great site for linux based homenetworking
pretty much of it.
Just to add one more trick about how to have a static intranet ip address:
vi /etc/sysconfig/networking/devices/ifcfg-eth0 (or other device name)
DHCP=’no’
IPADDR=’192.168.0.x’
NETMASK=’255.255.255.0′
GATEWAY=’192.168.0.1′