Non-improving referral

[Gabi Nakibly]

Hi,
I would like to set up a new temporary nameserver for my zone (say '
example.com'), however for various reasons I prefer not to change the
delegation of my parent zone ('.com'). So I need the current name server ('
ns.example.com') to refer resolvers to my new temporary name server ('
ns-temp.example.com'). However, when I tried to test this set-up with a
BIND resolver, when the resolver got the delegation to the temporary name
server it failed with 'non-improving referral'.
How can I resolve this so the delegation will work for a BIND resolver
having default config (or with any other resolver for that matter)? I know
that I can simply update delegation at the parent zone to point directly to
the new name server, but I prefer not to do this right now and I am looking
for ways to do this without changing the parent delegation.
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