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User Guide for Cisco Secure Access Control Server - Stewing Home

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Chapter 8 System Configuration: Advanced<br />

Database Replication Event Errors<br />

OL-14386-02<br />

RDBMS Synchronization<br />

The Database Replication report contains messages indicating errors that occur during replication. For<br />

more in<strong>for</strong>mation about the Database Replication report, see ACS Audit Logs, page 10-5.<br />

Tip Brief descriptions of errors are reported to the replication report, however sometimes more detailed<br />

errors are written to the CSAuth service log file, auth.log.<br />

RDBMS Synchronization<br />

This section provides in<strong>for</strong>mation about the RDBMS Synchronization feature, including procedures <strong>for</strong><br />

implementing this feature, within ACS and the external data source involved.<br />

This section contains:<br />

About RDBMS Synchronization, page 8-17<br />

Invoking RDBMS Synchronization, page 8-19<br />

RDBMS Synchronization Functionality, page 8-20<br />

RDBMS Synchronization Components, page 8-27<br />

ACS Database Recovery Using the accountActions Table, page 8-30<br />

Reports and Event (Error) Handling, page 8-30<br />

Preparing to Use RDBMS Synchronization, page 8-30<br />

Configuring a System DSN <strong>for</strong> RDBMS Synchronization (ACS <strong>for</strong> Windows), page 8-32<br />

RDBMS Synchronization Options, page 8-33<br />

About RDBMS Synchronization<br />

Per<strong>for</strong>ming RDBMS Synchronization, page 8-35<br />

Scheduling RDBMS Synchronization, page 8-36<br />

Disabling Scheduled RDBMS Synchronizations, page 8-37<br />

RDBMS Synchronization Failure Codes, page 8-38<br />

You can regard RDBMS Synchronization as an API—much of what you can configure <strong>for</strong> a user, group,<br />

or device through the ACS web interface, you can alternatively maintain through this feature. RDBMS<br />

Synchronization supports the creation, addition, modification, and deletion <strong>for</strong> all data items that it can<br />

access.<br />

You can configure the synchronization to occur on a regular schedule. You can also per<strong>for</strong>m<br />

synchronizations manually, updating the ACS internal database on demand. For more in<strong>for</strong>mation about<br />

configuring RDBMS Synchronization, see the Configuration <strong>Guide</strong> <strong>for</strong> <strong>Cisco</strong> <strong>Secure</strong> ACS 4.2.<br />

Synchronization that a single ACS per<strong>for</strong>ms can update the internal databases of other ACSs, so that you<br />

only need to configure RDBMS Synchronization on one ACS. ACSs listen on TCP port 2000 <strong>for</strong><br />

synchronization data. RDBMS Synchronization communication between ACSs is encrypted using a<br />

128-bit encrypted, proprietary algorithm.<br />

<strong>User</strong> <strong>Guide</strong> <strong>for</strong> <strong>Cisco</strong> <strong>Secure</strong> <strong>Access</strong> <strong>Control</strong> <strong>Server</strong> 4.2<br />

8-17

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