Hello all,
I'm setting up an instance of the PowerDNS Recursor. I would like to
override the TTL for particular queries of particular domains: I need
any CNAME from one particular domain to have an overridden, very low TTL.
I wrote a Lua script which does this via "postresolve", however, it only
works halfway. It succeeds in getting clients to see the low TTL. But
what I also need is for the Recursor to honor this lower TTL when it
decides whether or not to check for updates.
I've experimented with "preresolve" but I don't seem to be finding any
way to modify the returned query, as that executes before the query
takes place. And nothing I do in "postresolve" affects the Recursor's
/internal/ opinion of the TTL. Basically, preresolve is too early and
postresolve is too late.
If anyone can think of a way to get the Recursor to behave this way, I
would appreciate it. Thanks.
-Xan
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