Cisco Certified Support Technician (CCST) NetworkingIP ServicesHard
A large enterprise network relies heavily on centralized logging for security auditing and troubleshooting. All network devices are configured to send their log messages to a Syslog server. If the Syslog server is unreachable, and the network devices are configured to only send logs with a specific facility, which of the following best describes the 'facility' in Syslog?
- AIt determines the transport protocol (TCP or UDP) used for sending logs.
- BIt specifies the destination IP address of the Syslog server.
- CIt indicates the source or type of the process that generated the message.
- DIt defines the severity level of the log message.
Show answer & explanationAnswer & explanation
Correct answer: C. It indicates the source or type of the process that generated the message.
In Syslog, the 'facility' field indicates the type of program or process that generated the log message (e.g., kernel, mail system, daemon, local use). It helps categorize logs from different sources on a device.
Why the other options are wrong
- A. The transport protocol is configured separately for Syslog (usually UDP 514 by default).
- B. The destination IP is part of the network configuration, not the facility field itself.
- D. Severity level is a separate field (e.g., Emergency, Alert, Critical).
Syslog Facility
A field in a Syslog message that indicates the source program or process that generated the log, helping to categorize messages by origin.
- Ranges from 0 to 23.
- Examples: kernel, user-level, mail system, system daemons, security/authorization.
- Used for filtering and routing logs.
Memory trick: The 'Facility' is like the department or building the message came from.