unit.nmugroup.com.
Question and response
Question
dig 210.208-28.116.10.217.in-addr.arpa. PTR
Answer
210.208-28.116.10.217.in-addr.arpa. 518400 PTR unit.nmugroup.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0