DOCUMENT:Q187714 09-AUG-2001 [winnt] TITLE :Domain Controllers Being Replaced in 1C List PRODUCT :Microsoft Windows NT PROD/VER:winnt:3.51,4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server versions 3.51, 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== A condition can exist where the domain controller name can be replaced, or an invalid entry can be added to the 1C list in your Windows Internet Name Service (WINS) database. This can cause problems for clients authenticating to the domain. CAUSE ===== This condition happens when a Remote Access Service (RAS) user connects to the network with a domain controller with the same name as the corporate domain. The RAS-connected domain controller then registers in WINS. If the primary domain controller (PDC) is down or off the network, you can replace the PDC's 1C entry, and the 1B entry can be replaced on the corporate WINS servers. RESOLUTION ========== Microsoft recommends that RAS users resolve their names and register with an isolated WINS server, to which the rest of the WINS infrastructure pushes its registrations. This will allow the RAS users to resolve the names of the computers on the corporate network but will not allow internal users to resolve the external RAS user's name. Stopping the registrations of the RAS users being propagated to the internal solves the problem. Additional query words: hijack dun pull ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNT351search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS351search Version : winnt:3.51,4.0 Issue type : kbprb ============================================================================= 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.