zone revision ed12ab17de6d192fd46914be8dc55fb573470664
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews $Id: zone,v 1.1 1999/02/25 05:15:42 marka Exp $
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews Zones are the unit of delegation in the DNS and may go from holding
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews RR's only at the zone top to holding the complete hierachy (private
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews roots zones). Zones are a container for the RRsets that make up the
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews Zone have certain properties associated with them.
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * master / slave / stub
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * serial number
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * signed / unsigned
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * update periods (refresh / retry)
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * last update time (slave)
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * access restrictions
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * transfer restrictions
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * expire period
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * children => bottom
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * transfer "in" in progress
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * transfers "out" in progress
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * "current" check in progress
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * our masters
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews Zones also have versions associated with them, each of which, with
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews the exception of the current zone, has an expiry date.
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews Zones need to have certain operations performed on them. The need to
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * copied out in full or as partial deltas
ed12ab17de6d192fd46914be8dc55fb573470664Mark Andrews * generate a delta between two given versions.