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Setting TCP/IP Port Numbers for Internet Firewalls

Started by Guest_Dutchwall_*, Oct 04 2002 08:28 PM

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#1 Guest_Dutchwall_*

Guests

Posted 04 October 2002 - 08:28 PM

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs.

This article explains how to configure the Microsoft Exchange Information Store, Directory, and System Attendant Services to use predefined TCP/IP port numbers. This is useful when configuring Internet firewalls or routers.

Some Internet firewalls may not accept TCP/IP port numbers that Microsoft Exchange Server uses for Remote Procedure Call (RPC) communication. To solve this problem, add port 135 to your firewall and configure Microsoft Exchange Server to use the ports that your firewall will allow. The computer must be restarted for these changes to take effect.

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To configure the RPC Port for the Microsoft Exchange Directory Service:

1 Start Registry Editor (Regedt32.exe).

2 Find the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeDS\Parameters

3 Add the following registry value
TCP/IP port
as DWORD value, specifying the port to be used. The radix should be set to decimal when entering the value.

4 Quit Registry Editor.

To configure the RPC Port for the Microsoft Exchange Information Store Service:

1 Start Registry Editor (Regedt32.exe).

2 Find the following subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem

3 Add the following registry value
TCP/IP port
as DWORD value, specifying the port to be used. The radix should be set to decimal when entering the value.

4 Quit Registry Editor.

To configure the RPC Port for the Microsoft Exchange System Attendant:

NOTE: In order to administer an Exchange Server across a firewall, the Microsoft Exchange System Attendant should be configured to use a specific RPC port as well.

1 Start Registry Editor (Regedt32.exe).

2 Find the following subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeSA\Parameters

3 Add the following registry value
TCP/IP port
as DWORD value, specifying the port to be used. The radix should be set to decimal when entering the value.

4 Quit Registry Editor.

NOTE: The DWORD value should be in decimal.

NOTE: You have to change this registry setting only on the computer that runs Microsoft Exchange Server. Clients always connect to port 135, the RPC endpoint mapper, and then ask what ports they should use for the Directory and Information Store Services.

WARNING: Do not assign ports immediately above the 1023 range\

thnx to the microsoft mans for this tutor ;)

greetz,