HTTP and OC4J includes the HTTP Server, OC4J, and Web Cache. These components enable your administrators and users to access the infrastructure tier using HTTP:

	Oracle HTTP Server is the HTTP entry point into Oracle Collaboration Suite. The Oracle HTTP Server is based on the Apache web server, but with additional and enhanced modules.
	Web Cache is a caching reverse proxy server that is located in front of the Oracle HTTP Server. It improves performance of Web server instances by storing frequently accessed pages in memory, eliminating the need to repeatedly process requests for pages from the Web server, the applications, or the Oracle database.
	Oracle9iAS Containers for J2EE (OC4J) is a fast, lightweight, highly scalable, easy-to-use, and complete Java2 Enterprise Edition (J2EE) container written entirely in Java, that executes on the standard Java Development Kit (JDK) Virtual Machine (Java VM) available on the operating systems and hardware platforms on which Oracle9iAS is certified.

Complete the Preinstallation Tasks lesson.

Load the Infrastructure CDROM. Change directory to Disk1. Invoke Oracle Universal Installer by typing runInstaller at the command prompt. Assuming the pre-requisite checks succeeded, or any failures can by ignored, type y at the prompt and press Enter.

At the Oracle Universal Installer welcome screen, click Next.

Specify location for the installer files then click OK.

Type the O/S group name of the O/S account being used to install OCS then click Next.

Open another window and login as root. Run the shell script orainstRoot.sh in /app/oracle/product/oraInventory directory.

Enter the name and path of the ORACLE_HOME for the Infrastructure then click Next.

Select the languages you need then click Next.

Confirm that your machine meets the pre-installation requirements. Click on each checkbox then click Next.

Accept the default configuration options and click Next.

Enter the Infrastructure instance name (for EM) and password for the EM administrator (ias_admin) account and click Next.

An orclguest account will automatically be setup so that the OCS administrator can test the OCS installation. Enter a password and click Next.

12.

At the Summary window, review the components and click Install.

13.

The infrastructure is being installed.

14.

When you see this window, open another window and login as root. Run the shell script root.sh in /app/oracle/product/ocs_inf directory. Then switch back to the installer window and click OK.

15.

The Oracle Database Configuration Assistant will now run. All the Infrastructure components will be configured and started.

16.

When the Oracle Database Configuration Assistant completes, the Infrastructure database will be created.

17.

After all the Infrastructure components have been configured and started, you will see this window. Click Exit. Then click Yes.

Open a browser and enter the following URL:

http://<hostname.domain>:1810

Enter the EM administrator name (ias_admin) and password.

You should see your Infrastructure instance listed.

You can also verify the Infrastructure Portal installation. Enter the following URL:

http://<hostname.domain>:7777

Start the Xvfb server as root. Remember the port number you assign. In this example, the port was set to :11.

Create a backup copy of the the opmn.xml file in the $ORACLE_HOME/opmn/conf directory.

Open the opmn.xml file and search for DISPLAY. Set the value of DISPLAY to the Xvfb port (:11).

Restart the Infrastructure processes. Change directory to $ORACLE_HOME/opmn/bin. Issue the following commands:

opmnctl stopall
opmnctl startall