The syslog constants are replicated here because not all systems have the (binary) syslog module.
RFC5424 priority values are a combination of a priority and facility code, for example:
prival = LOG_ALERT | LOG_DAEMON
Priorities
| Constant |
Description |
|---|
| LOG_EMERG |
System is unusable |
| LOG_ALERT |
Action must be taken immediately |
| LOG_CRIT |
Critical conditions |
| LOG_ERR |
Error conditions |
| LOG_WARNING |
Warning conditions |
| LOG_NOTICE |
Normal but significant condition |
| LOG_INFO |
Informational |
| LOG_DEBUG |
Debug-level messages |
Facility codes
| Constant |
Description |
|---|
| LOG_KERN |
Kernel messages |
| LOG_USER |
Random user-level messages |
| LOG_MAIL |
Mail system |
| LOG_DAEMON |
System daemons |
| LOG_AUTH |
Security/authorization messages |
| LOG_SYSLOG |
Messages generated internally by syslogd |
| LOG_LPR |
Line printer subsystem |
| LOG_NEWS |
Network news subsystem |
| LOG_UUCP |
UUCP subsystem |
| LOG_CRON |
Clock daemon |
| LOG_AUTHPRIV |
Security/authorization messages (private) |
| LOG_LOCAL0 |
Reserved for local use |
| LOG_LOCAL1 |
Reserved for local use |
| LOG_LOCAL2 |
Reserved for local use |
| LOG_LOCAL3 |
Reserved for local use |
| LOG_LOCAL4 |
Reserved for local use |
| LOG_LOCAL5 |
Reserved for local use |
| LOG_LOCAL6 |
Reserved for local use |
| LOG_LOCAL7 |
Reserved for local use |