[dns-operations] Change to BIND minimal-responses config option

Mukund Sivaraman muks at isc.org
Sat Apr 22 02:39:32 UTC 2017

On Sat, Apr 22, 2017 at 08:05:13AM +0530, Mukund Sivaraman wrote:
> Hi Duane
> On Fri, Apr 21, 2017 at 08:44:52PM +0000, Wessels, Duane wrote:
> > Hi Mukund,
> > 
> > Thanks for the heads-up.  
> > 
> > I wonder how well we understand the consequences that
> > minimal-responses has on cached NS records?  If my authoritative
> > servers for a second-level domain like example.com uses
> > minimal-responses, then will a recursive cache ever receive the NS
> > RRset from the authoritative servers?  Or will it only have the RRset
> > from the parent (com), which might also have different TTLs?
> It will not receive them unless it queries for them.

I mean to say that the parent NS records as part of the delegation
answer will not be overwritten in this case (unless the resolver queries
the child zone explictly for NS).

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