[root@frozen][/etc/namedb] $ cat domains/171.152.66.in-addr.arpa
$TTL 4000

@     IN     SOA    ns1.magicshells.com.     root.magicshells.com.com. (
                    2001063000 ; serial
                    21600      ; refresh after 6 hours
                    3600       ; retry after 1 hour
                    604800     ; expire after 1 week
                    86400 )    ; minimum TTL of 1 day

        IN     NS     ns1.magicshells.com.
        IN     NS     ns2.magicshells.com.
        IN     MX 10  mail.magicshells.com.

$ORIGIN 171.152.66.in-addr.arpa.

2       IN      PTR     frozen.magicshells.com.
3       IN      PTR     ns1.magicshells.com.
4       IN      PTR     ns2.magicshells.com.
6       IN      PTR     www.magicshells.com.
7       IN      PTR     mail.magicshells.com.
10      IN      PTR     unixhacker.net.