I have just installed the latest version of Ubuntu server, php, Apache, Shorewall and MySQL.
The problem is that I can't access the website from other computers. I read that to fix that I need to change the DMZ or Port Forwarding. I'm not sure how to do that; which document to change or what.
Also the problem is that I live on an apartment complex where internet access is included. I just plug the ethernet cable to the wall and I register on a time warner "HiSpeedUp" page and then I get the internet working. So I don't know how to check the router information or anything.