Re: Help needed with setting up a secondary DNS server


"BreadSlicer" <BreadSlicer@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:0D376E57-A157-48DB-A670-CB5A8722D078@xxxxxxxxxxxxxxxx
I don't know how we can possibly know the answer.
In addition, there may be a confusion of terms here. Are you setting up a
secondary zone, or a DNS server to be used as an Alternate DNS?

There's a difference? ;)

Yes. And although you may be kidding it is commonly misunderstood
and even more commonly mixed up by people who tend to use the
words incorrectly and then act on the misused terms as if they were
correct.

Primary and Secondary are technical terms on the servers, for the type
of zone. Preferred and alternate are client side concepts.


Seriously though, I don't want to setup a secondary zone (I'm not sure why
I
would want that anyway...but I digress)

You want it for fault tolerant name resoluton and/or performance
improvements.

I just want the second server to be an alternate DNS.

You want an additional server for the reasons given in answer to the
previous
item -- you want it to be a secondary because internal clients cannot
reliably
bypass the internal zone AND for those times when the Primary is down.

(You might actually want it to be a an AD Integrated DNS instead of a
Secondary IF you have two DCs - -but the key is you want a second
DNS with a full copy of the zone.)

A lot of users try to interchange the terms Primary with Preferred and
Secondary with Alternate.
Preferred and Alternate would be the DNS server order used in TCP/IP
settings. Primary and Secondary are types of zones actually being hosted
by
DNS servers, and do not have any reflection on the order that they are
used.

IF you have DCs with AD integrated zones, those zones are replicated to
at
the minimum all DCs in the domain, and you would therefore not be able to
have any Secondary zones of any of these zones on other DCs in the
domain.

The picture is definitely starting to become clearer.

Additional DNS-DCs (AD Integrated) serve the same purpose as a traditional
Secondary, but does so with better security, better replication, and
improvements
for dynamic registration.


.

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