1zone <string> [ <class> ] { 2 type stub; 3 allow-query { <address_match_element>; ... }; 4 allow-query-on { <address_match_element>; ... }; 5 check-names ( fail | warn | ignore ); 6 database <string>; 7 dialup ( notify | notify-passive | passive | refresh | <boolean> ); // deprecated 8 file <quoted_string>; 9 forward ( first | only ); 10 forwarders [ port <integer> ] [ tls <string> ] { ( <ipv4_address> | <ipv6_address> ) [ port <integer> ] [ tls <string> ]; ... }; 11 masterfile-format ( raw | text ); 12 masterfile-style ( full | relative ); 13 max-records <integer>; 14 max-records-per-type <integer>; 15 max-refresh-time <integer>; 16 max-retry-time <integer>; 17 max-transfer-idle-in <integer>; 18 max-transfer-time-in <integer>; 19 max-types-per-name <integer>; 20 min-refresh-time <integer>; 21 min-retry-time <integer>; 22 multi-master <boolean>; 23 primaries [ port <integer> ] [ source ( <ipv4_address> | * ) ] [ source-v6 ( <ipv6_address> | * ) ] { ( <remote-servers> | <ipv4_address> [ port <integer> ] | <ipv6_address> [ port <integer> ] ) [ key <string> ] [ tls <string> ]; ... }; 24 transfer-source ( <ipv4_address> | * ); 25 transfer-source-v6 ( <ipv6_address> | * ); 26 zone-statistics ( full | terse | none | <boolean> ); 27}; 28