linux397.unoeuro.com has no CNAME records.
Question and response
Question
dig linux397.unoeuro.com. NS
Answer
The response has no answer records.
Authority
unoeuro.com. 3600 SOA ns1.simply.com. hostmaster.simply.com. 2025080500 14400 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0