But, is this behaviour consistent with other DNS software (microsoft DNS
etc.), or is this specific only to BIND9?
Is there any standard / documentation that explain how or why is this
happening? Because it just doesn't make any sense to me.
On 11/02/2020 14:39, Tony Finch wrote:
Petr Bena <petr@bena.rocks> wrote:
Why is this? Is that normal or a bug?
It's because wildcards in the DNS are crazy and totally abnormal, but
sadly ossified tradition means it cannot be considered a bug. (It's also
intimately tied up with the subtle semantics of NXDOMAIN, and rigidly
enforced by DNSSEC.) It's annoying because it makes wildcards a lot less
useful than one might hope.
https://tools.ietf.org/html/rfc4592 - The Role of Wildcards in the Domain Name
System.
https://tools.ietf.org/html/rfc8020 - NXDOMAIN: There Really Is Nothing
Underneath.
Tony.
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