Red Hat DIRECTORY SERVER 7.1, Installation Manual

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Glossary 77
MD5
A message digest algorithm by RSA Data Security, Inc., which can be used to produce a short di-
gest of data that is unique with high probability and is mathematically extremely hard to produce;
a piece of data that will produce the same message digest.
MD5 signature
A message digest produced by the MD5 algorithm.
MIB
Management Information Base. All data, or any portion thereof, associated with the SNMP net-
work. We can think of the MIB as a database which contains the definitions of all SNMP man-
aged objects. The MIB has a tree-like hierarchy, where the top level contains the most general
information about the network and lower levels deal with specific, separate network areas.
MIB namespace
Management Information Base namespace. The means for directory data to be named and refer-
enced. Also called the directory tree.
monetary format
Specifies the monetary symbol used by specific region, whether the symbol goes before or after
its value, and how monetary units are represented.
multi-master replication
An advanced replication scenario in which two servers each hold a copy of the same read-write
replica. Each server maintains a changelog for the replica. Modifications made on one server are
automatically replicated to the other server. In case of conflict, a time stamp is used to determine
which server holds the most recent version.
multiplexor
The server containing the database link that communicates with the remote server.
N
n + 1 directory problem
The problem of managing multiple instances of the same information in different directories,
resulting in increased hardware and personnel costs.