Configuring UIs After Deployment > Configure and Start Tomcat
  
Configure and Start Tomcat
The configuration task consists only of updating the Tomcat port number. Updating the port number is required only in these situations:
You did not accept the default 8080 port when you installed the Tomcat servlet engine.
You have multiple Tomcat instances on the same server, which may result in port conflicts.
Other applications already use the default Tomcat port. For example, Oracle 9i uses port 8080 as the default port for its Web server.
 
See Install Tomcat and UI Web Application (required).