dat.redcom.ru has no NS records.
NS records for this zone are defined at redcom.ru.
NS records for this zone are defined at redcom.ru.
Question and response
Question
dig dat.redcom.ru. NS
Answer
The response has no answer records.
Authority
redcom.ru. 86400 SOA ns.redcom.ru. hostmaster.redcom.ru. 2026021801 28800 3600 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0