Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Root Hints DNS

Posted on 2010-09-14
8
Medium Priority
?
486 Views
Last Modified: 2012-05-10
Hi,

My question is about dns. I am not good at dns infrasturcture and i am hoping somebody can get me understand it.

here is my environmet.  I have DOMAIN A.com which is forest root domain and DOMAIN B.com and DOMAIN C.DOMAIN B.com.

I want to use forwarders for external name resolution. i have few DNS servers i am going to forward request.

I am going to forward request from Domain B and DOMAIN C. DOMAIN B.com domain using forwarder.

my question is what i should be doing with root hints . Do i have to modify them and where. I am also planning to use forwarder in forest root domain ( DOMAIN A ) as well.

or i dont need to do anything with root hints as i am already using forwarders.

for name resolution between internal domain , i am going to use conditional forwarders.

Basically , i realy dont know what i should be doing with root hints

Thanks

Fiyona

 
0
Comment
Question by:toronto2456
[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
8 Comments
 
LVL 31

Expert Comment

by:Justin Owens
ID: 33673295
Good definition of root hints: http://www.ucertify.com/article/what-are-root-hints.html

Good overview of recursion and root hints: http://www.windowsnetworking.com/articles_tutorials/Understanding-DNS-Recursion.html

Basically, you need to use root hints when you have different levels of your DNS structure, as you have mentioned you do.  Because of the way AD works, I would suggest keeping your DNS AD integrated.  Have your downstream DNS servers point to your upstream DNS servers.  Your top level would use root hints to know about non-root level entries.

Are domain B and domain A in the same forest?
0
 
LVL 70

Expert Comment

by:KCTS
ID: 33673364
0
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 33674750
If you use DNS Forwarders Root Hints are NOT used so if you are using forwarders don't even worry about Root Hints
0
Does Powershell have you tied up in knots?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

 
LVL 31

Expert Comment

by:Justin Owens
ID: 33674924
Correct... Use one or the other, but not both.
0
 
LVL 57

Expert Comment

by:Mike Kline
ID: 33675184
You have all the right answers...jwanted to add in a good post that Chris Dent had explaining the query process in detail
http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/2003_Server/Q_21558360.html
 
Thanks
Mike
0
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 33675214
Information on DNS Forwarders and why you should use them instead of Root Hints.

http://technet.microsoft.com/en-us/library/cc782142(WS.10).aspx
0
 

Author Comment

by:toronto2456
ID: 33675790
Domain A and Domain B are in the same forest, Domain A being the forest root.

So if i use forwarder for external name resolution for all domains and conditional forwarders between domains , then i don't need to play with root hint in the forest root domain neither.

as far as i know if forwarder is used , root is not used. But do i need to delete the root hints anyway especially in forest root domain. I have seen environment, they have some custom entries in root hints.

Thanks  
0
 
LVL 59

Accepted Solution

by:
Darius Ghassem earned 2000 total points
ID: 33676030
No, you don't have to delete the root hints. You can if you want to but they might come in handy on a troubleshooting purpose only
0

Featured Post

Get your Disaster Recovery as a Service basics

Disaster Recovery as a Service is one go-to solution that revolutionizes DR planning. Implementing DRaaS could be an efficient process, easily accessible to non-DR experts. Learn about monitoring, testing, executing failovers and failbacks to ensure a "healthy" DR environment.

Question has a verified solution.

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

I was prompted to write this article after the recent World-Wide Ransomware outbreak. For years now, System Administrators around the world have used the excuse of "Waiting a Bit" before applying Security Patch Updates. This type of reasoning to me …
In the absence of a fully-fledged GPO Management product like AGPM, the script in this article will provide you with a simple way to watch the domain (or a select OU) for GPOs changes and automatically take backups when policies are added, removed o…
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
Suggested Courses

610 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