DOCUMENT:Q160519  09-AUG-2001  [winnt]
TITLE   :DNS Queries for Root Name Servers Every Hour
PRODUCT :Microsoft Windows NT
PROD/VER:winnt:4.0
OPER/SYS:
KEYWORDS:kbnetwork

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The information in this article applies to:

 - Microsoft Windows NT Server version 4.0 
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SYMPTOMS
========

You observe the Domain Name Service (DNS) querying for the root name servers at
one hour intervals.

CAUSE
=====

A thread meant to check the time-to-live (TTL) values of the cache file records
every hour also inadvertently queries for the root name servers every hour.

RESOLUTION
==========

Apply Windows NT 4.0 Service Pack 2 or greater to fix this.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 4.0.

A supported fix is now available, but has not been fully regression tested and
should be applied only to systems experiencing this specific problem. Unless you
are severely impacted by this specific problem, Microsoft recommends that you
wait for the next Service Pack that contains this fix. Contact Microsoft
Technical Support for more information.



Additional query words:

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Keywords          : kbnetwork 
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400
Version           : winnt:4.0
Issue type        : kbbug

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