serve-expired servfail

Joe Williams williams.joe at
Wed May 10 15:23:58 UTC 2017


The new serve-expired feature works great but I am curious if it's possible
to configure things to only serve a stale record in the case of a SERVFAIL.
I am hoping to avoid corner cases where an expired record is served with an
IP that has been removed from production while the prefetch completes. I'm
fine with it if unbound is getting SERVFAILs from the upstream name server
to mask temporary connectivity or server issues.

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