I need to deploy my application so that it can be accessible over the internet and not just on my network.

Here is the setup:

I have JBoss AS 7.1 running on our linux box, I can successfully access it within the network but when I asked a colleague who is outside the network, to log on, he can't access it.

I've done research on this and come across making it run by: standalone.sh -b 0.0.0.0 but I understand this does not support Jboss AS7. As result I've done this:

<interfaces>
    <interface name="management">
        <inet-address value="${jboss.bind.address.management:127.0.0.1}"/>
    </interface>
    <interface name="public">
        <inet-address value="${jboss.bind.address:<your-public-ip>}"/>
    </interface>
</interfaces>

where I edited <your-public-ip> to our server's Ip address. but it doesn't work. Do I need to make the port available that my Jboss runs on? cause it runs on port 8555 (SSL). And if so How do I do that in linux?