Precaching in Bind 9 and up

Evan Hunt each at
Tue Dec 13 15:39:00 UTC 2011

> Does the resolver of Bind 9 and up use any kind of precaching of resource
> records by default? For instance, does the Bind resolver requery a resource
> record at an authoritative name server before the cache registry for that
> particular resource record expires (i.e., at a time < TTL)? If it does so by
> default, at which point in time will it perform precaching (e.g., TTL-10%)?

No.  We've discussed it as possible future work, but it hasn't happened yet.

Evan Hunt -- each at
Internet Systems Consortium, Inc.

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