Open-source implementation of Multicast DNS for Zeronconf networking, similar to Apple's Bonjour.
Avahi is an Implementation of the DNS Service Discovery and Multicast DNS specifications for Zeroconf Networking. It uses D-Bus for communication between user applications and a system daemon. The daemon is used to coordinate application efforts in caching replies, necessary to minimize the traffic imposed on networks. Compatible technology is found in Apple MacOS X (branded Bonjour and sometimes Zeroconf).