An example of complete zone file

"localhost" zone: "localhost.zone"
    $TTL 1D
    @           IN      SOA     localhost.      root.jinmei.org. (
                                1               ; serial
                                3600            ; refresh
                                300             ; retry
                                3600            ; expire
                                3600 )          ; minimum
                IN      NS      localhost.
    localhost.  IN      A       127.0.0.1
                IN      AAAA    ::1
Corresponding named.conf file
    zone "localhost" {
        type master;
        file "localhost.zone";
    };