dns.cnmsn.net has no CNAME records.
Question and response
Question
dig dns.cnmsn.net. NS
Answer
The response has no answer records.
Authority
cnmsn.net. 298 SOA dns.bizcn.com. abuse.bizcn.com. 26 28800 14400 14400 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0