Creating And Maintaining Database Links; Configuring The Chaining Policy; Chaining Component Operations - Red Hat DIRECTORY SERVER 7.1 - ADMINISTRATOR Administrator's Manual

Creating and Maintaining Database Links

Chaining is a method by which a server contacts other servers on behalf of a client
application and then returns the combined results. This method is implemented
through the database link. A database link points to data stored remotely. When a
client application requests data from a database link, the database link retrieves the
data from the remote database and returns it to the client.
The following sections describe how to create and configure a database link. For
more general information about chaining, refer to chapter 5, "Designing the
Directory Topology," in the Red Hat Directory Server Deployment Guide.
You can create and configure a database link using Directory Server Console or the
command-line. The following sections describe the procedures for creating and
maintaining a database link:
•

Configuring the Chaining Policy

• Creating a New Database Link
• Chaining Using SSL
• Maintaining Database Links
• Database Links and Access Control Evaluation
• Advanced Feature: Tuning Database Link Performance
• Advanced Feature: Configuring Cascading Chaining
For information about monitoring the activity of your database links, refer to
"Monitoring Database Link Activity," on page 467.
Configuring the Chaining Policy
These procedures describe configuring how your Directory Server chains requests
made by client applications to Directory Servers that contain database links. This
chaining policy applies to all database links you create on your Directory Server.

Chaining Component Operations

A component is any functional unit in the server that uses internal operations. For
example, plug-ins are considered to be components, as are functions in the
front-end. However, a plug-in may actually be comprised of multiple components
(for example, the ACI Plug-in).
Creating and Maintaining Database Links
Chapter 3 Configuring Directory Databases 103