Name servers (NS) would be your domain controllers as normal.

Simon.

From: David Lum [mailto:[email protected]]
Sent: 22 February 2012 21:08
To: NT System Admin Issues
Subject: RE: DNS-y

Thanks guys.

Do I need to do anything with the NS entry in these zones I created, or just 
leave as default?

Dave

From: Simon Butler 
[mailto:[email protected]]<mailto:[mailto:[email protected]]>
Sent: Wednesday, February 22, 2012 11:11 AM
To: NT System Admin Issues
Subject: RE: DNS-y

You want to do a single host name split DNS.
Create a zone for each host name in your DNS.
Then create a blank "A record" in each zone that points to the IP address. 
Doesn't affect the rest of the remote domain for DNS.
http://exchange.sembee.info/network/split-dns.asp

Simon.


--
Simon Butler
MVP: Exchange, MCSE
Sembee Ltd.

e: [email protected]<mailto:[email protected]>
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w: http://blog.sembee.co.uk/

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From: ed ziots [mailto:[email protected]]<mailto:[mailto:[email protected]]>
Sent: 22 February 2012 18:33
To: NT System Admin Issues
Subject: RE: DNS-y

Split-brain DNS is not always a bad idea, ( what is internal should be internal 
and what is DMZ/External should be external)

You probably can do one of two things for this.

I am assuming that you don't own the DNS Server that is authoriative for the 
zone ( thisclient.com). I agree you could set up a thisclient.com dns zone on a 
dns server you own within your site ( as long as the client is using that dns 
server for resolving) if not then you are going to have to access the DNS 
server that is authoritative for the zone, and make the A records there.

I doubt you will have luck allowing a zone transfer from the master across the 
VPN pipe if the primary DNS server is on the other side of the VPN tunnel ( 
especially if you have the tunnel locked down, which you should)

Z

Edward E. Ziots
Security Engineer
CISSP,Security +,Network+


> From: [email protected]<mailto:[email protected]>
> Date: Wed, 22 Feb 2012 12:18:05 -0500
> Subject: Re: DNS-y
> To: 
> [email protected]<mailto:[email protected]>
>
> On Wed, Feb 22, 2012 at 10:43 AM, David Lum 
> <[email protected]<mailto:[email protected]>> wrote:
> > We have a VPN tunnel to a client, and we've been asked to make some DNS
> > entries for Thisclient.com addresses and frankly, I don't know how to do it
> > or even how to Google for it. They gave us a list of IP's that need to have
> > entries.
>
> You can tell your DNS server to claim authority for whatever you
> want, and as long as your DNS clients are using that DNS server for
> all lookups, you'll get what you told it to say. So claim authority
> for new zones, named <host1.thisclient.com>, <host2.thisclient.com>,
> etc., and put in the A records at the origin level. Any time their IP
> addresses change, they'll have to tell you.
>
> > I could do DNS forwarding but that would disable us being able to get to
> > thisclient.com's external websites, wouldn't it?
>
> Yup.
>
> (Aside: This is yet another example of why split DNS is a bad idea.
> Too bad for you, your client doesn't know that.)
>
> -- Ben
>
> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~
> ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
>
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