nanog mailing list archives

Re: Active Directory requires Microsoft DNS?


From: Daniel <accesss801 () gmail com>
Date: Fri, 24 Sep 2010 11:49:35 -0600

AD works just fine with BIND as long as dynamic updates are allowed to the
AD zone's from the DC's. Exchange 2007 by default also wants to be able to
dynamically register it's record's but it can be disabled.

All you need to do is configure the DNS server's in the IP settings and
restart the net logon service on the DC's and watch all the records get
populated into the zone on BIND. That's all you need to do to migrate from
MS DNS to BIND as well.

The only issue I ran into was old records not being deleted properly in BIND
(removing a DC) so you had to manually delete them from the zone but it
wasn't a big deal since there's not many records and easy to identify.

If your worried about all the records not being registered properly you can
look at a local file on the DC and it will list the records that should be
in DNS.

http://support.microsoft.com/kb/816587

There is also a utility you can run on the DC's that will verify all the
records that should be in DNS and report any errors. I don't recall for sure
but I think it was netdiag.

http://support.microsoft.com/kb/321708

-Dan

On Fri, Sep 24, 2010 at 11:17 AM, Darren Pilgrim <nanog () bitfreak org> wrote:

Tom Mikelson wrote:

Presently our organization utilizes BIND for DNS services, with the
Networking team administering.  We are now being told by the Systems team
that they will be responsible for DNS services and that it will be changed
over to the Microsoft DNS service run on domain controllers.  The reason
given is that the Active Directory implementation requires the Microsoft
DNS
service and dynamic DNS.


Bunk.  At work we have a network of ~1500 computers with over 600 of them
running Windows.  Our nameservers are all BIND, which have dynamic DNS
enabled for updates sent from our 2003 and 2008R2 DCs.  The DCs have no
problem creating, updating and deleting the various RR's they use to publish
the domain.  The Systems team folks will see errors/warnings in the Windows
logs because the Windows machines are unable to set up secure connections to
the nameservers and due to an implementation difference between what BIND
accepts and what Microsoft's OSes send; but in practice these seem to be
little more than noise.




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