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 Take  Take a backup of your system before you install a module. Uninstalling a module is not as simple as removing the .jar file. Modules add new configuration nodes, modify existing configuration and change configuration and may change content. We recommend trying out Try new modules in a test environment first.A  A module consist of a JAR file and potentially other dependencies as may include dependent JAR files. Modules are responsible for updating their own content and configuration across versions. Be sure to keep only one single version of each module and its dependencies.

To install a module:

1. Stop the application server where you deploy the module.
2. Copy the JAR file(s) into module JAR files into the WEB-INF/libdirectory inside your webapp. Location  directory. The location of this directory depends on the application server.
   
   • Tomcat: /webapps/magnoliaAuthor/WEB-INF/lib
   • JBoss: /server/default/deploy/magnoliaPublic/WEB-INF/lib
3. Restart the instanceserver.
4. Access Go to the AdminCentral interfaceURL.Magnolia CMS update wizard will start.
5. Click the link to start the Start the Web update process.
   The  The update wizard installs the JAR file and reports results.
6. Click Start up Magnolia.
7. Magnolia CMS restarts.

Install the module Repeat the steps for each Author author and Public public instance by repeating the steps above.