Red Hat DIRECTORY SERVER 7.1 - GATEWAY CUSTOMIZATION Guía de instalación descargar pdf (Pagina 87)

Glossary 81

PTA LDAP URL

In pass-through authentication, the URL that deﬁnes the authenticating directory server, pass-

through subtree(s), and optional parameters.

RAM

Random access memory. The physical semiconductor-based memory in a computer. Information

stored in RAM is lost when the computer is shut down.

rc.local

A ﬁle on UNIX machines that describes programs that are run when the machine starts. It is also

called /etc/rc.local because of its location.

RDN

Also Relative Distinguished Name. The name of the actual entry itself, before the entry’s ances-

tors have been appended to the string to form the full distinguished name.

referential integrity

Mechanism that ensures that relationships between related entries are maintained within the di-

rectory.

referral

(1) When a server receives a search or update request from an LDAP client that it cannot process,

it usually sends back to the client a pointer to the LDAP sever that can process the request.

(2) In the context of replication, when a read-only replica receives an update request, it forwards

it to the server that holds the corresponding read-write replica. This forwarding process is called

a referral.

replica

A database that participates in replication.

read-only replica

A replica that refers all update operations to read-write replicas. A server can hold any number

of read-only replicas.

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Red Hat DIRECTORY SERVER 7.1 - GATEWAY CUSTOMIZATION Guía de instalación Pagina 87