Microsoft KB Archive/903720

= A DNS server that is running Windows Server 2003 cannot resolve new A resource records =

Article ID: 903720

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Enterprise x64 Edition

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SYMPTOMS
A Domain Name System (DNS) server that is running Microsoft Windows Server 2003 cannot resolve new host address (A) resource records when the following conditions are true:
 * There are already other resource records, such as mail exchanger (MX) resource records, for the host name.
 * The clients ask the same DNS server for other nonexistent records in the same domain.

Note This problem occurs not only for new A resource records, but also for any combination of existing and new records.



CAUSE
This problem occurs because the negative cache entry never times out in the DNS server cache. In this scenario, other requests reset the negative Time to Live (TTL) attribute of the new DNS resource record with a fresh TTL value. The fresh TTL value is generated by another resource record.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, 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

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart the computer after you apply this hotfix. However, after you install the hotfix, you must restart the DNS Server service.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) 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.

Windows Server 2003, x86-based versions
  Date         Time   Version            Size    File name --  11-Jul-2005  23:54  5.2.3790.368      423,936  Dns.exe

Windows Server 2003 with Service Pack 1 (SP1), x86-based versions
  Date         Time   Version            Size    File name --  12-Jul-2005  01:18  5.2.3790.2485     442,368  Dns.exe

Windows Server 2003, Enterprise Edition for Itanium-based versions
  Date         Time   Version            Size    File name --  11-Jul-2005  23:50  5.2.3790.368    1,025,024  Dns.exe          IA-64 11-Jul-2005 23:50  5.2.3790.368      423,936  Wdns.exe         x86

Windows Server 2003 with SP1, Enterprise Edition for Itanium-based versions
  Date         Time   Version            Size    File name --  11-Jul-2005  23:50  5.2.3790.2485   1,124,352  Dns.exe          IA-64 11-Jul-2005 23:50  5.2.3790.2485     442,368  Wdns.exe         x86

Windows Server 2003, x64-based versions
  Date         Time   Version            Size    File name --  11-Jul-2005  23:50  5.2.3790.2485     758,272  Dns.exe 11-Jul-2005 23:50  5.2.3790.2485     442,368  Wdns.exe



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows Server 2003 Service Pack 2.



MORE INFORMATION
For more information, 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 query words: Timeout CacheEmptyAuthResponses EmptyAuthResponses TTL

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver kbwinserv2003sp2fix KB903720

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