Which of the following are valid standard syslog facility names usable on the left-hand side of an rsyslog selector? (Choose three.)
LPIC-1 Exam 102-500, objective 108. Essential system services medium
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The options
Choose 3.
Not correct process
Not a facility. There is no `process` facility; messages from ordinary programs default to the user facility.
Correct authpriv
Valid. authpriv carries security and authorisation messages that should not be world-readable, which is why they land in /var/log/secure on RHEL-family systems and /var/log/auth.log on Debian-family ones.
Not correct network
Not a facility. Networking messages come from the kernel (kern) or from the daemon in question (daemon), and there is no `network` facility in the syslog protocol.
Correct local5
Valid. local0 through local7 are deliberately left undefined by the standard so administrators and appliances can assign them to their own applications.
Correct cron
Valid. cron is the facility used by the scheduling daemons for job start, finish and failure messages.
Why
The syslog protocol fixes the facility list: auth, authpriv, cron, daemon, ftp, kern, lpr, mail, news, security (a deprecated synonym for auth), syslog, user, uucp and local0-local7. Anything outside that list cannot appear in a selector. The facility is chosen by the sending program, not by rsyslog, which is why `logger -p local3.info` exists — it lets a shell script pick a facility deliberately.
Where this comes from
- Cited
- LPI exam objective 108.2
- What it says
- Standard syslog facilities and their meaning.
Practise this
Reading one question is not practice. The trainer will draw a set from objective 108 and space the ones you get wrong.