One traditional use of a SIEM appliance is to monitor for exceptions received via syslog.

Syslog is a standard for message logging and allows devices to send event notification messages across IP networks to event message collectors - also known as Syslog servers or SIEM (Security Information and Event Management) systems. Native support for syslog is commonly found in various network devices and Unix/Linux-based systems.

Enterprise Wireless Access Points, Linux Web Server Appliances, and Enterprise Stateful Firewalls typically have built-in capabilities to generate and send syslog messages to a SIEM system for monitoring and analysis.

Windows Desktop Systems, on the other hand, do not natively support syslog because Windows uses its own event logging system known as Windows Event Log. While it is possible to configure Windows systems to send logs to a SIEM appliance, this usually requires additional software or agents to translate Windows Event Log messages into syslog format before they can be sent1.

References: The information provided here is based on common knowledge of system logging protocols and SIEM system capabilities, which are part of the foundational knowledge of Information Security Management Principles as outlined by BCS and supported by industry insights12.