There's a standard that says *all* zones beneath the root should be
delegated hierarchically. It's a very broad rule that doesn't depend on
what you happen to be "loading" at any particular time on any particular
server.
It may seem overkill now, if all of your nameservers slave all of your
zones, but what if some day you want to set up a slave of example.com
that does *not* happen to also be a slave of test.example.com? In the
absence of those delegation records in its slave copy of the zone, it
won't know that test.example.com exists. If any client queries such a
nameserver for a test.example.com name, it'll get a "no such name"
(NXDOMAIN) response.
It's good form, and a good habit to get into, to always delegate zones,
even if the delegated zone is slaved on all of your (current set of)
nameservers. Give yourself some flexibility and scalability for the future.
- Kevin
Todd Snyder wrote:
Good day,
Looking through configuration of one of my servers (ns01.local), I have
example.com loading, and test.example.com loading.
In example.com, someone has delegated test.example.com back to the
server:
test.example.com IN NS ns01.local
Since I am loading test.example.com specifically, that delegation
appears redundant. Are there cases where that delegation is required?
Is there a standard that says I should do that for all zones I'm loading
that are subzones of another zone I'm loading? Is this just an oddball
configuration that should be cleaned up?
Thanks,
Todd.
---------------------------------------------------------------------
This transmission (including any attachments) may contain confidential
information, privileged material (including material protected by the
solicitor-client or other applicable privileges), or constitute non-public
information. Any use of this information by anyone other than the intended
recipient is prohibited. If you have received this transmission in error,
please immediately reply to the sender and delete this information from your
system. Use, dissemination, distribution, or reproduction of this transmission
by unintended recipients is not authorized and may be unlawful.
_______________________________________________
bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users
_______________________________________________
bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users
