192.168.192.in-addr.arpa. IN SOA sarah.supersparrow. domains.supersparrow. ( 2000092600 ;serial (version) 3600 ;refresh period 900 ;retry refresh this often 604800 ;expiration period 3600 ;minimum TTL ) IN NS sarah.supersparrow. IN NS stenchie.supersparrow. 10 IN PTR sarah.supersparrow. 13 IN PTR jasmine.test.supersparrow.