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 {
   #   # FRITZ!Box
   #   #
   #   172.16.63.254;
   #};

   //========================================================================
   // If BIND logs error messages about the root key being expired,
   // you will need to update your keys.  See https://www.isc.org/bind-keys
   //========================================================================
   dnssec-validation auto;

   auth-nxdomain no;    # conform to RFC1035

   // Security options
   #listen-on port 53 {
   #   127.0.0.1;
   #   192.168.63.1;
   #   fd5c:45d3:2a6e:1:ec4:7aff:feac:5ecf;
   #   #172.16.102.254;
   #};

   allow-query {
      127.0.0.1;
      192.168.0.0/16;
      10.0.0.0/8;
      172.16.0.0/16;
      fe80::/8;
      fd5c:45d3:2a6e:1::/64;
      ::1/128;
   };

   // caching name services
   recursion yes;
   allow-recursion {
      127.0.0.1;
      192.168.0.0/16;
      10.0.0.0/16;
      172.16.0.0/16;
      fd5c:45d3:2a6e:1::/64;
      fe80::/8;
      ::1/128;
   };

   allow-transfer { none; };

   #listen-on-v6 { 
   #   ::1;
   #   fd5c:45d3:2a6e:1:ec4:7aff:feac:5ecf;
   #};

};

logging {
   channel simple_log {
      file "/var/log/named/bind.log" versions 3 size 5m;
      //severity warning;
      severity info;
      print-time yes;
      print-severity yes;
      print-category  yes;
   };
   channel queries_log {
      file "/var/log/named/query.log" versions 10 size 5m;
      severity debug;
      //severity notice;
      print-time yes;
      print-severity yes;
      print-category no;
   };
   channel log_zone_transfers {
      file "/var/log/named/axfr.log" versions 5 size 2m;
      severity info;
      print-time yes;
      print-severity yes;
      print-category yes;
   };
   category resolver {
      queries_log;
   };
   category queries {
      queries_log;
   };
   category xfer-in {
      log_zone_transfers;
   };
   category xfer-out {
      log_zone_transfers;
   };
   category notify {
      log_zone_transfers;
   };
   category default{
      simple_log;
   };
};