Bonjour
$ dns-sd --help
dns-sd: illegal option -- -
dns-sd -E (Enumerate recommended registration domains)
dns-sd -F (Enumerate recommended browsing domains)
dns-sd -R <Name> <Type> <Domain> <Port> [<TXT>...] (Register a service)
dns-sd -P <Name> <Type> <Domain> <Port> <Host> <IP> [<TXT>...] (Register Proxy)
dns-sd -B <Type> <Domain> (Browse for service instances)
dns-sd -Z <Type> <Domain> (Output results in Zone File format)
dns-sd -L <Name> <Type> <Domain> (Resolve (‘lookup’) a service instance)
dns-sd -Q <name> <rrtype> <rrclass> (Generic query for any record type)
dns-sd -q <name> <rrtype> <rrclass> (Generic query, using SuppressUnusable)
dns-sd -G v4/v6/v4v6 <hostname> (Get address information for hostname)
dns-sd -X udp/tcp/udptcp <IntPort> <ExtPort> <TTL> (NAT Port Mapping)
dns-sd -H (Print usage for complete command list)
dns-sd -V (Get version of currently running daemon / system service)
dns-sd -O [-compress|-stdout](Dump the state of mDNSResponder to file / STDOUT)
dns-sd -Z _airplay._tcp
dns-sd -Z _raop._tcp
