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Plugin - An archive file (.car or .war) that can be installed into Geronimo to install a specific new service, such as ActiveMQ. For more about plugins, or to look at available plugins, check out geronimoplugins.com or geronimoplugincentral.org.
.CAR file (Configuration ARchive) - An archive file that stores Geronimo-specific configurations, as well as the classes, libraries, web pages, and other information associated with an application.
.WAR file (Web ARchive)- An archive file that contains a web application, including all of its classes, libraries, HTML and JSP pages, and other information. It can be deployed on any Java Enterprise compatible servlet container.
ACE (Administration Console Extension) - An archive file (either a .car or a .war), that includes Administration Console portlets. These portlets will be added to the Extensible Administration Console when the ACE is activated.
Extensible Administration console - A flexible version of Geronimo's original administration console. Once installed it is available at http://localhost:8080/console, and includes some portlets that correspond to the currently activated services in Geronimo.
Service - a component or set of functionality for Geronimo - it may be pre-installed, such as the Tomcat or Jetty web container, or it may be installed as a plugin
Minimal console - The administration console as it is first installed - with only the services necessary for basic functionality
Portlet - A web user interface component that can be assembled together with other similar components to create a web (portal) page. See the Portlet Specification JSR 168.

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1. Installing the extensible administration console into a Geronimo minimal assembly
2. Installing an ACE in the .car war format from an online repositorydisk
3. Installing an ACE in the .war car format from disk an online repository

   Note
   title Which kind of file format do I want ?
   Need console extensions for a component you already have? If you are planning to add Administration Console portlets for a component that is already installed on your server, a .war file is simplest. A .war-format ACE has only the needed portlets, and is dependent on the component already being installed. Need the component and its extensions? If you need to install both a new component and its associated Admin Console portlets, a .car file is the right choice. This will look up and download all the necessary components and dependencies, and will also install the new ACE file. A .car file can also be used if the component is already installed. Not sure? If you aren't sure that you have all the pre-requisites installed, a .car is the safest option. This will work regardless of whether the component is pre-installed or not.

   Note
   title What about installing a .car file from disk?
   Unfortunately, it is not possible to install a .car file from disk with the current Geronimo Administration Console. However you can still use the "deploy install-plugin" tool from the command line. For more information, read up on the deployer tool at http://cwiki.apache.org/GMOxDOC11/deployer-tool.html

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