A stub zone is like a slave zone, except that it replicates only the NS records of a master zone instead of the entire zone. The initial set of root nameservers is specified using a hint zone. When the server starts up, it uses the root hints to find a root nameserver and get the most recent list of root nameservers. Class The zone's name may optionally be followed by a class. If a class is not specified, class in is used.
Options check-names See Name Checking .
The default is to deny updates from all hosts. See the description of notify in the Boolean Options section. The default is the empty list.