logging {
  # channel default {
  #   file "/data/log/dns/default.log";
  #   severity debug;
  #   print-category yes;
  #   print-severity yes;
  #   print-time yes;
  #   };
  # category lame-servers {
  #   default;
  #   };
  # category dispatch {
  #   default;
  #   };
  # category network {
  #   default;
  #   };
  # category unmatched {
  #   default;
  #   };
  # category client {
  #   default;
  #   };
  # category resolver {
  #   default;
  #   };
  # category config {
  #   default;
  #   };
  # category database {
  #   default;
  #   };
  # category general {
  #   default;
  #   };
  # category default {
  #   default;
  #   };

  channel security {
    file "/data/log/dns/default.log";
    severity dynamic;
    print-severity yes;
    print-time yes;
    };
  category security {
    security;
    };
  category dnssec {
    security;
    };

  channel xfer-in {
    file "/data/log/dns/default.log";
    severity info;
    print-category yes;
    print-severity yes;
    print-time yes;
    };
  category xfer-in {
    xfer-in;
    };
  channel xfer-out {
    file "/data/log/dns/default.log";
    severity info;
    print-category yes;
    print-severity yes;
    print-time yes;
    };
  category xfer-out {
    xfer-out;
    };

  channel update {
    file "/data/log/dns/default.log";
    severity info;
    print-category yes;
    print-severity yes;
    print-time yes;
    };
  category update {
    update;
    };

  channel notify {
    file "/data/log/dns/default.log";
    severity info;
    print-category yes;
    print-severity yes;
    print-time yes;
    };
  category notify {
    notify;
    };

  channel querylog {
    file "/data/log/dns/default.log";
    severity info;
    print-time yes;
    };
  category queries {
    querylog;
    };
};