; <<>> DiG 9.8.3-P1 <<>> -x IP_ADDRESS
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41339
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;IP_ADDRESS.in-addr.arpa. IN PTR
;; AUTHORITY SECTION...