What LDAP port?

You need to change this in exchange 5.5. Click on Configurations>Protocols>LDAP. Make sure the check by "enable" is selected and change the port to 390.

There are two places you need to change the LDAP port # in Exchange - under the Configuration/Protocols/LDAP Settings properties and under the Servers/[server name]/Protocols/LDAP Settings properties. If you don't change it in both places, you'll get the error message you mentioned. You can use any port number that's not already in use - I usually use 889 because it's unused, and it looks a lot like 389 but isn't (how's that for a weird reason. . .). Once you get converted to Win2K I'm assuming you will be completely removing your Exchange 5.5 server anyway, so it doesn't really matter. Hope this helps!

Hi
pls read these articles

Good luck

Mohamed

pgrading Exchange Server 5.5 to a Win2K System
http://www.winnetmag.com/Articles/Index.cfm?ArticleID=8698

How to Change LDAP Port Assignments in Exchange Server
http://support.microsoft.com/default.aspx?scid=KB;en-us;q224447

Changing the Port Used by the Exchange Server 5.5 Directory for LDAP over SSL
http://support.microsoft.com/default.aspx?scid=kb;EN-US;232606

Exchange Server 5.5 Setup Does Not Work on Windows 2000 Server
http://support.microsoft.com/default.aspx?scid=KB;en-us;q235669

How to Obtain the Latest Exchange Server 5.5 Service Pack
http://support.microsoft.com/default.aspx?scid=kb;EN-US;191014

Upgrading Microsoft Exchange Server 5.5 to the Windows 2000Platform
http://www.microsoft.com/exchange/techinfo/deployment/55/Upgrade2000.asp

5.5 Migration Wizard Fails When Creating Windows NT Accounts In Windows 2000 Domain
http://support.microsoft.com/default.aspx?scid=KB;en-us;q240135

Statically Mapped Port Limitations for Exchange Server
http://support.microsoft.com/default.aspx?scid=kb;EN-US;194952

TCP Ports and Microsoft Exchange: In-depth Discussion
http://support.microsoft.com/default.aspx?scid=kb;EN-US;176466

more ....

Setting TCP/IP Ports for Exchange and Outlook Client Connections Through a Firewall
http://support.microsoft.com/default.aspx?scid=kb;EN-US;155831

Information about TCP/IP Port Assignments
http://support.microsoft.com/default.aspx?scid=kb;EN-US;174904

Windows NT, Terminal Server, and Microsoft Exchange Services Use TCP/IP Ports
Information about TCP/IP Port Assignments
http://support.microsoft.com/default.aspx?scid=kb;EN-US;150543

PORT NUMBERS
(last updated 2002-12-12)
http://www.iana.org/assignments/port-numbers

for information about specific TCP/IP port assignments, see RFC 1700 on the Information Sciences Institute Web site at the following locatio

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