Choose the syslog facility used for messages generated by the kernel.
Which facility is appropriate?
kern classifies messages generated by the kernel; facility and priority are separate dimensions.
Detailed explanation
authprivIncorrect. authpriv is for private authentication and authorization messages.
Incorrect. authpriv is for private authentication and authorization messages.
daemonIncorrect. daemon is for system daemons without a more specific facility.
Incorrect. daemon is for system daemons without a more specific facility.
userIncorrect. user is for user-level messages.
Incorrect. user is for user-level messages.
kernCorrect. kern is the kernel facility.
Correct. kern is the kernel facility.
Try it yourself
An example you can run in a temporary verification environment.
printf '%s\n' 'kern=kernel' 'authpriv=private authentication' 'daemon=system daemons' 'user=user-level messages'Expected result
facilityと用途の対応4行Key points
- kern means kernel
- Facility is source classification
- Separate from priority
Notes
- Environment: 合成facility表の確認
- Command output formatting can vary slightly by distribution or tool version.
- Run the example in a temporary directory or process when possible.
Foundation review
Read the scope first
Check whether the command acts on the current shell, a new process, an existing process, or a file.
Verify the observable result
Use the supplied command and compare the output with the expected result.