Red Hat 8.1 Configuration And Command Reference page 255

PT A
Mechanism by which one Directory Server consults another to check bind credentials. Also
pass-through authentication.
PT A directory server
In pass-through authentication
(passes through) bind requests it receives to the
PT A LDAP URL
In pass-through authentication, the URL that defines the
through subtree(s), and optional parameters.
R
RAM
Random access memory. T he 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
T he name of the actual entry itself, before the entry's ancestors have been appended to the
string to form the full distinguished name. Also
read-only replica
A replica that refers all update operations to read-write replicas. A server can hold any number
of read-only replicas.
read-write replica
A replica that contains a master copy of directory information and can be updated. A server can
hold any number of read-write replicas.
referential integrity
Mechanism that ensures that relationships between related entries are maintained within the
directory.
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. T his forwarding process is
called a referral.
relative distinguished name
See RDN.
replica
A database that participates in replication.
replica-initiated replication
Red Hat D irectory Server 8.1 Configuration and Command Reference
(PT A), the PT A Directory Server is the server that sends
authenticating directory
authenticating directory
relative distinguished
server.
server, pass-
name.
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