http://MyDigitalOceanIPAdress:8080/MyApp was working great to start.

Now I changed /etc/tomcat7/server.xml like below, to use my new port (XXXX). However, when I try from the outside to get to my app using http://MyDigitalOceanIPAdress:XXXX/MyApp , then it just spins indefinitely.

There is something else I need to do. Can someone else tell me?
Thanks.

    <Connector port="XXXX" protocol="HTTP/1.1"
               connectionTimeout="20000"
               URIEncoding="UTF-8"
               redirectPort="8443" />