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In today's globalized world, modern organizations face a lot of opportunities and challenges every day. Many of these challenges can put an onus on the organization's IT infrastructure therefore its configuration is crucial. The Apache Geronimo application server supports small-to-medium-sized enterprise applications and provides robust, secure support for the latest J2EE specification.This section will highlight the different configuration options that can be used in your production environment.

Two-tier system

The figure below shows a client machine accessing an application hosted in the Geronimo server. Althougth the figure depicts only one client machine, several machines can be connected to the server and users on these machines can access the hosted Web applications using a standard Web browser.
The client-side application can vary from being a simple command line user interface to a full-fledged user interface such as those created using popular client-side GUI technology. These applications can access the Web tier by connecting to the server using their own HTTP connections, or they can access business and EIS tier objects through the help of the Geronimo client application container.
Features of the Geronimo application client : -

• Seperate from the Geronimo server
• Communication with the Geronimo server is over the network
• Provides mapping,dependency management for the client application and reference resolution

Three-tier system

Three tier architecture system is more scalable than two tier as it supports hundreds of users and organization. It also increases flexibility and freedom.

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