/etc/named/conf

//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//

options {
        listen-on port 53 { any; };
        listen-on-v6 port 53 { any; };
        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";
        allow-query     { localhost; };
        recursion yes;

        dnssec-enable yes;
        dnssec-validation yes;
        dnssec-lookaside auto;

        /* Path to ISC DLV key */
        bindkeys-file "/etc/named.iscdlv.key";
};

logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};
#The followingzone definitions don't need any modification. the first one
#is the definition of the root name servers and sets up our server as a
#caching-capable DNS server.
#the second one defines localhost.
#the third zone definition defines the reverse lookup for localhost.
#
#
zone "." IN {
        type hint;
        file "root.hints";
};
zone "localhost" in {
        type master;
        file "localhost.db";
};
zone "0.0.127.in-addr.arpa" in {
        type master;
        file "127.0.0.rev";
};
#the zone definition below is for the domain that our name server is
#authoritative for i.e. the example.org domain name.
#
zone "example.org" {
        type master;
        file "example.org.db";
};
#below is the zone for the in-addr.arpa domain, for the example.org site.
zone "15.2.0.10.in-addr.arpa" {
        type master;
        file "example.org.rev";
};
#BELOW IS THE ENTRy FOR THE SUB-DOMAIN FOR WhICH THIS SERvER IS A SLAVE SERVER
#ip address of sales.example.orgs master server is 192.168.1.2
zone "sales.example.org" {
        type slave;
        file "sales.example.org.bk";
        masters {10.0.2.16;};
};