More information: Linux Newbie Administrator Guide at http://linux-newbie.sunsite.dk/
Example:
NETWORKING = yes ; Enables networking;
HOSTNAME = test ; Host name;
GATEWAY = 10.0.0.10 ; Default gateway IP address;
/etc/hosts: includes addresses and hostnames and aliases mapping, i.e.:
127.0.0.1 localhost.localdomainlocalhost;
10.0.0.22 test.mydomain.it test prova;