During Redhat 9's install, i specifically said to disable the firewall. Now, i installed lmule and it tells me that it can't reach port 4662. How can i find out if the firewall is turned on or off? I ...

Even if you turn off the firewall, which I don't think you can do, you still have NAT to deal with and that'll prevent you from hosting something unless you move your computer into the router's DMZ or ...