rdns1.metrocomm.com has no CNAME records.
Question and response
Question
dig rdns1.metrocomm.com. NS
Answer
The response has no answer records.
Authority
metrocomm.com. 3600 SOA adns1.metrocomm.com. admin.metrocomm.com. 2026022730 3600 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0