I need to change the URL of Tomcat Server because I want access it from other devices

Tomcat as URL uses localhost:8080. I want that URL be something like: 'www.myproject' in order to have a simple access to it without insert an address. I would want this access be possible to every device that is connected on the same net(router). I use on my project, deployed on Tomcat, a paypal service and it requires a return URL and cancel URL to be used ( paypal service)

So the address (localhost) independently from the net, must be the same . I've tried to use tag Alias>http://ift.tt/1R4arQ3> on server.xml in tomcat path but it didn't work, thanks for your help.