db.0

   1 ;
   2 ; BIND reverse data file for broadcast zone
   3 ;
   4 $TTL    604800
   5 @       IN      SOA     localhost. root.localhost. (
   6                               1         ; Serial
   7                          604800         ; Refresh
   8                           86400         ; Retry
   9                         2419200         ; Expire
  10                          604800 )       ; Negative Cache TTL
  11 ;
  12 @       IN      NS      localhost.