nss.sm.ua has no NS records.
NS records for this zone are defined at sm.ua.
NS records for this zone are defined at sm.ua.
Question and response
Question
dig nss.sm.ua. NS
Answer
The response has no answer records.
Authority
sm.ua. 1800 SOA ho1.eunic.net.ua. info.eunic.net.ua. 2603171215 3600 1800 1814400 1800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0