cache vs acache in bind 9.4.3

JINMEI Tatuya / 神明達哉 jinmei at
Tue Aug 4 19:03:46 UTC 2009

At 04 Aug 2009 12:49:41 -0400,
"LENA MATUSOVSKAYA, BLOOMBERG/ 731 LEXIN" <lmatusovskay at> wrote:

> Can you pls explain the difference between cache and acache
> (additional cache) under bind 9.4.3? Is it possible to see the
> content of each and how?

"cache" is a widely-common DNS cache (I believe you can use google it,
for example).  The content of "cache" can be dumped via 'rndc dumpdb'.

"acache" is BIND9's internal hot-spot cache to optimize building
authoritative responses.  There's currently no interface to view
acache content.

JINMEI, Tatuya
Internet Systems Consortium, Inc.

More information about the bind-users mailing list