Host180-DNS-Update6-brin.do.pc2linux.com has no CNAME records.
Question and response
Question
dig Host180-DNS-Update6-brin.do.pc2linux.com. NS
Answer
The response has no answer records.
Authority
do.pc2linux.com. 9906 SOA do.pc2linux.com. asampau.gmail.com. 2026030423 360 180 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0