zone-statistics <replaceable>boolean</replaceable>;
key-directory <replaceable>quoted_string</replaceable>;
managed-keys-directory <replaceable>quoted_string</replaceable>;
- auto-dnssec <constant>allow</constant>|<constant>maintain</constant>|<constant>create</constant>|<constant>off</constant>;
+ auto-dnssec <constant>allow</constant>|<constant>maintain</constant>|<constant>off</constant>;
try-tcp-refresh <replaceable>boolean</replaceable>;
zero-no-soa-ttl <replaceable>boolean</replaceable>;
zero-no-soa-ttl-cache <replaceable>boolean</replaceable>;