DOCUMENT:Q171998 10-AUG-2001 [winnt] TITLE :"A" Records Automatically Appear and Disappear in DNS Manager PRODUCT :Microsoft Windows NT PROD/VER:winnt:4.0 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== In DNS Manager, you may notice that "A" records randomly appear and disappear without you entering or deleting them. CAUSE ===== This issue will occur if your DNS zone is configured to query WINS. RESOLUTION ========== These records are not a problem, but if you wish to alter the amount of time they appear in DNS Manager you need to edit the Cache Timeout Value using the following steps: 1. From DNS Manager, right-click the zone where the entries are appearing. 2. Click Properties, click WINS Lookup, and then click Advanced. 3. Change the Cache Timeout Value to the desired setting. 4. Click OK, then click OK again. MORE INFORMATION ================ When DNS resolves a query through WINS, DNS will cache the name in memory for the amount of time specified in the 'Cache Timeout Value' field under the Advanced WINS Lookup configuration of the zone properties. The records are visible from DNS Manager only, and they do not get added to the actual zone file. Only successful name queries are placed into cache. Additional query words: ====================================================================== Keywords : kbnetwork Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : winnt:4.0 Issue type : kbinfo ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.