Audit logs are essential tools used by system administrators, network engineers, and developers to diagnose system performance, correct errors, and maintain system stability. Their importance extends into cybersecurity, where they serve as a basis for forensic analysis and security investigations. Audit logs capture events that detail "who" did "what" and "how" the system responded, which aids in reconstructing events, promoting accountability, and enhancing security through detailed user activity monitoring. These logs can vary across different systems and applications, requiring careful configuration to ensure they are useful and secure. Challenges include ensuring accurate log collection, storage, and analysis, as improperly configured or compromised logs are ineffective. Tools like ELK (Elasticsearch, Logstash, and Kibana) and SIEM systems help manage this complexity by offering centralized logging solutions. For optimal use, logs should be configured to include time synchronization and strong access controls to prevent tampering. Properly managed audit logs not only support operational diagnostics but also underpin compliance with industry best practices by providing a structured approach to monitoring and responding to security threats.