mboss-drac.isi.deterlab.net has no CNAME records.
Question and response
Question
dig mboss-drac.isi.deterlab.net. NS
Answer
The response has no answer records.
Authority
isi.deterlab.net. 1 SOA isi.deterlab.net. root.isi.deterlab.net. 2020020200 1800 900 3600000 1
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0