We value your feedback.
Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!
COURSE of the MONTH
12 days, 11 hours left to enrollBecome a Premium Member and unlock a new, free course in leading technologies each month.
Solved
SBs box detecting another SBS box and shutting services down.
Posted on 2011-02-25
SBS 2003 server detects another SBS server and throws a paddy, but there isnt another SBS server on the network.
Does anyone know how it detects other SBS servers and how i can replicate it so I can locate the 'other SBS server' myself?
Details:
SBS 2003, SP2. Single NIC, All FMSO roles, DHCP, DNS.
192.168.1.x / 24 network behind a Netgear internet router.
Eventid 1011:
Multiple domain controllers running Windows Server 2003 for Small Business Server have been detected in your domain. To prevent this computer from shutting down in the future, you must remove all but one of these from the domain.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Does anyone know how it detects other SBS servers and how i can replicate it so I can locate the 'other SBS server' myself?
Details:
SBS 2003, SP2. Single NIC, All FMSO roles, DHCP, DNS.
192.168.1.x / 24 network behind a Netgear internet router.
Eventid 1011:
Multiple domain controllers running Windows Server 2003 for Small Business Server have been detected in your domain. To prevent this computer from shutting down in the future, you must remove all but one of these from the domain.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
[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
-
2
4 Comments
Have you or anyone in some point in the past tried to add a SBS into the network?
In your case you will need to use Ntdsutil to remove orphan DC. Make sure you remove the right one.
http://www.pcreview.co.uk/forums/manually-removing-orphaned-child-domain-and-dc-issue-t2371308.html
http://support.microsoft.com/kb/555846
In your case you will need to use Ntdsutil to remove orphan DC. Make sure you remove the right one.
http://www.pcreview.co.uk/forums/manually-removing-orphaned-child-domain-and-dc-issue-t2371308.html
http://support.microsoft.com/kb/555846
Active today
The error is a generic one actually generated by the licensing service. All it *really* means (despite what it says) is taht your server is no longer in licensing compliance. This usually means that one of the required roles (FSMO, GC) were transferred or lost from the SBS server. your standard AD tools )DCdiag, SBS BPA) will help you find out which role(s) are missing and resolve the situation.
-Cliff
-Cliff
as advised above there is and never has been another SBS on the network, and ALL FMSO roles were present and correct. Thanks for the help though.
After a bit of digging and testing I've worked it out.
It seems that the SBS checks any domains listed in it's DNS cache to see if it has any competition on the network.
This is quite clever as it means that if two systems reside on the same network and make even a single reference to each other it will be listed i the DNS cache and will be checked. On checking it will see ports open and be able to work out who the PDC is. If it's behind a router (eg on the internet) these ports will be closed and the server is happy it cannot see the other server.
In this case, some idiot had run Spybot on the server and had not been aware this adds a HUGE number of domains to the HOSTS file and points them all to 127.0.01.
While this is a basic way of stopping users/malware from accessing the sites, it also mean the server did it's usual checks on these domains listed in it's cache and ended up seeing itself, thinking it had competition and throwing a paddy..... (Proof that computers really are dumb...)
Deleted entries from hosts file and cleared cache and all is now fine. No other SBS boxes have been seen and the server is behaving itself again...Yey!
After a bit of digging and testing I've worked it out.
It seems that the SBS checks any domains listed in it's DNS cache to see if it has any competition on the network.
This is quite clever as it means that if two systems reside on the same network and make even a single reference to each other it will be listed i the DNS cache and will be checked. On checking it will see ports open and be able to work out who the PDC is. If it's behind a router (eg on the internet) these ports will be closed and the server is happy it cannot see the other server.
In this case, some idiot had run Spybot on the server and had not been aware this adds a HUGE number of domains to the HOSTS file and points them all to 127.0.01.
While this is a basic way of stopping users/malware from accessing the sites, it also mean the server did it's usual checks on these domains listed in it's cache and ended up seeing itself, thinking it had competition and throwing a paddy..... (Proof that computers really are dumb...)
Deleted entries from hosts file and cleared cache and all is now fine. No other SBS boxes have been seen and the server is behaving itself again...Yey!
Featured Post
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
The SBS 2011 release date (RTM) is supposed to be around Christmas, 2011. This article is a compilation of my notes -- things I have learned first hand. The items are in a rather random order, but I think this list covers most of what is new and d…
A quick step-by-step overview of installing and configuring Carbonite Server Backup.
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…
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB.
How Percona can help
Percona can help you determine if Percona Server for MongoDB is the right solution for …
Suggested Courses
Course of the Month12 days, 11 hours left to enroll
777 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.