efa.BSH.RU has no NS records.
NS records for this zone are defined at BSH.RU.
NS records for this zone are defined at BSH.RU.
Question and response
Question
dig efa.BSH.RU. NS
Answer
The response has no answer records.
Authority
bsh.ru. 3600 SOA ns.bsh.ru. noc.bsh.ru. 2026020433 1800 300 2419200 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0