How to Run Multiple Instances of Tomcat on a Single Server

Sometimes you want to host applications that cannot run on the same instance of Tomcat because of some incompatibility between the required classes of the two applications, or you might want to deploy the same application multiple times, perhaps for different customers, and you cannot do that on a single instance of Tomcat. Don’t despair – in those situations, you can run multiple instances of Tomcat on a single GNU/Linux server. Each will use the same binary, but turn to different areas for data.