A BIG-IP Administrator makes a configuration change to the BIG-IP device.

Comprehensive and Detailed Explanation From BIG-IP Administration Support and Troubleshooting documents: Troubleshooting configuration-related issues requires a clear trail of what was changed and by whom. The BIG-IP system includes a dedicated audit logging feature for this purpose28. Whenever a system object—such as a virtual server, pool, or iRule—is created, modified, or deleted, the system records the event in /var/log/audit29. These logs provide critical context during troubleshooting by showing if a performance drop or traffic failure coincided with a specific administrative action30. Unlike /var/log/ltm, which focuses on local traffic events like pool member status changes, or /var/log/secure, which handles authentication attempts, the audit log specifically tracks the "how" and "when" of configuration changes31. This is a vital resource for administrators to determine if a virtual server is not working as expected due to a recent manual change or an automated system action, allowing for a rapid "rollback" or correction of the configuration.