root hints operation

Darcy Kevin (FCA) kevin.darcy at
Tue Nov 17 23:10:40 UTC 2015

No default route to Internet, internal-root architecture; when you think this through, it's pretty obvious that the ability to explicitly specify "hints" is a mandatory feature of any enterprise-strength DNS product.

					- Kevin

-----Original Message-----
From: bind-users-bounces at [mailto:bind-users-bounces at] On Behalf Of Joseph S D Yao
Sent: Tuesday, November 17, 2015 10:25 AM
To: Ray Bellis
Cc: bind-users at
Subject: Re: root hints operation

On 2015-11-17 04:21, Ray Bellis wrote:
> On 17/11/2015 02:09, Grant Taylor wrote:
>> On 11/16/2015 06:56 PM, /dev/rob0 wrote:
>>> You either specify a hints file to use, or use the compiled-in root 
>>> hints.
>> Interesting.  I was not aware that it was an exclusive or type 
>> situation.
> It's important that they're exclusive - it would be very much harder 
> to build an isolated test bed (with "fake" root hints) if BIND 
> insisted on always trying to reach all of the compiled-in root hints.

Or a real root hints file that differed from the compiled-in version, either in the current case (where there is a lot of overlap so it actually wouldn't matter that much) or for a private internet (lower-case 'i') with no overlap.

Joe Yao
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