Forwarders and performance
Joseph S D Yao
jsdy at cospo.osis.gov
Fri Oct 22 17:51:48 UTC 1999
> > Since the forwarders are receiving recursive queries,
> > they'll assume the burden of resolving the domain
> > names, whether or not the name is cached.
>
> So the bottom line is: "don't use forwarders if you don't need to!", am I
> right?
>
> Best regards,
> Daniel
Not at all. I guess it depends on your definition of "need".
Obviously, those behind a firewall must "forward only" to their bastion
host proxy. OTOH, if you have a large company with a lot of small
groups, even if all CAN directly query Internet DNS servers, it makes
sense to "forward first" to a central caching server which will cache
requests from the whole company. It makes more sense if company-wide
queries tend to be clustered, and more sense still if the outgoing
lines are slow.
--
Joe Yao jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support EMT-B
-----------------------------------------------------------------------
This message is not an official statement of COSPO policies.
More information about the bind-users
mailing list