question about dns query distribution
Barry S. Finkel
bsfinkel at att.net
Fri Feb 8 16:39:28 UTC 2013
> HI Lawrence,
>
> We have recursive / caching name server for our Broadband internet
> services. And we have 60-40 traffic ratio. I mean 60 % queries comes
> on primary and 40% on secondary.
>
> Why primary does not getting 100% ?
>
> Is there any way to do it ? or what is the reason behind it that both
> servers' having queries ?
>
> BR
> Ben
In DNS there is no concept of a "primary" and "secondary" name server.
All of the name servers listed in the NS records for a zone are equal,
and any can be used to handle a DNS query (assuming, of course, that
each server has the zone properly configured). BIND will use the server
that has the shortest response time, but I do not know what other DNS
implementations do.
--Barry Finkel
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