ns.quantum.RU has no NS records.
NS records for this zone are defined at quantum.RU.
NS records for this zone are defined at quantum.RU.
Question and response
Question
dig ns.quantum.RU. NS
Answer
The response has no answer records.
Authority
quantum.RU. 86400 SOA ns.quantum.RU. regadmin.quantum.RU. 20240001 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0