Re: Όταν πέφτει ο primary DNS...

[Potamianos Gregory]

http://tools.ietf.org/html/rfc1035

"""
Here a primary name server acquires information about one or more zones
by reading master files from its local file system, and answers queries
about those zones that arrive from foreign resolvers.

The DNS requires that all zones be redundantly supported by more than
one name server.  Designated secondary servers can acquire zones and
check for updates from the primary server using the zone transfer
protocol of the DNS.

"""

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