DNS2mDNS bridges traditional DNS queries with multicast DNS (mDNS) resolution for .local hostnames. The service allows devices that don’t natively support mDNS, such as many Android devices and Windows systems, to resolve local network hostnames through standard DNS queries.
The Go implementation acts as a DNS server that intercepts queries for .local domains and forwards them to the mDNS system, then returns the results via standard DNS responses. This enables seamless local hostname resolution across mixed network environments with Docker deployment support.