Microsoft KB Archive/295165

= Extraneous DNS Queries Generate Network Overhead =

Article ID: 295165

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2

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This article was previously published under Q295165



SYMPTOMS
If a Domain Name System (DNS) client computer is connected to the DNS server by using an Integrated Services Digital Network (ISDN) link and the ISDN line is brought up in an unexpected manner, queries that should be resolved from the client's DNS cache may generate extraneous ISDN traffic. This problem is not specific to ISDN; the same queries are generated on a local area network (LAN). This problem originally occurred between two domain controllers (DNS client and DNS server) that were connected by using an ISDN link, when the Security section of the domain Group Policy on the DNS client domain controller was opened.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

  Date        Time        Version        Size    File name 8/2/2001   03:10p   5.0.2195.4041   502,032   Lsasrv.dll(56-bit) 5/29/2001  08:27a   5.0.2195.3649   107,520   Activeds.tlb 8/2/2001   03:50p   5.0.2195.4016   123,664   Adsldp.dll 8/2/2001   03:50p   5.0.2195.4016   130,832   Adsldpc.dll 8/2/2001   03:50p   5.0.2195.4016    62,736   Adsmsext.dll 8/2/2001   03:50p   5.0.2195.4003   355,088   Advapi32.dll 8/2/2001   03:50p   5.0.2195.3649    28,432   Dssec.dll 8/2/2001   03:50p   5.0.2195.3649   304,912   Gpedit.dll 8/2/2001   03:45p   5.0.2195.4041   519,440   Instlsa5.dll 8/2/2001   03:50p   5.0.2195.3951   143,120   Kdcsvc.dll 8/2/2001   03:09p   5.0.2195.4041   197,392   Kerberos.dll 6/26/2001  08:16p   5.0.2195.3781    69,456   Ksecdd.sys 8/2/2001   03:10p   5.0.2195.4041   501,520   Lsasrv.dll 8/2/2001   03:10p   5.0.2195.4041    33,552   Lsass.exe 6/27/2001  04:08p   5.0.2195.3789   112,128   Msv1_0.dll 8/2/2001   03:50p   5.0.2195.3868   909,072   Ntdsa.dll 8/2/2001   03:50p   5.0.2195.4005   382,224   Samsrv.dll 8/2/2001   03:50p   5.0.2195.3781   128,784   Scecli.dll 8/2/2001   03:50p   5.0.2195.3649   299,792   Scesrv.dll 8/2/2001   03:50p   5.0.2195.3838   123,664   Wldap32.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.



MORE INFORMATION
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 The Datacenter Program and Windows 2000 Datacenter Server Product

For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

You can view the extraneous DNS queries by watching for DNS frames with Network Monitor. The extraneous queries are of the following form, and are followed by a few DNS queries of type SOA:

DNS seq#:Std Qry for _ldap._tcp.Site- ._sites.dc_msdcs. .

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Additional query words: kbDirServices overhead bogus

Keywords: kbbug kbfix kbwin2000presp3fix kbdns kbqfe kbwin2000sp3fix kbnetwork kbdirservices kbhotfixserver KB295165

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