By right clicking on the "Jboss Management Console" in the applet frame
of the web-console, there are options to shutdown/restart jboss instance.
Is their a way to start a new JBoss instance?
JBoss 4 is based on a JMX microkernel architecture. You can read more about it here:
In addition to csaldanh's response for web-console, here is a direct link into the jmx-console, where you will find the shutdown() method, among others:
If you want to have cli-level interaction with JBoss (rather than using a browser), you can use twiddle:
Now, per your question "starting" JBoss from a browser. Well, if JBoss is not running, obviously you can't connect to via a browser it to start itself. ;) HOWEVER, we do have a solutions for you, known as the JBoss Operations Network (aka "JON"):
JON is an enterprise administration management & monitoring solutions from JBoss, and is a value add for our paying subscribers. Unlike the jmx-console, with it's dynamic yet rudimentary interface into *one* AS instance, JON can manage multiple JBoss instances across your network. It features a server-agent delegate model, so, back to your "start" question: The JON server can remotely ask an agent (small JVM that runs on a remote OS) to start up a JBoss instance on its behalf.
If you would like more info on JON, please contact our sales:
Hope the above has been helpful.