NetBIOS in Cluster Networking
Updated: May 5, 2006
Applies To: Windows Server 2003 with SP1
In Windows Server 2003, the cluster service does not require NetBIOS. A basic principle of server security is to disable unneeded services. To determine whether to disable NetBIOS, consider the following:
Some services and applications other than the cluster service use NetBIOS. Review all the ways a clustered server functions before disabling NetBIOS on it.
With NetBIOS disabled, you will not be able to use the Browse function in Cluster Administrator when opening a connection to a cluster. Cluster Administrator uses NetBIOS to enumerate all clusters in a domain.
With NetBIOS disabled, Cluster Administrator does not work if a cluster name is specified. Cluster Administrator calls GetNodeClusterState, which uses the remote registry APIs that, in turn, use named pipes based on the virtual name.
If you want to disable NetBIOS on a clustered server, review the following items:
By default, when a cluster is configured, NetBIOS is enabled on the cluster IP Address resource. To disable NetBIOS on a new cluster, clear the check box on the parameters page of the Cluster IP Address resource property sheet.
When you create additional IP Address resources, to disable NetBIOS, clear the NetBIOS check box.
The information contained in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication.
This document is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AS TO THE INFORMATION IN THIS DOCUMENT.
Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may be reproduced, stored in or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of Microsoft Corporation.
Microsoft may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from Microsoft, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property.
2002. Microsoft Corporation. All rights reserved. Microsoft, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
The names of actual companies and products mentioned herein may be the trademarks of their respective owners.