multicast DNS

Multicast DNS (mDNS) is a network protocol that allows devices on the same local network to discover each other's names and services without needing a central DNS server. When a device joins the network, it announces its presence and capabilities, such as printers or other services, by broadcasting small messages to all other devices. This enables seamless device identification and communication within the local network, making setups like home or office environments more user-friendly by automatically recognizing devices without manual configuration.