; ; /var/named/SUB8.2.0.192.in-addr.arpa.rev ; < example.jp > IP Address to Host Reverse Information ; $TTL 86400 @ IN SOA ns1.example.jp. postmaster.example.jp. ( 2000110701 ; Serial 86400 ; Refresh after 1 day 10800 ; Retry after 3 hours 2419200 ; Expire after 4 weeks 3600 ; Minimum TTL of 1 hour ) IN NS ns1.example.jp. IN NS ns2.sphere.ad.jp. ; Host Information ================================================================== 10 IN PTR ns1.example.jp. 11 IN PTR www.example.jp.