>I've come across a configuration "in the wild" where a given zone >'z' contains both >a.z. NS some.name.server. >*and* >sub.a.z. NS some.other.name.server.
You're right, it's a mistake, but it is not my impression that registries make many semantic checks on the DNS records that their clients ask them to publish, since the range of errors is endless. So the response to a.z is "don't do that." R's, John _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
