n58-104-64-68.mrk2.qld.optusnet.com.au has no CNAME records.
Question and response
Question
dig n58-104-64-68.mrk2.qld.optusnet.com.au. NS
Answer
The response has no answer records.
Authority
qld.optusnet.com.au. 2431 SOA ns1.syd.optusnet.com.au. hostmaster.optusnet.com.au. 2024102600 3600 1800 360000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0