Glossary 307
DAP Directory Access Protocol. The ISO X.500 standard protocol that provides
client access to the directory.
data master The server that is the master source of a particular piece of data.
database link An implementation of chaining. The database link behaves like a
database but has no persistent storage. Instead, it points to data stored remotely.
default index One of a set of default indexes created per database instance.
Default indexes can be modified, although care should be taken before removing
them, as certain plug-ins may depend on them.
definition entry See CoS definition entry.
Directory Access Protocol See DAP.
directory tree The logical representation of the information stored in the
directory. It mirrors the tree model used by most filesystems, with the tree’s root
point appearing at the top of the hierarchy. Also known as DIT.
Directory Manager The privileged database administrator, comparable to the
root user in UNIX. Access control does not apply to the Directory Manager.
Directory Server Gateway Also DSGW. A collection of CGI forms that allows a
browser to perform LDAP client functions, such as querying and accessing a
Directory Server, from a web browser.
directory service A database application designed to manage descriptive,
attribute-based information about people and resources within an organization.
distinguished name String representation of an entry’s name and location in an
LDAP directory.
DIT See directory tree.
DN see distinguished name.
DM See Directory Manager.
DNS Domain Name System. The system used by machines on a network to
associate standard IP addresses (such as 198.93.93.10) with hostnames (such as
www.example.com
). Machines normally get the IP address for a hostname from a
DNS server, or they look it up in tables maintained on their systems.
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