ns2.comnet-telecom.com has no CNAME records.
Question and response
Question
dig ns2.comnet-telecom.com. NS
Answer
The response has no answer records.
Authority
comnet-telecom.com. 3054 SOA ns1.comnet-telecom.com. ns2.comnet-telecom.com. 2024011601 3600 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0