# Preparing to Install

## Requirements

For detailed information about the requirements for running IG, see Requirements. The following software is required:

• Oracle JDK 11 or later versions, or OpenJDK 11 or later versions.

## Configuring the Network

Configure the network to route network traffic to IG and the sample application. The examples in the guide assume that:

• IG is reachable on `http://openig.example.com:8080`.

• The sample application is reachable on `http://app.example.com:8081/home`.

• AM is reachable on `http://openam.example.com:8088/openam`.

Before you try out the examples, configure the network to include the hosts.

Configure the Network
1. Add the following additional entry to your `/etc/hosts` file on UNIX systems or `%SystemRoot%\system32\drivers\etc\hosts` on Windows:

``127.0.0.1  localhost openig.example.com app.example.com openam.example.com``