monitor.ankas.ru has no NS records.
NS records for this zone are defined at ankas.ru.
NS records for this zone are defined at ankas.ru.
Question and response
Question
dig monitor.ankas.ru. NS
Answer
The response has no answer records.
Authority
ankas.ru. 3600 SOA ns1.ihc.ru. info.ihc.ru. 2017051501 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0