DOCUMENT:Q179309 31-OCT-1999 [exchange] TITLE :XADM: LDAP Port for SSL Is Not Configurable In Exchange PRODUCT :Microsoft Exchange PROD/VER:winnt:5.0,5.5 OPER/SYS: KEYWORDS:exc5 exc55 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, versions 5.5, 5.0 ------------------------------------------------------------------------------- SUMMARY ======= In Microsoft Exchange Server versions 5.0 and 5.5, the Secure Sockets Layer (SSL) port for Lightweight Directory Access Protocol (LDAP) can not be changed; it is fixed on port 636. MORE INFORMATION ================ Currently, all clients are configured to connect to port 636 for SSL LDAP directory queries. This port is not configurable from the client, so there is no reason to change it on the server. Doing so would make clients unable to connect for these queries. Normal LDAP queries are configured for Port 389. For more information on configuring this port, please see the following Microsoft Knowledge Base article: Q176169 XADM: How to Install ILS on Exchange Server Computer Additional query words: Security encryption certificate ====================================================================== Keywords : exc5 exc55 Technology : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2 Version : winnt:5.0,5.5 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 1999.