New subject: Knot Resolver: module view is not able to deal with cache

9 Úno 2018

Hi,

I am running knot-resolver version 2.0.0 and I would like to redirect
(STUB) queries from a subnet to a specific nameserver. For that I
created a view configuration for that subnet (see below). A query
without being in that subnet caches the answer but unfortunately the
cache overrides the answer when doing the same query inside the view.

My configuration file looks like that:

---
modules = {
   'hints  > iterate',
   'policy > hints',
   'view   < cache'
}

view:addr('${SUBNET}', policy.suffix(policy.STUB('${IP}'),
{todname('${DOMAIN_SUFFIX}')}))
---

Testing procedure:
1) Try to resolve A record being in the special subnet.
$kdig @${KNOT-RESOLVER} A www.${DOMAIN_SUFFIX}
	-> STUB works and answer is correct
2) Try to resolve A record without being in the special subnet.
$kdig @${KNOT-RESOLVER} ${KNOT-RESOLVER}
	-> view is not triggerd and answer is correct
3) Try to resolve A record again within the special subnet.
$kdig @${KNOT-RESOLVER} A www.${DOMAIN_SUFFIX}
	-> The answer is satisfied from cache, which is not the right answer.

Is it even possible to do that?

Best wishes,
Sakirnth