Dear DNS and DNS-SD experts :)
The Designated Experts for the Underscored and Globally Scoped DNS Node
Names IANA Registry (RFC 8552) received a request to register a new
entry to be used with DNS-SD. See:
https://www.iana.org/assignments/dns-parameters#underscored-globally-scoped-dns-node-names
https://www.rfc-editor.org/info/rfc8552/
The question is, I believe that all DNS-SD entries are under a
parental underscore domain that is not global (eg _xmpp._tcp.local or
_printer._udp.local). As such, I believe entries meant for DNS-SD
are unrelated to the Underscored and Globally Scoped DNS Node
Names IANA Registry and should not (need not?) be registered there.
Or if phrased differently, you wouldn't put DNS-SD entries in your
public forward DNS zone that is hosted on the internet.
That said, there is obviously the possibility of DNS-SD names clashing
too, despite not being a globally scoped dns node name. But perhaps
the Service Name and Transport Protocol Port Number Registry
https://www.iana.org/assignments/service-names-port-numbers?search=dns
would be a better fit for such a registration ?
I also found https://www.dns-sd.org/servicetypes.html but it seems to
be closed in favour of the service-name one.
I am interested in hearing people's view on this.
Paul
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