What are logs? What can be found there?

Logs are records of events that occur in the operation of software or systems. Logs can contain information about the execution of operations, errors, warnings, execution times, user actions, and system events. They help analyze application behavior, identify and fix errors, and also monitor performance and security.

Example of log content:

2024-06-01 10:15:23 INFO User login successful: user_id=123
2024-06-01 10:16:05 ERROR Database connection timeout
2024-06-01 10:17:45 WARN Disk space low

Thus, logs are an important tool for diagnostics and system monitoring.