[rbldnsd] recursive query question (OT)

[Chris.]

Greetings,
 While I'm sure it's possible. I can't for the life of me figure how to construct the query.
The query I'm attempting to make is to retrieve the list of domains a name server is NS for.
For example, if I wanted to retrieve the list of domains ns.example.com was NS for. How would I construct the query?

Thank you all very much for all your time and consideration, and apologies for being somewhat Off Topic.

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