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Incomplete CNAME resource recordset is returned if a DNS recursive lookup fails in Windows 8 or Windows Server 2012


View products that this article applies to.

Symptoms

Consider the following scenario:
  • You have a computer that's running Windows 8 or Windows Server 2012.
  • You try to perform a Domain Name System (DNS) query from the computer.
  • You find that an incomplete alias (CNAME) resource recordset is returned if the DNS recursive lookup fails. For example, the recordset may be missing the A/AAAA record.
In this scenario, you cannot obtain the correct alias recordset in future queries of that DNS resource record for a particular time period. Additionally after the time period has expired, you find you still cannot perform a correct CNAME resource recordset query. This behavior occurs because the CNAME Time to Live (TTL) setting is returned from the previous failed recursive lookup.

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Cause

This problem occurs because of an issue in the way that the DNS client caches the CNAME resource recordset.

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Resolution

Hotfix information

A supported hotfix is available from Microsoft Support. 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, go to the following Microsoft website: Note 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.

Prerequisites

To apply this hotfix, you must have Windows 8 or Windows Server 2012 installed.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

File information
The English (United States) 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 8 and Windows Server 2012 file information and notes

Important Windows 8 and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" 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 8" 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.

    VersionProductMilestoneService branch
    6.2.920 0.20 xxxWindows 8 and Windows Server 2012RTMLDR
  • 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 8 and Windows Server 2012" 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 x86-based versions of Windows 8
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.2.9200.20900461,82420-Dec-201306:32x86
Dnsrslvr.dll6.2.9200.20900160,76820-Dec-201306:32x86
For all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.2.9200.20897605,18420-Dec-201300:38x64
Dnsrslvr.dll6.2.9200.20900210,94420-Dec-201300:38x64
Dnsapi.dll6.2.9200.20900461,82420-Dec-201306:32x86

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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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Additional file information

Additional file information for Windows 8 and for Windows Server 2012

Additional files for all supported x86-based versions of Windows 8
File nameX86_8fce0eb305185431e8b0dfe8b7aa400b_31bf3856ad364e35_6.2.9200.20900_none_02bcab1569ee4521.manifest
File versionNot Applicable
File size705
Date (UTC)20-Dec-2013
Time (UTC)16:11
PlatformNot Applicable
File nameX86_microsoft-windows-dns-client-minwin_31bf3856ad364e35_6.2.9200.20900_none_9312e4220d6cab50.manifest
File versionNot Applicable
File size22,278
Date (UTC)20-Dec-2013
Time (UTC)07:05
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameAmd64_5c137beb2ea7c29c98bfde85471312e0_31bf3856ad364e35_6.2.9200.20900_none_0131eafb8a914b4d.manifest
File versionNot Applicable
File size709
Date (UTC)20-Dec-2013
Time (UTC)16:12
PlatformNot Applicable
File nameAmd64_5c67d03c295ec0d6969f4600b4133628_31bf3856ad364e35_6.2.9200.20900_none_f10dc3fd11b05e7d.manifest
File versionNot Applicable
File size709
Date (UTC)20-Dec-2013
Time (UTC)16:12
PlatformNot Applicable
File nameAmd64_microsoft-windows-dns-client-minwin_31bf3856ad364e35_6.2.9200.20900_none_ef317fa5c5ca1c86.manifest
File versionNot Applicable
File size22,286
Date (UTC)20-Dec-2013
Time (UTC)10:03
PlatformNot Applicable
File nameWow64_microsoft-windows-dns-client-minwin_31bf3856ad364e35_6.2.9200.20900_none_f98629f7fa2ade81.manifest
File versionNot Applicable
File size18,396
Date (UTC)20-Dec-2013
Time (UTC)07:05
PlatformNot Applicable

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References

Learn about the terminology Microsoft uses to describe software updates.

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Keywords: kb, kbautohotfix, kbqfe, kbhotfixserver, kbfix, kbexpertiseinter, kbsurveynew, kbbug

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Article Info
Article ID : 2921056
Revision : 1
Created on : 1/7/2017
Published on : 2/11/2014
Exists online : False
Views : 192