dns2.it.net has no NS records.
NS records for this zone are defined at it.net.
NS records for this zone are defined at it.net.
Question and response
Question
dig dns2.it.net. NS
Answer
The response has no answer records.
Authority
it.net. 900 SOA dns.it.net. dns.reevodns.it. 2026020501 86400 7200 2592000 900
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0