Limitations
Though it is standardized, full-zone transfer being described as one of the possible database replication mechanisms in RFC 1034 (incremental zone transfer described in RFC 1995), zone transfer is the most limited of those database replication mechanisms. Zone transfer operates in terms of "wire format" resource records, i.e. resource records as they are transferred using the DNS protocol. However, the schema of wire format resource records may not match the database schema used by the back ends of the DNS servers themselves.
Read more about this topic: DNS Zone Transfer
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“... art transcends its limitations only by staying within them.”
—Flannery O’Connor (1925–1964)
“Growing up means letting go of the dearest megalomaniacal dreams of our childhood. Growing up means knowing they can’t be fulfilled. Growing up means gaining the wisdom and skills to get what we want within the limitations imposed by reality—a reality which consists of diminished powers, restricted freedoms and, with the people we love, imperfect connections.”
—Judith Viorst (20th century)