acl bogusnets { 0.0.0.0/8; 1.0.0.0/8; 2.0.0.0/8; 192.0.2.0/24; 224.0.0.0/3; 10.0.0.0/8; 172.16.0.0/12; 192.168.0.0/16; };
acl our-nets { 64.71.151.0/24; 65.19.176.0/24; 216.218.235.0/24; };

options {
        directory "/etc/namedb";
        pid-file "/var/run/named/pid";
        listen-on { 65.19.176.231; };   
        allow-recursion { our-nets; };
        blackhole { bogusnets; };