Getting different name resolution for frommaster and slave BIND

Lightner, Jeff JLightner at
Wed May 25 14:26:04 UTC 2011

Your nitpick is warrantless - it should have been obvious from context
that I was speaking of the general purpose of these name servers from
our perspective - not implying they were somehow authoritative for
recursive queries.    If it makes you feel better I'll call them my
"pedantic" and "irrelevant" servers rather than my "master" and "slave".

-----Original Message-----
From: at
[ at] On Behalf
Of /dev/rob0
Sent: Tuesday, May 24, 2011 6:04 PM
To: bind-users at
Subject: Re: Getting different name resolution for
frommaster and slave BIND

On Tue, May 24, 2011 at 02:28:42PM -0400, Lightner, Jeff wrote:
> Is anyone else seeing odd results with  My BIND
> 9 master and slave are getting different results.  If I go out
> to other sites such as or they also get
> different results from each other and different from what my
> master and slave are reporting.

A nitpick here: the terms "master" and "slave" only apply in regards 
to authoritative name service. When you are doing recursion, this 
distinction is irrelevant.

And no, this is not odd at all. This is typical for many or most busy 
domains: they do a rudimentary form of load balancing through DNS 
results. Nothing interesting here.
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