systemlogger

Systemlogger is a software component in operating systems responsible for collecting, processing, and storing log messages generated by the kernel, system services, and applications. It provides a centralized mechanism for recording events to support monitoring, debugging, auditing, and troubleshooting.

Typically running as a background daemon, it receives messages through standard interfaces such as the syslog protocol or platform APIs, and routes them to one or more destinations. Destinations may include rotating log files, the system console, or remote log servers.

Core features usually include support for log levels (debug, info, warning, error), categories or facilities, message formatting, timestamps, and filtering. Many implementations also offer log rotation, reliability options, and buffering for transmission failures.

In Unix-like environments, historical and contemporary implementations include syslogd, rsyslog, and syslog-ng. The term systemlogger is often used generically to refer to such daemons, or as the name of a specific component in particular platforms. Windows uses the Event Log for similar purposes.

Configuration is typically performed via text files that specify destinations, formats, and filters. Security considerations include access control and, for remote logging, encryption and integrity protection. Growing deployments favor centralized logging, structured formats such as JSON, and integration with SIEM systems.