Red Hat DIRECTORY SERVER 8.1 - DEPLOYMENT Deployment Manual page 80

Chapter 5. Designing the Directory Topology
Figure 5.12. Sending a Client Request to a Server Using Chaining
In the illustration above, the following steps are performed:
1. The client application binds with Server A, and Server A tries to confirm that the user name and
password are correct.
2. Server A does not contain an entry corresponding to the client application. Instead, it contains
a database link to Server B, which contains the actual entry of the client. Server A sends a bind
request to Server B.
3. Server B sends an acceptance response to Server A.
4. Server A then processes the client application's request using the database link. The database link
contacts a remote data store located on Server B to process the search operation.
In a chained system, the entry corresponding to the client application does not need to be located on
the same server as the data the client requests. For example, a system could be set up as follows:
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