"There you are on your small home LAN, or small business, feeling ignored by the Linux world. You want to take advantage of nice labor-saving tools like DHCP (dynamic host configuration protocol) and DNS (domain name system), but it feels like only uber-geeks need apply.
"Feel ignored no more, for there is an excellent DNS/DHCP utility for real people: Dnsmasq. Dnsmasq is especially suited for small networks that share a single Internet connection, behind a NAT firewall. Creative admins will find all sorts of ways to put Dnsmasq to work; this article will focus on simple local DNS and DHCP..."