# Guide to OpenIG
8.3. Setup Details

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### 8.3.4. Tomcat Installation

Install on OpenIG host listening on port 8080.

`/etc/hosts` or equivalent with a mapping of demo.forgerock.com to 127.0.0.1. This example assumes the browser and OpenIG are on the same host. If the browser is on a different host you must create a mapping so that all requests to demo.forgerock.com are resolved to the OpenIG host.

To test, startup Tomcat and make sure you can browse to http://demo.forgerock.com:8080 and get the Tomcat home page. If you get a different page, then you have not modified your host file settings correctly. demo.forgerock.com should resolve to either localhost or the host OpenIG where is running.