Solved

Open DNS

Posted on 2006-06-25
8
241 Views
Last Modified: 2010-04-18
Hi All,

Im running Windows 2003 Server with SP2 (domain controller), and Exchange 2003 SP2(separate box) and file server that runs win 2003 SP2.

I went to www.dnsreport.com to do a test on my domain. In Open DNS row it says thas i have an open DNS server. I did what the recommended:

Open DNS.
In the console tree, right-click the applicable DNS server, then click Properties.
Click the Advanced tab.
In Server options, select the Disable recursion check box, and then click OK.

Once i applied the above changes o could not browse the internet.


Any ideas ?


Thanks
Chris
0
Comment
Question by:aucklandnz
[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
8 Comments
 
LVL 51

Expert Comment

by:Netman66
ID: 16980502
In DNS, on the properties of the server, make sure you are only servicing (listening) on the internal NIC.
Also, put the ISP DNS address on the Forwarder tab.

0
 
LVL 3

Author Comment

by:aucklandnz
ID: 16980594
i have done it and i still cant browse the net

thanks
0
 
LVL 51

Expert Comment

by:Netman66
ID: 16980675
Make sure every NIC inside the LAN only points to your DNS - including the server.

If there is a root zone "." then delete it and restart DNS (or the server).

0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 3

Author Comment

by:aucklandnz
ID: 16980716
There is no "." root zone. and when i run ipconfig /all on clients it says that clients point to my domain controller for dns

thanks
0
 
LVL 3

Author Comment

by:aucklandnz
ID: 16981270
any other suggestions ?
0
 
LVL 71

Accepted Solution

by:
Chris Dent earned 125 total points
ID: 16982269

Turn recursion back on and don't allow inbound traffic (from the Internet) on Port 53 (UDP) to your DNS Server.

If you disable Recursion for the entire server you will not be able to use Forwarders and you will not be able to resolve external names as you have taken away all it's means to do so.

An Open DNS server mans that others can use it for queries - it's not good practice to use your AD domains DNS Server as a public one - in many cases because Dynamic Updates will play merry hell with a public domain if left switched on.

Chris
0

Featured Post

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Question has a verified solution.

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

The HP utility "HP Lights-Out Online Configuration Utility for Windows Server 2003/2008" could be of great use when it comes to remotely configure a HP servers ILO WITHOUT rebooting the server. We would only need to create and run scripts using thi…
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…

623 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