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MessageStats 7.8 - Report Pack for Outlook Web Access (OWA) User Guide

Custom Installations

In some large enterprises, Database and Web Servers may be managed by a central resource. In order to install MessageStats in these environments, you can distribute the components onto appropriate machines using a Custom Installation. The most common scenario is to use a separate MessageStats Server and additional Task Processor servers.

In this type of deployment, data from the remote Exchange servers is processed by the local task processor. Then the report-ready data is transferred to the MessageStats Server and stored in the database. This minimizes network traffic by eliminating the need to copy all the data from the remote servers.

The MMC Client Console is installed on a MessageStats administrator's workstation or laptop. The administrator can create tasks and view log files, but task scheduling and gathering are carried out at another location with more robust resources.

To install the Report Pack for OWA onto an existing distributed MessageStats environment, use a Custom installation and install according to the following table.

 
Table 1. Distributed installation location of components
Core MessageStats Components
Report Pack Components
Function

MMC Client Console

OWA MMC Client Console

Adds the OWA components to the existing MessageStats MMC client console

Scheduler Service/Task Processors

OWA Task Processors

Adds the OWA task processor to the existing MessageStats Task Execution Server

Database

OWA Database

Extends the existing MessageStats database schema in order to store OWA Statistics

Reports

OWA Reports

Adds the OWA Reports to the existing MessageStats Reports site

Appendix B: Configuring RPC Through a Firewall

•
Configuring RPC Through a Firewall
•
Configuring RPC for OWA Access
•
Configuring the ISA Server

Configuring RPC Through a Firewall

To configure MessageStats to gather OWA data from an Exchange server, the console must be able to enumerate the IIS virtual directories on the Exchange server. This is done by making Remote Procedure Calls (RPC) to the IIS Management API on the server.

If your OWA Exchange server is protected by firewall software from the internal network that includes the MessageStats server, you may need to perform some RPC configuration on your Exchange server. You may also need to open certain ports on your firewall to grant MessageStats access to the remote API.

This appendix provides a procedure that you can use to configure your OWA server and firewall. The procedure assumes that you are using a Microsoft ISA Server as your firewall software. If you are using another firewall solution, the concepts behind the procedure are still valid.

 
* 
IMPORTANT: This procedure requires that you manually edit the contents of the Windows registry. Serious problems can occur if you modify the registry incorrectly using Registry Editor or using another method. These problems might require that you reinstall the operating system. Quest cannot guarantee that problems can be solved. Modify the registry at your own risk.

Be sure to back up the registry before you modify it. Ensure that you know how to restore the registry if a problem occurs. For information about how to back up, restore, and modify the registry, see the Microsoft knowledgebase..

There are two parts to the process:

•
Configuring RPC
•
Configuring the ISA Server

Configuring RPC for OWA Access

In a default Windows installation, RPC is configured to randomly assign server ports to any port above 1024. It is unwise to open every port over 1024.

The recommended procedure is to configure RPC to use a specific range of ports. Microsoft recommends using ports 5000 and up since ports less than 5000 may be reserved.

Microsoft also recommends that a minimum of 100 ports be opened. Therefore this example shows how to configure RPC on the OWA server to use ports 5000 to 5100.

Example: To configure RPC to use ports 5000 to 5100
1
Create the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\Internet
2
Under the Internet key, add the following values:
•
Ports (MULTI_SZ)
•
PortsInternetAvailable (REG_SZ)
•
UseInternetPorts (REG_SZ)
3
Set the new values as follows:
 
Table 1. Settings for the new key values
Name
Type
Value

Ports

MULTI_SZ

5000-5100

PortsInternetAvailable

REG_SZ

Y

UseInternetPorts

REG_SZ

Y

4
Reboot the OWA server.
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