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Creating and Maintaining Database Links
112
Netscape Directory Server Administrator’s Guide • May 2002
•
ACIs that refer to values of a user’s entry (for example,
userattr
subject rules)
will work if the users is remote.
Though access controls are always evaluated on the remote server, you can also
choose to have them evaluated on both the server containing the database link and
the remote server. This poses several limitations:
•
During access control evaluation, contents of user entries are not necessarily
available (for example, if the access control is evaluated on the server
containing the database link and the entry is located on a remote server).
For performance reasons, clients cannot do remote inquiries and evaluate
access controls.
•
The database link does not necessarily have access to the entries being
modified by the client application.
When performing a modify operation, the database link does not have access
to the full entry stored on the remote server. If performing a delete operation,
the database link is only aware of the entry’s DN. If an access control specifies a
particular attribute, then a delete operation will fail when being conducted
through a database link.
Advanced Feature: Tuning Database Link
Performance
The following sections provide information on tuning the performance of your
database links through connection and thread management. It contains the
following parts:
•
Managing Connections to the Remote Server
•
Detecting Errors During Normal Processing
•
Managing Threaded Operations
NOTE
By default, access controls set on the server containing the database
link are not evaluated. To override this default, use the
nsCheckLocalACI
attribute in the
cn=
database_link_name
,cn=chaining
database,cn=plugins,cn=config
entry. However, evaluating
access controls on the server containing the database link is not
recommended unless using cascading chaining.
Summary of Contents for NETSCAPE DIRECTORY SERVER 6.02
Page 1: ...Administrator s Guide Netscape Directory Server Version6 02 May 2002 ...
Page 16: ...16 Netscape Directory Server Administrator s Guide May 2002 ...
Page 20: ...20 Netscape Directory Server Administrator s Guide May 2002 ...
Page 74: ...Maintaining Referential Integrity 74 Netscape Directory Server Administrator s Guide May 2002 ...
Page 138: ...Using Referrals 138 Netscape Directory Server Administrator s Guide May 2002 ...
Page 432: ...Miscellaneous Tuning Tips 432 Netscape Directory Server Administrator s Guide May 2002 ...
Page 434: ...434 Netscape Directory Server Administrator s Guide May 2002 ...
Page 468: ...PTA Plug In Syntax Examples 468 Netscape Directory Server Administrator s Guide May 2002 ...
Page 488: ...488 Netscape Directory Server Administrator s Guide May 2002 ...
Page 528: ...Examples of LDAP URLs 528 Netscape Directory Server Administrator s Guide May 2002 ...