Distributed Name Service (DNS) Management Programming Manual

Glossary
Glossary–20 46958 Tandem Computers Incorporated
Validation. Verification for conformity with a rule or policy. In the case of DNS, the
process of verifying that a particular string fulfills all requirements for a legal DNS
name.
Version compatibility. The ability of a requester and server of different revision levels to
operate gracefully together.
Version number. A 16-bit integer representation of a software release version. For
Tandem subsystems, this consists of an uppercase alphabetic character in its left half
and a number in its right half.
Warning. A condition, encountered in performing a command or other operation, that
can be significant, but does not cause the command or operation to fail. A warning is
less serious than an error. Compare with Error.
Write authority. The ability to update a file; in the case of DNS, the security attribute
value required to update the DNS database.
$ZDNS. The default name of the DNS name manager process.
$ZDNX. The default name of the DNS name exporter process.