Periodic
From: https://www.zytrax.com/books/dns/ch7/periodic.html#cleaning-interval
DNS BIND Periodic (Time controlled) Statements
This section describes all the statements available in BIND 9.x relating to
Periodic (Time controlled) operations. NOTE: All the time values are in MINUTES.
The full list of statements.
cleaning-interval
cleaning-interval minutes;
cleaning-interval defines the time in MINUTES when all expired records will be
deleted. The default is 60 (1 hour), if specified as 0 NO cleaning will be
performed. The maximum value is 40320 (28 days). This statement may be used in
a view or a global options clause.
heartbeat-interval
heartbeat-interval minutes;
heartbeat-interval defines the time in MINUTES when zones marked as dialup are
updated. The default is 60 (1 hour), if specified as 0 NO updating will be
performed. The maximum value is 40320 (28 days). This statement may be used in
a view or a global options clause.
interface-interval
interface-interval minutes;
interface-interval defines the time in MINUTES when scan all interfaces on the
server and will begin to listen on new interfaces (assuming they are not
prevented by a listen-on option) and stop listening on interfaces which no
longer exist. The default is 60 (1 hour), if specified as 0 NO interface scan
will be performed. The maximum value is 40320 (28 days). This option may only be
specified in a 'global' options statement.
statistcs-interval
statistics-interval number;
statistics-interval is NOT YET IMPLEMENTED IN BIND 9.
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