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Windows 2000 DNS Does Not Resolve NS to CNAME to an A Resource Record MappingArticle ID: 326363 - View products that this article applies to. This article was previously published under Q326363 IMPORTANT: This article contains information about modifying the registry.
Before you modify the registry, make sure to back it up and make sure that you
understand how to restore the registry if a problem occurs. For information
about how to back up, restore, and edit the registry, click the following
article number to view the article in the Microsoft Knowledge Base: 256986
(http://support.microsoft.com/kb/256986/EN-US/
)
Description of the Microsoft Windows Registry
On This PageSYMPTOMS Windows 2000 DNS may not resolve an NS resource record that
is mapped to a CNAME resource record that is mapped to an A resource record.
Because of this, queries to certain sites may not work. Typically an NS
resource record is mapped to an A resource record. RESOLUTIONService Pack InformationTo resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:260910
(http://support.microsoft.com/kb/260910/EN-US/
)
How to Obtain the Latest Windows 2000 Service PackHotfix InformationA 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 this specific problem.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, submit a request to 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=support 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. The English version of
this fix has the file attributes (or later) that are listed in the following
table. The dates and times for these files are listed in coordinated universal
time (UTC). When you view the file information, it is converted to local time.
To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
(http://support.microsoft.com/contactus/?ws=support)
Date Time Version Size File name -------------------------------------------------------- 28-Aug-2002 16:13 5.0.2195.6035 325,392 Dns.exe STATUSMicrosoft
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 Microsoft Windows 2000 Service Pack 4. MORE INFORMATIONWARNING: If you use Registry Editor incorrectly, you may cause serious
problems that may require you to reinstall your operating system. Microsoft
cannot guarantee that you can solve problems that result from using Registry
Editor incorrectly. Use Registry Editor at your own
risk. By default, after you apply this hotfix, NS to CNAME to A is resolved. To turn off this new behavior, create the following registry entry: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\DNS\Parameters 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: Name: AllowCNAMEatNS Type: DWORD Value: 0 (zero) 265173 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:
(http://support.microsoft.com/kb/265173/EN-US/
)
The Datacenter Program and Windows 2000 Datacenter Server Product
296861
(http://support.microsoft.com/kb/296861/EN-US/
)
Use QChain.exe to Install Multiple Hotfixes with One Reboot
PropertiesArticle ID: 326363 - Last Review: February 21, 2007 - Revision: 3.6
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