DOCUMENT:Q194129 10-AUG-2001 [winnt] TITLE :Microsoft DNS Fails to Acquire Zone Transfer from BIND Primary 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 - Microsoft Windows NT Server, Enterprise Edition version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Changes made to a BIND primary DNS zone file are not being seen by a Microsoft DNS server configured as a secondary. CAUSE ===== BIND does not automatically update the serial number in the SOA record. DNS secondaries determine if a zone transfer (AXFR) is required by querying for the SOA from the primary zone. If the serial number in the primary's SOA is identical to the serial number in the secondary, the zone data is assumed not to have changed and a zone transfer is not requested. RESOLUTION ========== With a BIND primary, it will be necessary to manually update the SOA serial number (sometimes called the magic number) so that automatic zone transfers can be performed between the BIND server and a Microsoft DNS server. MORE INFORMATION ================ For more information, see RFC1034 paragraph 4.3.5: Zone Maintenance and Transfers. Additional query words: DNS Bind zone ====================================================================== Keywords : kbnetwork Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400 Version : WinNT:4.0 Hardware : x86 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.