ob1123.obcity.ru has no NS records.
NS records for this zone are defined at obcity.ru.
NS records for this zone are defined at obcity.ru.
Question and response
Question
dig ob1123.obcity.ru. NS
Answer
The response has no answer records.
Authority
obcity.ru. 10800 SOA ns.obcity.ru. ns1.obcity.ru. 2012020920 43200 3600 1209600 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0