NS2.BNNIC.BN has no CNAME records.
Question and response
Question
dig NS2.BNNIC.BN. NS
Answer
The response has no answer records.
Authority
bnnic.bn. 4994 SOA ns104.brunet.bn. dcit-cloudops.unn.com.bn. 2026010701 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0