This is what I get from a telnet on port 80 to the server :
I'm not surprised, I don't expect it to accept telnet connections on that port, actually, even on port 23 it refuses the connection, which I expect it to do...
What I authorise to this server, is a SSH connection on 22, and I expect it to accept connections on port 80 through the httpd service.
Now to answer the question, there is a firewall, but no restrictions on the LAN side... I also have Nagios installed on a Debian server, which I can connect right now next to the Fedora server, and I'm able to surf to its Nagios page. I also did exactly the same things on all 3 installations (Ubuntu-VM, Debian and Fedora), except for that SELinux disable part for Fedora, and have no problem at all on Ubuntu or Debian, so I'm thinking there is some extra protection I need to get passed in order to surf remotely to my Nagios main page.
Anyway, thanks already for replying I kept on searching since yesterday but still didn't find anything yet, so I'll be keeping this forum opened hoping for some more tries to find out a solution for my problem...