Install avahi-utils by entering the following commands in the terminal:
sudo apt update sudo apt install avahi-utils
Avahi browsing, publishing and discovery utilities
Avahi is a fully LGPL framework for Multicast DNS Service Discovery. It allows programs to publish and discover services and hosts running on a local network with no specific configuration. For example you can plug into a network and instantly find printers to print to, files to look at and people to talk to. . This package contains several utilities that allow you to interact with the Avahi daemon, including publish, browsing and discovering services.