caching-only name server

Alan Clegg alan at clegg.com
Fri Feb 20 18:24:12 UTC 2015


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On 2/20/15 12:59 PM, Vijay Viswanathan wrote:
> sorry I didn't understand, with the snip i have without the listen 
> directive, i should be able to run BIND (named) as recursion only
> server installed in all client machines to speed up their
> browsing/DNS lookup?

You _could_ run this on every client machine, but if you do, you lose
the function of caching between clients.

Consider the case that your clients all have a need to go to xyz.com

If you have each client running its own copy of BIND, you have every
client doing that lookup and waiting for the response, etc.

If you have a couple of centralized servers running BIND, only the
first client to lookup xyz.com (against each server) has to wait for
the response, at which time the response is cached for the other clients.

Honestly, there are too many variables for us to be able to tell you
which mechanism works best in your specific case.

AlanC

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