relay2.yaroslavl.ru has no NS records.
NS records for this zone are defined at yaroslavl.ru.
NS records for this zone are defined at yaroslavl.ru.
Question and response
Question
dig relay2.yaroslavl.ru. NS
Answer
The response has no answer records.
Authority
yaroslavl.ru. 300 SOA ns.innet.yaroslavl.su. hostmaster.innet.yaroslavl.su. 2147488568 21600 10800 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0