Bind 9 Administrator Reference Manual

Chapter 6. BIND 9 Configuration Reference
key_id A domain_name representing the name of a shared
key, to be used for transaction security.
key_list A list of one or more key_ids, separated by semicolons
and ending with a semicolon.
number A non-negative 32 bit unsigned integer (i.e., a number between 0
and 4294967295, inclusive). Its acceptable value might further be
limited by the context in which it is used.
path_name A quoted string which will be used as a pathname, such as
zones/master/my.test.domain.
size_spec A number, the word unlimited, or the word
default.
An unlimited size_spec requests unlimited use,
or the maximum available amount. A default
size_spec uses the limit that was in force when
the server was started.
A number can optionally be followed by a
scaling factor: K or k for kilobytes, M or m for
megabytes, and G or g for gigabytes, which scale
by 1024, 1024*1024, and 1024*1024*1024
respectively.
The value must be representable as a 64-bit
unsigned integer (0 to 18446744073709551615,
inclusive). Using unlimited is the best way to
safely set a really large number.
yes_or_no Either yes or no. The words true and false are
also accepted, as are the numbers 1 and 0.
dialup_option One of yes, no, notify, notify-passive,
refresh or passive. When used in a zone,
notify-passive, refresh, and passive are
restricted to slave and stub zones.
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