iris-dce01.jhb.cloud.is.co.za has no CNAME records.
Question and response
Question
dig iris-dce01.jhb.cloud.is.co.za. NS
Answer
The response has no answer records.
Authority
cloud.is.co.za. 8718 SOA ns1.is.co.za. support.is.co.za. 2021091301 86400 14400 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0