords"
But it seems that the response is only cached in the Packet Cache, because 1
hour after the first udp server call, the resolver executes the udp server call
again, and 1H is my default "packetcache-ttl" value.
Maybe it's the wanted behaviour because I use the "nxdomain" hook ?
Is there an implementation that may put my answer in the Record Cache (with
respect of my TTL) ?
Thanks in advance for your explanations.
Best regards,
--
David Gavarret
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