Configuring the gateway

You can install the optional gateway on one or more computers. Install the gateway if you plan on setting up advanced options such as single sign-on with Kerberos security with IIS, or an architecture where the web server is publicly available outside a firewall. IBM® Cognos® Analytics uses the web server for load balancing certain requests in addition to hosting and serving static content like icons and image files.

Ensure that the computer where you installed the active Application services is configured and available before you configure gateway computers.

The following diagram shows the gateway server and multiple Cognos Analytics servers. With load balancing enabled, the work load can be distributed across the servers.

This configuration is also recommended in a single application tier environment as the routing would just go to the one server and is ready to add additional tier servers when needed.

Perform the following steps to install and configure the gateway:

• Install the gateway components. See Installing the Cognos Analytics gateway.
• Configure IBM Cognos Analytics. See Configure Cognos Analytics with your web server.
• If your web server is Apache HTTP Server or IBM HTTP Server, perform the procedures in Configure Apache HTTP Server or IBM HTTP Server .
• If your web server is Microsoft Internet Information Services, perform the procedures in Configure Microsoft Internet Information Services.
• Test the gateway installation .