Something

options {
        directory "/var/cache/bind";
        listen-on-v6 {
                "any";
        };
        auth-nxdomain no;
        provide-ixfr no;
};
zone "holisticmanagement.org" {
        type master;
        file "/etc/bind/db.holisticmanagement.org";
        allow-transfer {
                195.234.42.0/24;
                193.218.105.144/28;
                87.98.164.164/32;
                88.191.64.64/32;
                92.243.14.172/32;
                67.41.4.26/32;
                174.37.196.55/32;
        };
};
zone "." {
        type hint;
        file "/etc/bind/db.root";
};
zone "localhost" {
        type master;
        file "/etc/bind/db.local";
};
zone "127.in-addr.arpa" {
        type master;
        file "/etc/bind/db.127";
};
zone "0.in-addr.arpa" {
        type master;
        file "/etc/bind/db.0";
};
zone "255.in-addr.arpa" {
        type master;