ns2.vf-host.com has no CNAME records.
Question and response
Question
dig ns2.vf-host.com. NS
Answer
The response has no answer records.
Authority
vf-host.com. 2874 SOA ns2.vf-host.com. hostmaster.vf-host.com. 2023042007 3600 840 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0