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Symptoms
The DNS Server service on a DNS server that is running Windows Server 2003, Windows Server 2008 or Windows Server 2008 R2 intermittently does not respond to DNS queries from client computers. When this issue occurs, the DNS server stops responding.
Cause
This issue occurs because the DNS Server service enters an infinite loop when the DNS Server service generates a DNS response. The infinite loop occurs if the DNS Server service encounters an offset that points to the previous location that the DNS Server service was checking.
Resolution
Hotfix information
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. Mainstream support for Windows Server 2003 ended on July 13, 2010. A hotfix for this issue exists but is not publicly available. Please review the Microsoft Support Lifecycle policy.
Extended Support
The Extended Support phase follows Mainstream Support for Business and Developer products. supported service pack level, Extended Support includes:
At the-
Paid support
-
Security update support at no additional cost
-
Non-security related hotfix support requires a separate Extended Hotfix Support Agreement to be purchased (per-fix fees also apply)
Please note:
-
Microsoft will not accept requests for warranty support, design changes, or new features during the Extended Support phase
-
Extended Support is not available for Consumer, Hardware, or Multimedia products
Please contact Microsoft Support for information on how to obtain the hotfix.
Prerequisites
To apply this hotfix, you must be running one of the following operating systems:
-
Windows Server 2008 Service Pack 2 (SP2)
-
Windows Server 2008 R2 Service Pack 1 (SP1)
Additionally, you must have the DNS Server role installed.
For more information about how to obtain a Windows Server 2003 service pack, click the following article number to view the article in the Microsoft Knowledge Base:889100 How to obtain the latest service pack for Windows Server 2003 For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849 How to obtain the latest service pack for Windows Server 2008 For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2
Registry information
To apply the hotfix in this package, you do not have to make any changes to the registry.
Restart requirement
You do not have to restart the computer after you apply this hotfix. To avoid restarting, stop the DNS Server service.
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 file information notes
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" 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.
Version
Product
SR_Level
Service branch
6.0.600
2. 22xxxWindows Server 2008
SP2
LDR
-
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" section. MUM files 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 x86-based versions of Windows Server 2008
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Cache.dns |
Not Applicable |
3,179 |
09-Sep-2011 |
11:25 |
Not Applicable |
Dns.exe |
6.0.6002.22758 |
510,976 |
19-Dec-2011 |
14:05 |
x86 |
Dnsserver.events.xml |
Not Applicable |
609 |
09-Sep-2011 |
11:25 |
Not Applicable |
For all supported x64-based versions of Windows Server 2008
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Cache.dns |
Not Applicable |
3,179 |
15-Nov-2011 |
15:04 |
Not Applicable |
Dns.exe |
6.0.6002.22758 |
638,976 |
19-Dec-2011 |
14:25 |
x64 |
Dnsserver.events.xml |
Not Applicable |
609 |
15-Nov-2011 |
15:04 |
Not Applicable |
Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, only "Windows 7" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7" 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, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Version
Product
Milestone
Service branch
6.1.760
1.21xxxWindows Server 2008 R2
SP1
LDR
-
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
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Cache.dns |
Not Applicable |
3,198 |
05-Nov-2010 |
01:52 |
Not Applicable |
Dns.exe |
6.1.7601.21879 |
698,368 |
17-Dec-2011 |
06:20 |
x64 |
Dnsserver.events.xml |
Not Applicable |
609 |
05-Nov-2010 |
01:52 |
Not Applicable |
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Additional file information
Additional file information for Windows Server 2008
Additional files for all supported x86-based versions of Windows Server 2008
File name |
X86_130a386c3e77ee0be889d2ec60cc1851_31bf3856ad364e35_6.0.6002.22758_none_1c49122c4d0b45a5.manifest |
File version |
Not Applicable |
File size |
706 |
Date (UTC) |
20-Dec-2011 |
Time (UTC) |
05:48 |
File name |
X86_microsoft-windows-dns-server-service_31bf3856ad364e35_6.0.6002.22758_none_5047f7f2ecf9cac5.manifest |
File version |
Not Applicable |
File size |
163,376 |
Date (UTC) |
19-Dec-2011 |
Time (UTC) |
16:25 |
Additional files for all supported x64-based versions of Windows Server 2008
File name |
Amd64_0b0f25f6b8df1108392f63689a016ff6_31bf3856ad364e35_6.0.6002.22758_none_a16c3bb6f2918dba.manifest |
File version |
Not Applicable |
File size |
710 |
Date (UTC) |
20-Dec-2011 |
Time (UTC) |
05:48 |
File name |
Amd64_microsoft-windows-dns-server-service_31bf3856ad364e35_6.0.6002.22758_none_ac669376a5573bfb.manifest |
File version |
Not Applicable |
File size |
163,418 |
Date (UTC) |
19-Dec-2011 |
Time (UTC) |
16:39 |
Additional file information for Windows Server 2008 R2
Additional files for all supported x64-based versions of Windows Server 2008 R2
File name |
Amd64_8233f1f83901b9d9b648f65d02f5bd23_31bf3856ad364e35_6.1.7601.21879_none_d26f396b4087a056.manifest |
File version |
Not Applicable |
File size |
710 |
Date (UTC) |
18-Dec-2011 |
Time (UTC) |
00:45 |
File name |
Amd64_microsoft-windows-dns-server-service_31bf3856ad364e35_6.1.7601.21879_none_ac79ad66067de3bd.manifest |
File version |
Not Applicable |
File size |
158,131 |
Date (UTC) |
17-Dec-2011 |
Time (UTC) |
07:59 |