JNDI Resources - Configuring standard and custom resources in the JNDI naming context that is provided to each web application.

Security Manager - Configuring and using a Java Security Manager to support fine-grained control over the behavior of your web applications.

Realms and Access Control - Description of how to configure Realms (databases of users, passwords, and their associated roles) for use in web applications that utilize Container Managed Security.

Host Manager - Operating the Host Manager web app to add and remove virtual hosts while the app is running.

Manager - Operating the Manager web app to deploy, undeploy, and redeploy applications while the app is running.

Deployer - Operating the Tomcat Deployer to deploy, precompile, and validate web applications.

It is intended to be a collaboration of the best-of-breed developers from around the world. Apache Tomcat software powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations.

The Apache Tomcat software is an open-source implementation of the Java Servlet, JavaServer Pages, Java Expression Language, and Java WebSocket technologies.

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