Solved

Internet down, fixed by rebooting Windows 2003 DNS server, What are the DNS issues?

Posted on 2013-10-25
3
359 Views
Last Modified: 2013-11-22
We have a domain that has 2 DNS servers that are Windows server 2003. One is the exchange server 2003 that also runs AD (DNS1) and the other DNS server is running DHCP along with AD (DNS2).  Every few days I have an issue with all the computers connecting to the internet. They can't ping to the websites by name.  The only fix is a reboot of the server. Even if I restart DNS services it does not clear the issue.  DNS2 is a virtual server with 2 Nics, one attached to 192.168.1.x subnet the other to 192.168.60.x subnet. It is providing DHCP for both.  I had to reboot DNS1 4 days ago to allow users to get on internet. Today I tried rebooting DNS1 and it did not fix the internet access issue, but a reboot of DNS2 did. Any thoughts on what is causing the issue. It has been sporadic over the last 3 months or so.
0
Comment
Question by:esmf23it
[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 Comments
 
LVL 19

Expert Comment

by:strivoli
ID: 39600328
A closer look at the Windows Application and/or System Logs (run eventvwr) might help. Search for any Warnings/Errors entries in both logs.
0
 
LVL 57

Accepted Solution

by:
Mike Kline earned 250 total points
ID: 39600448
I would personally not run a DC with two NICs.  I'd create a third box and make that a DNS server only.   Have that box be the one that goes out to the internet to resolve for addresses you don't host.

You would setup forwarders on your current AD/DNS servers to that new DNS server.  Then switch your DCs to single NICs/IP.

Thanks

Mike
0
 
LVL 22

Assisted Solution

by:Nick Rhode
Nick Rhode earned 250 total points
ID: 39600474
Those kinds of various issues are typically common from what I have seen due to having 2 NIC's on the server.  How is your DNS setup currently (pointing to itself as primary and something else secondary?).  Could be having an issue with DNS replication and the server could become what is known as the "island effect".
0

Featured Post

Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

Question has a verified solution.

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

A company’s centralized system that manages user data, security, and distributed resources is often a focus of criminal attention. Active Directory (AD) is no exception. In truth, it’s even more likely to be targeted due to the number of companies …
Auditing domain password hashes is a commonly overlooked but critical requirement to ensuring secure passwords practices are followed. Methods exist to extract hashes directly for a live domain however this article describes a process to extract u…
This tutorial will walk an individual through the process of transferring the five major, necessary Active Directory Roles, commonly referred to as the FSMO roles from a Windows Server 2008 domain controller to a Windows Server 2012 domain controlle…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…
Suggested Courses

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