Red Hat DIRECTORY SERVER 8.0, Руководство администратора

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Maintaining Suffixes
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Section 3.1.2.4, “Deleting a Suffix”
3.1.2.1. Using Referrals in a Suffix
Referrals can be used to point a client application temporarily to a different server. For example,
adding a referral to a suffix so that the suffix points to a different server allows the database associated
with the suffix is taken off-line for maintenance without affecting the users of the Directory Server
database.
To set referrals in a suffix, do the following:
1. In the Directory Server Console, select the
Configuration
tab.
2. Under
Data
in the left pane, select the suffix for which to add a referral.
3. Click the
Suffix Settings
tab, and select the
Return Referrals for all Operations
radio button.
4. Click the
Referrals
tab. Enter an LDAP URL in the
Enter a new referral
field, or click
Construct
to be guided through the creation of an LDAP URL.
Appendix C, LDAP URLs
has more
information about the structure of LDAP URLs.
5. Click
Add
to add the referral to the list.
You can enter multiple referrals. The directory will return the entire list of referrals in response to
requests from client applications.
6. Click
Save
.
3.1.2.2. Enabling Referrals Only During Update Operations
It is possible to configure the directory to redirect update and write requests made by client
applications to a read-only database. For example, there may be a local copy of directory data, and
that data should be available company-wide for searches but not for updates. Enabling referrals for
that Directory Server only for update requests means that when a client application asks to update
an entry, the client is referred to the server that owns the data, where the modification request can
proceed.
To enable referrals only during update operations, do the following:
1. In the Directory Server Console, select the
Configuration
tab.
2. Under
Data
in the left pane, click the suffix to which to add a referral.
3. Click the
Suffix Settings
tab, and select the
Return Referrals for Update Operations
radio
button.
4. Click the
Referrals
tab. Enter an LDAP URL in the
Enter a new referral
field, or click
Construct
to be guided through the creation of an LDAP URL.
For more information about the structure of LDAP URLs, refer to the Appendix.
5. Click
Add
to add the referral to the list.
You can enter multiple referrals. The directory will return the entire list of referrals in response to
requests from client applications.