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C H A P T E R 2 Definitions
15
Primary 7190 is a 7190 that automatically transfers (copies)
configuration information to secondary 7190s (through the Global
Sync process). Configuration may only be changed on a Primary
7190.
Service is the Virtual IP (VIP) and port number of an application
service available at a site.
Authoritative Server is a DNS name server that has complete name
space information regarding the hosts within a given zone (see
below).
Authority is an attribute of a DNS name server with respect to a
specific part of the DNS name space, or zone (see below). A name
server is said to have authority over a zone, by which that server has
complete name space information for that zone.
Zone is a portion of a DNS name space for which a given name server
has complete name space information. When a name server receives
a request for a host outside of its zone, it replies with the name of the
name server that is authoritative for a different zone and is likely to
have the specific information required to satisfy the request.