The total absence of any information on the site about what it is you're downloading, what it's requirements are, or how to install it, is rather unhelpful. I downloaded the zip file just to find out what was inside it.
I haven't tried installing it yet, but in principle installing .war files can be very simple. You need an application server (such as Apache Tomcat), you log into the admin section of that in your browser, and somewhere in there there's a form where you just upload the .war file, and it gets automatically unpacked, installed, services started up, and so on.
Edit: I take it all back. Well, most of it. They have an install guide, which you can find via Support, Documentation.
Yeah, simple. And then the Java app tells you that you don't have the right version of Tomcat and do need at least an 0.0.1 update. (Yes, I was forced to run JIRA on Ubuntu 10.04 LTS)
I haven't tried installing it yet, but in principle installing .war files can be very simple. You need an application server (such as Apache Tomcat), you log into the admin section of that in your browser, and somewhere in there there's a form where you just upload the .war file, and it gets automatically unpacked, installed, services started up, and so on.
Edit: I take it all back. Well, most of it. They have an install guide, which you can find via Support, Documentation.