Dnsmasq (lightweight DNS and DHCP server)

Dnsmasq is lightweight, easy to configure DNS forwarder and DHCP
server. It is designed to provide DNS and, optionally, DHCP, to a 
small network. It can serve the names of local machines which are 
not in the global DNS. The DHCP server integrates with the DNS 
server and allows machines with DHCP-allocated addresses to appear
in the DNS with names configured either in each host or in a central
configuration file. Dnsmasq supports static and dynamic  DHCP leases
and BOOTP for network booting of diskless machines

Author : Simon Kelley <simon@thekelleys.org.uk>
License: GNU GPL
Website: http://www.thekelleys.org.uk/dnsmasq/
