How to define a name with an empty RRset?

[Alessandro Vesely]

Hi all,

the doc says each node has a set of resource information, which may be empty.
But how do I create such a node? If I just write, say:

an-emty-name.example.com.

named-checkzone complains about unexpected end of input.

NULL is not usable in master files. For the time being, I try:

an-emty-name.example.com. IN RP . .

However, querying ANY reveals that the name is not actually empty.

Is there a specific syntax to create an empty name?


Best
Ale
--

[Ondřej Surý]

Hi,

to create a empty non-terminal (ENT) you should do:

non-empty.an-empty-name.example.com. IN TXT <data>

Ondrej
--
Ondřej SurÃœ

Post by Alessandro Vesely
Hi all,
the doc says each node has a set of resource information, which may be empty.
an-emty-name.example.com.
named-checkzone complains about unexpected end of input.
an-emty-name.example.com. IN RP . .
However, querying ANY reveals that the name is not actually empty.
Is there a specific syntax to create an empty name?
Best
Ale
--
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[Alessandro Vesely]

Great!

Thank you Ondrej

Ale

Post by Ondřej Surý
Hi,
non-empty.an-empty-name.example.com. IN TXT <data>
Ondrej
--
Ondřej Surý

Post by Alessandro Vesely
Hi all,
the doc says each node has a set of resource information, which may be empty.
an-emty-name.example.com.
named-checkzone complains about unexpected end of input.
an-emty-name.example.com. IN RP . .
However, querying ANY reveals that the name is not actually empty.
Is there a specific syntax to create an empty name?
Best
Ale
--
_______________________________________________
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list
bind-users mailing list
https://lists.isc.org/mailman/listinfo/bind-users

[Scott Morizot]

Post by Alessandro Vesely
Hi all,
the doc says each node has a set of resource information, which may be
empty.
an-emty-name.example.com.

I believe that's a reference to empty non-terminals. If you created, for
instance, an AAAA record for

new-server.an-empty-name.example.com

in the example.com zone and there were no entries specifically for
an-empty-name.example.com, the node an-empty-name.example.com would exist
in DNS, because it's part of the AAAA resource record,
new-server.an-empty-name.example.com, but would have no resource records
associated with it. So a query for any resource record type for the name
an-empty-name.example.com would return a NOERROR response with 0 answers.

HTH,

Scott