Folks,
                From some lab testing it appears the answer to the above 
question is NO.... but hope springs eternal!

                We'd like to limit RAM usage by BIND (9.9.8/RHEL) on some 
authoritative test servers.  A  load of configured zones would require over 10 
Gig of RAM, but the boxes only have 4 Gig.   We actually query only a few zones 
for testing (response time is not an issue) and didn't want to do the work of 
changing some standard zone lists and data we use.

                Hoped we could set max-cache-size to something like "1000M" and 
the server would load zones up to that limit in RAM.  If it got a query for 
another zone, it would bounce an "older" zone out of RAM and load the zone 
needed for the query.  Eventually the cache would stabilize.  It appears 
max-cache-size is just a resolver setting and BIND always expects enough memory 
to load all cofigured zones to RAM.

                On a larger test server I even tried setting "datasize 1000M" - 
and that didn't seem to have any effect.  BIND started fine and grew to about 
10 Gig.  Didn't expect that.

                Appreciate anyone aware of a config setting that would limit 
usage.
                Many thanks!
John

----------------
John Murtari - jm5...@att.com<mailto:jm5...@att.com>
Ciberspring
office: 315-944-0998

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