2.10. The multicast DNS protocol
You can use the multicast DNS protocol (mDNS) to allow name resolution and service discovery within a Local Area Network (LAN) using multicast exposed on the 5353/UDP port.
MicroShift includes an embedded mDNS server for deployment scenarios in which the authoritative DNS server cannot be reconfigured to point clients to services on MicroShift. The embedded DNS server allows .local domains exposed by MicroShift to be discovered by other elements on the LAN.