How Can I Start/stop/restart Tomcat By-myself?

Please log in to your Java Control Panel provided to you by JavaProvider.net (panel URL given in welcome email). In "Appservers" section - you will see a "Force Restart" button. Pressing of this button makes sure JVM (and thus your appserver) is definitely stopped then started. This is recommended method when you upload a new WAR. Using Tomcat Manager undeploy and deploy cycle can cause memory leaks. Another method is to login via SSH and run shortcut command 'jr' - java restart. Similar shortcuts available are: 'jk' - java kill, 'js' - java start.