zone <string> [ <class> ] {

type stub;

allow-query { <address_match_element>; ... };

allow-query-on { <address_match_element>; ... };

check-names ( fail | warn | ignore );

database <string>;

delegation-only <boolean>;

dialup ( notify | notify-passive | passive | refresh | <boolean> );

file <quoted_string>;

forward ( first | only );

forwarders [ port <integer> ] [ dscp <integer> ] { ( <ipv4_address> | <ipv6_address> ) [ port <integer> ] [ dscp <integer> ]; ... };

masterfile-format ( map | raw | text );

masterfile-style ( full | relative );

masters [ port <integer> ] [ dscp <integer> ] { ( <masters> | <ipv4_address> [ port <integer> ] | <ipv6_address> [ port <integer> ] ) [ key <string> ]; ... };

max-records <integer>;

max-refresh-time <integer>;

max-retry-time <integer>;

max-transfer-idle-in <integer>;

max-transfer-time-in <integer>;

min-refresh-time <integer>;

min-retry-time <integer>;

multi-master <boolean>;

transfer-source ( <ipv4_address> | * ) [ port ( <integer> | * ) ] [ dscp <integer> ];

transfer-source-v6 ( <ipv6_address> | * ) [ port ( <integer> | * ) ] [ dscp <integer> ];

use-alt-transfer-source <boolean>;

zone-statistics ( full | terse | none | <boolean> );

};