github.com/StackExchange/dnscontrol/v4@v4.11.0/pkg/js/parse_tests/032-reverseip/3.2.1.in-addr.arpa.zone (about)

     1  $TTL 300
     2  1                IN PTR   foo.example.com.
     3  2                IN PTR   bar.example.com.
     4  3                IN PTR   baz.example.com.
     5  4                IN PTR   silly.example.com.
     6  5                IN PTR   willy.example.com.
     7  6                IN PTR   billy.example.com.
     8  7                IN PTR   my.example.com.
     9  8                IN PTR   fair.example.com.
    10  9                IN PTR   lady.example.com.