To start, stop, or restart either Retain; you start, stop, or restart Tomcat.
Here are instructions on starting, stopping, and restarting Tomcat on Windows and Linux:
In Windows, it runs as a service (Retain Tomcat n), so simply start, stop, or restart that service.
Retain 2/3: Apache Tomcat [n] (where "n" is the Tomcat version, 5/7)
Retain 4.0-4.1.0.1: Retain Tomcat 7
Retain 4.2 and higher: Retain Tomcat 8
The following commands are typed at the command prompt:
Start: rcretain-tomcatX start
Stop: rcretain-tomcatX stop
Restart: rcretain-tomcatX restart
Status: rcretain-tomcatX status
Where "X" is the version of tomcat (i.e., Retain 2.x uses tomcat5, Retain 3.x and 4.0-4.1.0.1 uses tomcat7, and Retain 4.2 or higher uses tomcat8)
Start: systemctl start retain-tomcatX.service
Stop: systemctl stop retain-tomcatX.service
Restart: systemctl restart retain-tomcatX.service
Status: systemctl status retain-tomcatX.service
Where "X" is the version of tomcat (i.e., Retain 2.x uses tomcat5, Retain 3.x and 4.0-4.1.0.1 uses tomcat7, and Retain 4.2 or higher uses tomcat8)