what does "max-ncache-ttl 0;" mean?

John W. Blue john.blue at rrcic.com
Wed Mar 2 07:17:32 UTC 2016



-----Original Message-----
From: bind-users-bounces at lists.isc.org [mailto:bind-users-bounces at lists.isc.org] On Behalf Of blrmaani
Sent: Wednesday, March 02, 2016 1:13 AM
To: comp-protocols-dns-bind at isc.org
Subject: what does "max-ncache-ttl 0;" mean?

man pages for named.conf says "max-ncache-ttl <integer>" and only talks about default values and max values - no mention of minimum-value. 

Does "max-ncache-ttl 0;" mean never cache negative queries (queries resulting in NXDOMAIN) or does it mean cache negative queries forever?

Too lazy to test this option or look bind code :), hence posting here - apologies in advance..!!

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