In a sense, a glue record with the same owner name as a zone cut could be
equivalent to a glue record with an owner name that is subordinate to a zone
cut. I don't have enough of the spec in my head to know why they would
definitively be different from the protocol perspective. I realise it's not
normal, but I don't know that it's prohibited.
I definitely don't know operationally how different DNS or registrar software
implementations treat that case. I don't think the registry systems I'm
familiar with allow host and domain objects with the same name to coexist, but
I realise I could quite well be wrong.
I'm pretty sure I've never seen it in any TLD file.
Regards,
John Levine, jo...@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly
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