Integrating ISC-DHCP with/ Bind (and eventually Kea)

Ben Scott bscott at isc.org
Tue Dec 2 22:31:25 UTC 2025


On 12/2/25 15:18, Philip Prindeville via bind-users wrote:
>> On Dec 2, 2025, at 12:37 AM, Ondřej Surý <ondrej at isc.org> wrote:
>> Nope. Automatic empty zones are kind of special (both configuration- and code-wise).
> 
> Not sure I understand the difference between how “redfish-solutions.com” is created and “168.192.in-addr.arpa”.

   BIND's built-in automatic empty zones are fundamentally different 
from "normal" zones (those loaded from a zone database or transfer). 
The code handles them as a special case.  It's not just a zone file 
that's hard-coded into the program.

   If you really want to get into gory details, grep for and 
DNS_ZONEOPT_AUTOEMPTY and DNS_ZONESTATE_AUTOMATIC in the BIND source 
code.  But this is a level of detail you almost certainly do not need.  :-)

   The following article has more information about the auto zones 
(although it does not get into the implementation, just purpose and 
configuration):

	https://kb.isc.org/docs/aa-00800

   -- Ben

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