Changing default ports in hybris

By default hybris runs on 9001 as http and 9002 as https port etc. If any one needs to change these ports the following instruction will helpful
The port numbers are there in the platform/project.properties files as given below
tomcat.http.port=9001
tomcat.ssl.port=9002
tomcat.ajp.port=8009
tomcat.jmx.port=9003
tomcat.jmx.server.port=9004
Copy the above properties to local.properties and change it instead of changing it on the origin