[dnsdist] rcode refused query direction

[Nemanja Zeljkovic]

Hello,

I’m trying to direct queries based on the response from the “default”
server. Basically what I’m trying to accomplish is if this server doesn’t
know about this domain, try a second one. By default  that would be
checking for dnsdist.REFUSED since it would be trying to recurse, and the
NSs are configured not to recurse. I have one default server
with leastOutstanding, and one server in a pool which would be used as the
second one.

I assumed something simple as:
addAction(RCodeRule(dnsdist.REFUSED), PoolAction("ph”))

and it didn’t complain:
> showRules()
#     Matches Rule
Action
0           0 rcode==Query Refused                                     to
pool ph
>

would redirect the query to pool “ph”, but all I see is queries are
executed on the main NS (counter keeps increasing), and I get a REFUSED
back which would also mean it never contacted server in pool “ph” since it
knows about the domain.

Am I asking too much from dnsdist, or have wrong expectations with
addAction?

Thanks!
Nemanja
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