pre heat cache

Tony Finch dot at
Thu Feb 18 11:24:19 UTC 2016

William Taylor <william.taylor at> wrote:

> Is there anyway to pre-heat the cache in bind on startup besides having
> a custom script that did a bunch of queries on top hosts?

Funnily enough I recently wrote a tool to do this but I have been failing
to publish a blog article about it... Have a look at this:

It takes several minutes to run, depending on the size of the
named_dump.db file and the query concurrency you ask for. The default is
-m2000; if you go above 5000 the target server is likely to get
uncomfortable. Also, use -qqq to reduce the amount of gubbins on stdout :-)

f.anthony.n.finch  <dot at>
Tyne, Dogger: Southerly at first in east Dogger, otherwise westerly or
southwesterly, 4 or 5. Slight. Rain then fair. Moderate or poor, becoming

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