1$TTL    86400                                    ; 24 hours
2$ORIGIN 0.0.127.IN-ADDR.ARPA.
3
40.0.127.IN-ADDR.ARPA.   86400   IN  SOA localhost. root.localhost.  (
5                                        20120201 ; Serial
6                                        3h       ; Refresh
7                                        15       ; Retry
8                                        1w       ; Expire
9                                        3h       ; Minimum
10                                       )
11            86400   IN  NS      localhost.
121           86400   IN  PTR     localhost.
13