you dont really need to setup anything. host, refers to the current computers hostname.
hmmmmm... instead of using the network configuration thing in the configuration menu, i suggest downloading
webmin. Its a configuration program that runs in your browser (all you do is type in your local IP or localhost port 10000). It can be used to configure
anything in Linux.
Are you running a DHCP server on your gateway to the internet? No, good. All you need to do is set your computers IP, hostname, domainname (i think thats it).
I dunno if you need the domainname set, but to set it you go into a terminal and type 'domainname mycomputer.poo.local' or whatever you want it to be. I
think it might have to be the same network as your other computers. My computers are all something.master.local (except my external interface to the internet because I'm on cable).
The hostname can be set by typing 'hostname whatever' in the terminal. I dunno how to set the IP from the terminal.