It’s very simple. You only need to take a look at the conf/server.xml
configuration file to add a new connector for the port you want. For example, if you have a connector like this:
<Connector port="8080"
protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443"
URIEncoding="UTF-8" />
Just add a new connector same as above in the configuration file, but altering the port parameter. That’s all. Restart and you’re done.