nellemann/syslogd
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syslogd/README.md

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Syslog Server

All received messages are written to stdout and/or forwarded to another syslog server.

The syslog server is able to listen on both UDP and TCP and parses syslog messages in either RFC5424 or RFC3164 (BSD) format.

The default syslog port (514) requires you to run syslogd as root / administrator. If you do not wish to do so, you can choose a port number (with the -p or --port flag) above 1024.

Usage Instructions

  • Install the syslogd package (.deb or .rpm) from downloads or build from source.
  • Run bin/syslogd, use the -h option for help :)
Usage: syslogd [-dghV] [--[no-]ansi] [--[no-]stdout] [--[no-]tcp] [--[no-]udp]
               [--rfc5424] [-f=<host>] [-p=<port>]
Syslog Server
  -d, --debug            Enable debugging [default: 'false'].
  -f, --forward=<host>   Forward to UDP host[:port] (RFC-5424).
  -g, --gelf             Forward in Graylog (GELF) JSON format.
  -h, --help             Show this help message and exit.
      --[no-]ansi        Output ANSI colors [default: true].
      --[no-]stdout      Output messages to stdout [default: true].
      --[no-]tcp         Listen on TCP [default: true].
      --[no-]udp         Listen on UDP [default: true].
  -p, --port=<port>      Listening port [default: 514].
      --rfc5424          Parse RFC-5424 messages [default: RFC-3164].
  -V, --version          Print version information and exit.

Examples

Listening on a non-standard syslog port:

java -jar /path/to/syslogd-x.y.z-all.jar --port 1514

or, if installed as a deb or rpm package:

/opt/syslogd/bin/syslogd --port 1514

Listening on the standard syslog port (requires root privileges) and forwarding messages on to another log-system on a non-standard port.

java -jar /path/to/syslogd-x.y.z-all.jar --forward remotehost:1514

Forwarding to a Graylog server in GELF format.

java -jar /path/to/syslogd-x.y.z-all.jar --forward remotehost:12201 --gelf

If you don't want any output locally (only forwarding), you can use the --no-stdout flag.

Notes

Syslog messages from AIX (and IBM Power Virtual I/O Servers) can be troublesome with some logging solutions. These can be received with syslogd and optionally forwarded on to Graylog, Splunk or other logging solutions.