named.conf.options

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

  // If there is a firewall between you and nameservers you want
  // to talk to, you may need to fix the firewall to allow multiple
  // ports to talk.  See http://www.kb.cert.org/vuls/id/800113

  // If your ISP provided one or more IP addresses for stable 
  // nameservers, you probably want to use them as forwarders.  
  // Uncomment the following block, and insert the addresses replacing 
  // the all-0's placeholder.

  // forwarders {
  //   0.0.0.0;
  // };

  // filter-aaaa-on-v4 yes;

  max-ncache-ttl 120;
  max-cache-ttl 3600;
  recursive-clients 1000;
  cleaning-interval 60;
  lame-ttl 600;
  max-cache-size unlimited;

  auth-nxdomain no;    # conform to RFC1035
  listen-on-v6 { any; };
  allow-query { any; };
  allow-transfer {
    127.0.0.1;
    192.168.1.0/24;
  };

  forward only;
  forwarders {
    129.250.35.250;
    129.250.35.251;
    210.130.1.1;
    210.130.0.1;
  };
};