[dnsdist] Many "NS ." requests

[Stephane Bortzmeyer]

On Tue, Aug 26, 2025 at 02:35:12PM +0200,
 Stephane Bortzmeyer via dnsdist <dnsdist at mailman.powerdns.com> wrote 
 a message of 20 lines which said:

> My resolver suffers under the many "NS ." requests it receives. I

> topQueries(30)
   1  .                                        7906 39.5%

Which is probably not normal.