?
Solved

BIND DNS question - only forward certain dns requests ?

Posted on 2007-03-27
6
Medium Priority
?
661 Views
Last Modified: 2013-12-23
Hi,

We are implementing a fail-over / load balancing solution based on Radware AppDirector.

The Radware AppDirector will redirect the users by acting as a DNS server and "feeding" the visitor the correct DNS record.

Problem: we want the Radware to only handle dns for two dns records ( www.domain.com and extranet.domain.com ), BUT NOT FOR THE OTHER 30 dns records in our public dns zone.

I know Windows 2003 has something called "conditional forwarding".
How can we solve this using BIND ? Forwarding only allows us to forward a complete subdomain ? Other possibilities ???

Thanks,
Joachim
0
Comment
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 71

Expert Comment

by:Chris Dent
ID: 18798412

You could add a local zone to BIND as domain.com and add the two records you require beneath it. It wouldn't forward requests for any other records within domain.com.

Chris
0
 
LVL 3

Author Comment

by:joachim.claeys@teleatlas.com
ID: 18798417
Hi Chris,

It's the Radware that will be handling dns requests for these two records.

The other records that will be managed by BIND.

The Radware has very basic dns capabilities ( no zone creation, ... )

J.
0
 
LVL 71

Expert Comment

by:Chris Dent
ID: 18798456

Hmm...

It's a pain, but you could fill the Hosts file with the other 30.

Unfortunately conditional forwarders in BIND are also a type of zone. e.g.:

zone "somedomain.com" IN
{
      type forward;
      forwarders {a.b.c.d; w.x.y.z;};
};

Chris
0
Turn your laptop into a mobile console!

The CV211 Laptop USB Console Adapter provides a direct Laptop-to-Computer connection for fast and easy remote desktop access with no software to install.

 
LVL 5

Accepted Solution

by:
suggestionstick earned 1500 total points
ID: 18798544
Hi


Have you considered making a sub domain, and delegating DNS for that sub domain to  Radware?

so Bind will handle example.com
and will pass subdomain.example.com to Radware for load balancing.

Just a thought.
 




0
 
LVL 3

Author Comment

by:joachim.claeys@teleatlas.com
ID: 18798555
Yes. I was considering this as well, but it just doesn't feel like the right way to go. Nevertheless, if this is the only low-maintenance solution ...

I was just wondering if this has any disadvantages ( search engine bots, ... ? )

Thanks,
Joachim.
0
 
LVL 71

Expert Comment

by:Chris Dent
ID: 18798680

It depends what the server does. search engines and bots can't use a Hosts file, and from what you've written I hadn't imagined the server hosting public DNS services.

Chris
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
This article will inform Clients about common and important expectations from the freelancers (Experts) who are looking at your Gig.
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question