Apache Geronimo v2.2 Documentation: Running Geronimo

Running Geronimo as a non-root user — It is very likely that you will not want to have the Geronimo server process under the super user root. The following are a series of simple steps for changing the ownership and permissions for the required files in order to run Geronimo with a different user.
Running Geronimo as a service — This section will show you how to run Geronimo as a service on Windows and Linux platforms.
Running Multiple Geronimo Instances — It is possible to run multiple instances of geronimo on the same machine.