DNS zone to host only certain records & forward other requests to other DNS Servers.

[Manjunath H N]

I am looking for a solution in DNS on name resolution.

I thought my original mail was quite ambiguous, I will explain in
detail.

The end users need to access www.webserver.partner.com, I can create a
Primary zone partner.com on my DNS server, but this server has many
links which point to other Public IP's, when users click on these links,
the browser says page cannot be found, because the clients will try to
resolve this using our DNS server.

If I put a zone called webserver.partner.com & create a record for that
Web Server, will all DNS queries for partner.com also be passed to our
Internal DNS server which is hosting that zone.

In short I want www.webserver.partner.com to be resolved by our Internal
DNS server & all other DNS queries to partner.com to be resolved by
External DNS. Is this possible ?

Thanks 
Manjunath H N | Project Manager | M P H A S I S Architecting Value | IT
SERVICES
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-----Original Message-----
From: Merton Campbell Crockett [mailto:m.c.crockett at adelphia.net] 
Sent: Wednesday, August 09, 2006 7:38 PM
To: Manjunath H N
Cc: bind-users at isc.org
Subject: Re: DNS zone to host only certain records & forward other
requests to other DNS Servers.

It's unclear whether you are asking a question about name resolution  
or network routing.  Is a different IP addresses used for  
www.partner.com when it is accessed via the private network connection?

If it is, one approach would be to define on your primary, internal  
master name server a zone file for www.partner.com that contains an A  
record for the IP address used to access the system over the private  
network connection.  Have all of your internal name servers pull this  
zone from the master name server.

If not, you will need to define host routes in your routers to route  
the traffic over the private network connection.


On 09 Aug 2006, at 24:48 , Manjunath H N wrote:

> Hi,
>
> We have a dedicated Network connectivity with one of our clients. All
> the traffic between the client & us is through this dedicated link. We
> access a few of their Web Servers inside our network & the request  
> goes
> via Internet as they are publically available Web servers.
>
> How do I route these specific IP's to go via the dedicated N/W
> connectivity rather than on the internet.
>
> We have a split brain DNS, so I configured the client domain zone name
> on our internal DNS servers, & created records for the Web servers,  
> but
> the problem in this is, all requests with the client domain name
> created, it tries to search on our internal DNS & the request  
> fails. How
> can I achieve this using DNS, I want this to be a permanent solution
> also.
>
> Any pointers to this is highly appreciated.
>
> In this scenario even the mail flow to that particular domain had a
> problem, for which I created a separate Mailer Table on our MTA for  
> this
> domain & the mail issue is solved.
>
> TIA
> Manjunath H N
>
>
>

Merton Campbell Crockett
m.c.crockett at adelphia.net