options {
        listen-on port 53 { 127.0.0.1; };
        listen-on port 53 { 192.168.1.2; };

        directory       "/var/named";
        dump-file       "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        memstatistics-file "/var/named/data/named_mem_stats.txt";
        recursion yes;
        forward first;
        forwarders{
                202.106.0.20;
                202.106.46.151;
        };
};

logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};

zone "." IN {
        type hint;
        file "named.ca";
};

include "/etc/named.rfc1912.zones";
include "named.domain.com";

zone "domain.com" IN {
        type master;
        file "domain.com";
        allow-update { none; };
};

zone "1.168.192.in-addr.arpa" IN {
        type master;
        file "1.168.192.in";
        allow-update { none; };
};
 

$TTL 1D
@       IN SOA  @ dns.domain.com.(
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum

        IN NS dns.domain.com.
        IN MX 10 mail.domain.com.
        IN A 192.168.1.2

dns     IN A 192.168.1.2
www     IN A 192.168.1.2
mail    IN A 192.168.1.5
aaa     IN A 192.168.1.10
bbb     IN A 192.168.1.20
ccc     IN A 192.168.1.30
ddd     IN A 192.168.1.40
eee     IN A 192.168.1.50

$TTL 1D
@       IN SOA  @ dns.domain.com. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        IN NS dns.domain.com.

2       IN      PTR     domain.com.
2       IN      PTR     www.domain.com.
5       IN      PTR     mail.domain.com.
10      IN      PTR     aaa.domain.com.
20      IN      PTR     bbb.domain.com.
30      IN      PTR     ccc.domain.com.
40      IN      PTR     ddd.domain.com.
50      IN      PTR     eee.domain.com.

service named restart