mail.AGASTONE.RU has no NS records.
NS records for this zone are defined at AGASTONE.RU.
NS records for this zone are defined at AGASTONE.RU.
Question and response
Question
dig mail.AGASTONE.RU. NS
Answer
The response has no answer records.
Authority
AGASTONE.RU. 10800 SOA ns1.reg.RU. hostmaster.ns1.reg.RU. 1750769939 14400 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0