zone string [ class ] { type static-stub; allow-query { address_match_element; ... }; allow-query-on { address_match_element; ... }; forward ( first | only ); forwarders [ port integer ] [ dscp integer ] { ( ipv4_address | ipv6_address ) [ port integer ] [ dscp integer ]; ... }; max-records integer; server-addresses { ( ipv4_address | ipv6_address ) [ port integer ]; ... }; server-names { quoted_string; ... }; zone-statistics ( full | terse | none | boolean ); };