syslog

This optional clause creates a syslog logger, which logs all messages with a specified priority level or higher to the syslog system.

Messages are logged to syslog with severity levels that depend on the severity of the message. There are 8 defined priority levels in syslog, and they are logged to the equivalent syslog priority. The priority levels with their corresponding values and descriptions are:

• Emergency (0): System is unusable
• Alert (1): Immediate action needed
• Critical (2): Critical conditions
• Error (3): Error conditions
• Warning (4): Warning conditions
• Notice (5): Normal but significant conditions
• Informational (6): Informational messages
• Debug (7): Debug-level messages

Example configuration of a syslog logger:

syslog {
    loglevel info;
    facility daemon;

    # optional syslog unix domain socket path
    #filename /var/run/syslog;
}