I am using red hat es 4 for configuring my dns server but i have a problem while i am nslookup's my domain i.e. example.com--- for better suggestion here i am gonna post 3 files (named.conf;forward.zone and reverse.zone).

vi /etc/named.conf
//
// a caching only nameserver config
//
controls {
inet 127.0.0.1 allow { localhost; } keys { rndckey; };
};

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

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

zone "localhost" IN {
type master;
file "localhost.zone";
allow-update { none; };
};
zone "0.0.127.in-addr.arpa" IN {
type master;
file "named.local";
allow-update { none; };
};


zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {
type master;
file "named.ip6.local";
allow-update { none; };
};

zone "255.in-addr.arpa" IN {
type master;
file "named.broadcast";
allow-update { none; };
};

zone "example.com" IN {
type master;
file "forward.zone";
allow-update { none; };
};
zone "0.168.192.in-addr.arpa" IN {
type master;
file "reverse.zone";
allow-update { none; };
};

include "/etc/rndc.key";


vi /var/named/chroot/var/named/forward.zone

$TTL 86400
@ IN SOA ns1.example.com. root.example.com.(
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum

@ IN NS ns1.example.com.

@ IN MX 05 smtp.example.com.


@ IN A 192.168.0.1
ns1 IN A 192.168.0.1


www IN CNAME ns1.example.com.




IN AAAA ::1


And last vi /var/named/chroot/var/named/reverse.zone

$TTL 86400
@ IN SOA ns1.example.com. root.example.com. (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum

@ IN NS ns1.example.com.

@ IN MX 05 smtp.example.com.


1 IN PTR @
1 IN PTR ns1.example.com.








IN AAAA ::1


Please help me about this problem....

Hi,

You should either add a $ORIGIN
in your zone file, or replace the "@" in the A records with example.com.
Don't forget to increase serial after editing the zone file.

Regards