named.conf.options

acl "trusted" {
#       127.0.0.1;
        10.8.0/24;
#       10.8.1.0/24;
};

options {
        directory "/var/cache/bind";

        recursion yes;                 # enables resursive queries
        allow-recursion { trusted; };  # allows recursive queries from "trusted" clients
#       listen-on { 127.0.0.1; };   # ns1 private IP address - listen on private network only
        listen-on { 10.8.0/24 };
        allow-transfer { none; };      # disable zone transfers by default

        forwarders {
                8.8.8.8;
                8.8.4.4;
        };
};