[Pdns-users] problem with 4.1.0 recursion removed
b.candler at pobox.com
Sun Aug 11 17:34:24 UTC 2019
On 11/08/2019 18:12, Tom Ivar Helbekkmo wrote:
> Hmm. Might it also work to do something really simple involving more
> than one recursor? If the primary recursor had something like this:
> ...and the one at 10.0.0.11 then had:
> ...with 10.0.0.12 being the local "authoritative" server for e164.arpa,
> might then a number end up first being looked up on 10.0.0.12, and then,
> if that failed, using 188.8.131.52? I guess it's possible that 10.0.0.11
> would need a Lua hack to transform a NXDOMAIN into some sort of failure,
> to cause the primary recursor to go to 184.108.40.206 (or a third local
> recursor, if you prefer, of course).
Ergh. Using "failures" like that means you can't handle real failures
properly, to build redundancy into your setup.
It sounds like what you want is a custom authoritative DNS server which
does a local database dip, and if it doesn't find the answer there,
sends to a recursive server instead. dnsdist
<https://dnsdist.org/rules-actions.html> is the tool to look at.
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