The system administrator is responsible for:
Configuring message security providers on the Application Server.
Managing user databases.
Managing keystore and truststore files.
Configuring a Java Cryptography Extension (JCE) provider if using Encryption and running a version of the Java SDK prior to version 1.5.0.
Installing the samples server in order to work with the example message security applications.
A system administrator uses the Admin Console or the asadmin tool to manage server security settings and keytool to manage certificates. System administrator tasks are discussed in the Configuring Message Security chapter of the Sun Java System Application Server Enterprise Edition 8.2 Administration Guide.