log4js-node-syslog

Syslog appender for log4js-node. Syslog messages are send with syslog-pro.

Only RFC3164 and RFC5424 formate are suporteed at the moment.

Installation

npm install log4js-node-syslog-pro --save

Usage

const log4js = require('log4js')

log4js.configure({
  appenders: {
    syslog: {
      type: 'log4js-node-syslog-pro',
      // SyslogPro options: https://cyamato.github.io/SyslogPro/module-SyslogPro-RFC3164.html
      server: {
        target: 'localhost', // default
        port: 514 // default
      },
      applacationName: 'My-App',
      facility: 23, // default
      format: 'rfc3164'
    }
  },
  categories: { default: { appenders: ['syslog'], level: 'debug' } }
})
const logger = log4js.getLogger()

logger.info('My log message!')
// --> 2019-10-23 14:56:41 Local7.Debug my-hostname Oct 23 02:56:41 my-hostname My-App [DEBUG] default - My log message! 

Mapping log level to syslog severity

| Log Level | Syslog Severity | | --- | --- | | trace | debug | | debug | debug | | info | info | | warning | warning | | error | error | | fatal | critical |

Facilities

| Facility Number| Facility Description | | :---: |---| | 0 | kernel messages | | 1 | user-level messages | | 2 | mail system | | 3 | system daemons | | 4 | security/authorization messages | | 5 | messages generated internally by syslog | | 6 | line printer subsystem | | 7 | network news subsystem | | 8 | UUCP subsystem | | 9 | clock daemon | | 10 | System0 | | 11 | System1 | | 12 | System2 | | 13 | System3 | | 14 | System4 | | 15 | System5 | | 16 | local use 0 (local0) | | 17 | local use 1 (local1) | | 18 | local use 2 (local2) | | 19 | local use 3 (local3) | | 20 | local use 4 (local4) | | 22 | local use 6 (local6) | | 23 | local use 7 (local7) |