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).