Question and response
Question
dig b.ns.admin.sardinasystems.com. PTR
Answer
The response has no answer records.
Authority
admin.sardinasystems.com. 60 SOA a.ns.admin.sardinasystems.com. hostmaster.admin.sardinasystems.com. 1771749933 300 60 604800 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0