IME the only reason to clear the cache is if there's an entry in the
cache is causing a problem somehow.

The cache is cleared when the machine reboots and whenever the service
is manually restarted. If you're keeping up with your Patch Tuesday
updates each month the cache is being cleared monthly anyway.

On 5/21/2010 11:33 AM, mb wrote:
> Good point Ben.  That slipped by me.  That cache is not replicated.  So, 
> this isn't a matter of AD db housekeeping.  Now it's a less significant 
> matter of - do you bother cleaning out cache on your DNS servers, period?
> 
> All our DC's are DNS servers, but of the 60+, just two of them are employed 
> to service external name lookups.  Those two have a pretty monstrous cache, 
> with lots of empty zones.  Is it worth even thinking about, clear that cache 
> a time or two per year?  Or just let it build up knowing it has no 
> detrimental effect on anything?

-- 

Phil Brutsche
[email protected]

~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

Reply via email to