Systemd journal logging and journalctl overview

This infographic visually explains the process of system logging managed by systemd-journald. It shows various log sources such as the kernel, system services, systemd units, applications, and boot processes feeding logs into systemd-journald, which collects and organizes the data. The logs are stored in a binary format journal with metadata including timestamps, priorities, units, process IDs, and messages. The image also highlights the journalctl command-line interface, demonstrating commands and features like real-time monitoring, forwarding logs to RSYSLOG or other storage, and field filtering for analysis and searching. The visual style uses arrows, icons, and a computer setup to depict data flow and system components in a clear, colorful, and structured manner.