DNS Server service does not resolve some external DNS names after it works for a while in Windows Server 2008 R2

Article ID: 2508835 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You install the DNS Server role on a computer that is running Windows Server 2008 R2.
  • You configure the DNS server to connect to a public DNS server on the Internet for name resolution.
  • You do not configure any forwarders on the DNS server.
In this scenario, the DNS Server service does not resolve some external DNS names after it works for a while. Therefore, you cannot access some applications or some websites that rely on these external DNS names.

Notes
  • To resolve this issue, you have to restart the DNS Server service or clear the DNS cache.
  • This issue usually occurs if you use the DNS Cache Locking feature in Windows Server 2008 R2.
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Cause

This issue occurs because the DNS Server service cannot correctly handle the situation in which the glue record is expired or removed.
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Resolution

Hotfix information

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932
(http://support.microsoft.com/kb/976932/ )
Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.1.760 0 . 20xxxWindows Server 2008 R2RTMLDR
    6.1.760 1 . 21xxxWindows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x64-based versions of Windows Server 2008 R2
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File nameFile versionFile sizeDateTimePlatform
Cache.dnsNot applicable3,19810-Jun-200920:31Not applicable
Dns.exe6.1.7600.20930696,32022-Mar-201105:15x64
Dnsserver.events.xmlNot applicable60910-Jun-200920:31Not applicable
Cache.dnsNot applicable3,19805-Nov-201001:52Not applicable
Dns.exe6.1.7601.21689696,83222-Mar-201105:08x64
Dnsserver.events.xmlNot applicable60905-Nov-201001:52Not applicable
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Workaround

Workaround for Windows Server 2008 R2

To work around this issue, restart the DNS Server service. Or, type the following command at a command prompt, and then press ENTER to clear the DNS cache:
dnscmd /clearcache
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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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More information

For more information about the DNS Cache Locking feature, visit the following TechNet website:
General information about the DNS Cache Locking feature
(http://technet.microsoft.com/en-us/library/ee683892(WS.10).aspx)
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684
(http://support.microsoft.com/kb/824684/ )
Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2
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File nameAmd64_626603afd074f82a85a123a8284b1a67_31bf3856ad364e35_6.1.7601.21689_none_e28975fd1d5ee264.manifest
File versionNot applicable
File size710
Date (UTC)23-Mar-2011
Time (UTC)07:57
File nameAmd64_eb10c5926a17acb934a77496c4381161_31bf3856ad364e35_6.1.7600.20930_none_3853ac3a142a00de.manifest
File versionNot applicable
File size710
Date (UTC)23-Mar-2011
Time (UTC)07:57
File nameAmd64_microsoft-windows-dns-server-service_31bf3856ad364e35_6.1.7600.20930_none_aab58b90093f26d7.manifest
File versionNot applicable
File size158,131
Date (UTC)22-Mar-2011
Time (UTC)06:06
File nameAmd64_microsoft-windows-dns-server-service_31bf3856ad364e35_6.1.7601.21689_none_ac6ed9ae06860560.manifest
File versionNot applicable
File size158,131
Date (UTC)22-Mar-2011
Time (UTC)05:42
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Properties

Article ID: 2508835 - Last Review: December 27, 2012 - Revision: 3.0
Applies to
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Foundation
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2508835
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