resolved and dns-sd

Some quick notes about how to resolve dns-sd services with resolved. This is mostly handy for scripting things like chromecast lookups without having to have avahi and such installed.

λ bin » resolvectl --type=PTR query _googlecast._tcp.local
_googlecast._tcp.local IN PTR Chromecast-Ultra-e6437103e5d642323014c80ddffc76dc._googlecast._tcp.local -- link: enp0s31f6