centaur.outserv.net has no CNAME records.
Question and response
Question
dig centaur.outserv.net. NS
Answer
The response has no answer records.
Authority
outserv.net. 1800 SOA ns1.outserv.net. dns-admin.outserv.net. 2026012215 21600 3600 604800 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0