Why is it important for a DC to have only one NIC
Main Topics
Browse All Topics
Loading Advertisement...
Question
Exchange Crashing Every Tuesday - Friday AM
I have and Exchange 2000 that crashes every Tuesday and Friday AM between 0500-0530. This all started 3 weeks ago when I updated all my servers to SP3 and Exchange to SP3 with the post SP3 Hotfix. Microsoft has been on the case for 2 weeks but thus far has not been able to solve it.
The crashes always seem to start with event 7031:
The Microsoft Exchange Information Store service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 60000 milliseconds: Restart the service.
And quickly move to:
2102
Process MAD.EXE (PID=1736). All Domain Controller Servers in use are not responding:
DC1.mydomain.com
dc2.mydomain.com
DC3.mydomain.com
After that I get a bunch of DCOM errors (Every 30 sec) because the information store is down.
There are no events on my DC's or other servers which indicate network connectivity issues at the time it goes down. I installed all security patches 3 weeks ago (including the one that fixes MS’s latest HOLE). I have also scanned the C:\ of the Exchange server for viruses. As a last note we have had no computers (knock on wood) that were affected by the MSBLAST worm so I don’t believe that has anything to do with it.
Any ideas?
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Subscribe now for full access to Experts Exchange and get
Instant Access to this Solution
- Plus...
- 30 Day FREE access, no risk, no obligation
- Collaborate with the world's top tech experts
- Unlimited access to our exclusive solution database
- Never be left without tech help again
Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.
- "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
- "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
- "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.
See what Experts Exchange can do for you.
Got a question?
We've got the answer.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
Need individual assistance?
Our experts are ready to help.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Want to learn from the best?
Read articles from industry experts.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Working on a long term project?
Store your work and research.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
What Makes Experts Exchange Unique?
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Trusted by the world's most respected brands.
Faithfully serving IT professionals since 1996.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Free Tech Articles
-
WARNING: 5 Reasons why you should NEVER fix a computer for free.
It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
-
SCCM OSD Basic troubleshooting
SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
-
Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
-
Create a Win7 Gadget
This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
-
Outlook continually prompting for username and password
There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
-
Backup Exchange 2010 Information Store using Windows Backup
There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...
Cloud Class Webinars
- Avoiding Bugs in Microsoft Access
Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
- Top 10 Best New Features in Visio 2010
Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
- IT Consultant Business Secrets Revealed
Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
- Disaster Recovery and Business Continuity
Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
- Organize Your Visio Diagrams with Containers and Lists
Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
- How to Us Objects, Properties, Events and Methods in Microsoft Access
Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...
Join the Community
Give a Little. Get a Lot.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
Answers
Sorry for the delay:
For some services, (i.e. Exchange Server), the Microsoft Browser Service (a NetBios service) is used to determine network information (independent from any other statements of MS). The lack of the brwoser service is, that it can only bind to one single NIC at a time. Within a network, you have usually one Master Browser service, which is used to collect information an to support other machines. Whenever the browser services binds to a netcard outside your internal network, the browser service of other machines can not find this machine until the browser service binds back (as possible). Secondary, a DC usually (but need not) hosts the Master Brwoser service, which is then inaccessable, if the service binds to another card. You can determine this issue by "redirector" errors within your event log.
All these cases forces some malfunctions of other services within your network. They are usually temporary, but boring.
If you can not avoid a second NIC in your DC, disable NetBios over TCP/IP on this interface, if possible. This avoids that the browser service can bind to this NIC. As long as this interface is only for internet access, its not a problem. If this interface is a internal routing interface between to internal subnets, you will have a lot of temporary problems, if there is only one DC on one side of the network.
3 Ways to Join
Business Accounts
- Perfect for organizations
- Multiple users
- Save over 36%
- Create a Business Account
Answer for Membership
- Earn free access
- Showcase your knowledge
- No credit card required
- Sign Up to Answer
Loading Advertisement...
by: BembiPosted on 2003-08-15 at 12:01:16ID: 9161892
Some ideas, some may be independend from each other.
- W2K Service Pack 4
- Check, if there is any other service, which will run between 5:00 and 5:30, i.e. Backup software
- have a look, when your online defragmenter runs (storage maintanance: tab "database" of the store properties")
be sure, that this service do not conflict with backup software or any others like virus scan.
- have a look at any anti virus software (i.e. Group Shield) and any sheduled task at this time
- check, if you hav any other issues, which will fall into your time scope (replication over dial-up / WAN connections)
As you get domain controller errors (All Domain Controller Servers in use are not responding):
Install the windows support tools from the CD oder better download the corresponding tools for the Servcie pack 3 from MS.
type browstat -status to see, where the master browser is located and maybe on which NIC the browser service is bound. If the master browser service is bound to an external NIC or ISDN card, exchange produces messages, that the domain controller can not be found. This is usually not a big problem, nevertheless is slows down the system and produces errors.
Be sure, that the browser servcie is bound to an internal NIC. The master browser service should be hosted on a domain controler (and a DC should allways have only one NIC!!). As the master browser server is able to float, it may be a good idea, to force the service to uise the DC and not any other machine. You can download the X_Setup from www.xteq.com (like Tweak_UI), there you have an otion to force a server to be the master browser or to deny a server to be it.
Another option to avoid the external binding of the browser service to disable NetBios over TCP/IP (configuration of TCP/IP - WINS on your netcard) for all external NICs. The browser service will only bind to NetBios enabled interfaces.
I've never seen, that the IS crashes when your DC errors arises, but I had other problems and a lot of errors (MAD.EXE and others) as well as DCOM errors, as long as we hadn't fixed the master browser issue.