Definition
Logs are chronological records of events occurring within a system, application, or network. These records capture details such as timestamps, event types, user actions, and system status, providing a historical trace of operations. In practice, logs are generated by various components and collected by centralized logging systems for aggregation and analysis. They are crucial for troubleshooting, security monitoring, performance optimization, and auditing, enabling administrators to identify the root cause of issues or detect malicious activity. For instance, a web server log might record every incoming request, including the IP address, requested URL, and response code, helping to diagnose traffic patterns or identify attempted attacks. Unlike real-time alerts which signal immediate issues, logs provide the detailed historical context needed for in-depth investigation. Understanding logs is fundamental for domains like Security+, CySA+, and AWS SAA.