Solved

DNS Forwarders vs root hint

Posted on 2014-10-16
6
211 Views
Last Modified: 2014-10-18
I have two name servers from my ISP set as forwarders on my PDC.
Is it best practices to use these NS or clear them out and just use root hints?
Would 8.8.8.8 offer any benefit?

My system event log returned ID 10009 that DCOM as unable to communicate w/ each of the ISP Name servers.
No network problems, however. (isolated I guess).
0
Comment
Question by:ShawnGray
  • 2
  • 2
  • 2
6 Comments
 
LVL 10

Accepted Solution

by:
Senthil Kumar earned 500 total points
ID: 40384925
Hi,
DNS forwarders are required in DC to resolve the external host names when the client browsing the websites. Otherwise you may need to have external DNS as secondary DNS in all your clients to browse with out going through DC for name resolution.
0
 

Author Closing Comment

by:ShawnGray
ID: 40384979
Thank you
0
 
LVL 39

Expert Comment

by:footech
ID: 40385601
Unfortunately Senthil's answer is incorrect.  DNS forwarders are not required.  You can use root hints as well.  The answer of which to use can really only be determined by testing the responsiveness of DNS servers to your queries.  You may see some improvement from using certain DNS servers as forwarders if they respond quickly, but they are not required.

Check out
https://www.grc.com/dns/benchmark.htm
http://code.google.com/p/namebench/
0
Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

 

Author Comment

by:ShawnGray
ID: 40386659
Thank you footech.
0
 
LVL 10

Expert Comment

by:Senthil Kumar
ID: 40387184
Yes footech is right provided you check mark the option under Forwarders as "Use root hints if no forwarders are available" if forwarders are used.
0
 
LVL 39

Expert Comment

by:footech
ID: 40388630
You can just use root hints if you like.  You don't have to use forwarders at all, which means that the option "Use root hints if no forwarders are available" is not required either.  That's just a backup when you do have forwarders configured.
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

One of the most often confused topics in the area DNS is the idea of GLUE records. Specifically, what they are, when they are needed, when they are provided, and how they are created. First, WHAT IS GLUE? To understand GLUE, you must first under…
There have been a lot of times when we have seen the need to enter a large number of DNS entries in a forward lookup zone. The standard procedure would be to launch the DNS Manager console, create the Zone and start adding new hosts using the New…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …

706 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now