LogQuellen

LogQuellen, often translated as log sources, are the components or systems that generate log data used for monitoring, auditing, troubleshooting and security. They form the origin points for data collected in log management workflows.

LogQuellen can be hardware devices, software applications, or cloud services, and may reside on-premises or in the cloud. They produce structured logs (JSON or key/value formats) or unstructured text suitable for parsing.

Common examples include operating systems (Windows Event Log, syslog on Linux), databases, web servers, network devices, virtualization platforms, containers, microservices, and Internet of Things devices.

Collection and transport are typically accomplished with agents or protocols such as Syslog, Windows Event Forwarding, or journald, and with shippers like Logstash, Fluentd, Filebeat, or cloud-native equivalents to centralize data.

In processing, logs are parsed, normalized, timestamped, and enriched to support searching, alerting, compliance reporting, incident response, and forensic analysis.

Key considerations include consistent timestamps and time zones, protection of sensitive information, retention and privacy policies, and ensuring reliability, scalability, and security of the log-collection pipeline.

As a core element of log management, LogQuellen underpin observability and security information and event management (SIEM) systems by enabling comprehensive visibility across systems and applications.