IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Syslog output plugin

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Syslog output plugin

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Plugin version: v3.0.2
Released on: 2017-06-23
Changelog

Getting Help

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For questions about the plugin, open a topic in the Discuss forums. For bugs or feature requests, open an issue in Github. For the list of Elastic supported plugins, please consult the Elastic Support Matrix.

Description

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Send events to a syslog server.

You can send messages compliant with RFC3164 or RFC5424 using either UDP or TCP as the transport protocol.

By default the contents of the message field will be shipped as the free-form message text part of the emitted syslog message. If your messages don’t have a message field or if you for some other reason want to change the emitted message, modify the message configuration option.

Syslog Output Configuration Options

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This plugin supports the following configuration options plus the Common Options described later.

Setting	Input type	Required
`appname`	string	No
`facility`	string	No
`host`	string	Yes
`message`	string	No
`msgid`	string	No
`port`	number	Yes
`priority`	string	No
`procid`	string	No
`protocol`	string, one of `["tcp", "udp", "ssl-tcp"]`	No
`reconnect_interval`	number	No
`rfc`	string, one of `["rfc3164", "rfc5424"]`	No
`severity`	string	No
`sourcehost`	string	No
`ssl_cacert`	a valid filesystem path	No
`ssl_cert`	a valid filesystem path	No
`ssl_key`	a valid filesystem path	No
`ssl_key_passphrase`	password	No
`ssl_verify`	boolean	No
`use_labels`	boolean	No

Also see Common Options for a list of options supported by all output plugins.

`appname`

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Value type is string
Default value is "LOGSTASH"

application name for syslog message. The new value can include %{foo} strings to help you build a new value from other parts of the event.

`facility`

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Value type is string
Default value is "user-level"

facility label for syslog message default fallback to user-level as in rfc3164 The new value can include %{foo} strings to help you build a new value from other parts of the event.

`host`

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This is a required setting.
Value type is string
There is no default value for this setting.

syslog server address to connect to

`message`

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Value type is string
Default value is "%{message}"

message text to log. The new value can include %{foo} strings to help you build a new value from other parts of the event.

`msgid`

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Value type is string
Default value is "-"

message id for syslog message. The new value can include %{foo} strings to help you build a new value from other parts of the event.

`port`

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This is a required setting.
Value type is number
There is no default value for this setting.

syslog server port to connect to

`priority`

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Value type is string
Default value is "%{syslog_pri}"

syslog priority The new value can include %{foo} strings to help you build a new value from other parts of the event.

`procid`

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Value type is string
Default value is "-"

process id for syslog message. The new value can include %{foo} strings to help you build a new value from other parts of the event.

`protocol`

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Value can be any of: tcp, udp, ssl-tcp
Default value is "udp"

syslog server protocol. you can choose between udp, tcp and ssl/tls over tcp

`reconnect_interval`

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Value type is number
Default value is 1

when connection fails, retry interval in sec.

`rfc`

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Value can be any of: rfc3164, rfc5424
Default value is "rfc3164"

syslog message format: you can choose between rfc3164 or rfc5424

`severity`

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Value type is string
Default value is "notice"

severity label for syslog message default fallback to notice as in rfc3164 The new value can include %{foo} strings to help you build a new value from other parts of the event.

`sourcehost`

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Value type is string
Default value is "%{host}"

source host for syslog message. The new value can include %{foo} strings to help you build a new value from other parts of the event.

`ssl_cacert`

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Value type is path
There is no default value for this setting.

The SSL CA certificate, chainfile or CA path. The system CA path is automatically included.

`ssl_cert`

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Value type is path
There is no default value for this setting.

SSL certificate path

`ssl_key`

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Value type is path
There is no default value for this setting.

SSL key path

`ssl_key_passphrase`

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Value type is password
Default value is nil

SSL key passphrase

`ssl_verify`

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Value type is boolean
Default value is false

Verify the identity of the other end of the SSL connection against the CA.

`use_labels`

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Value type is boolean
Default value is true

use label parsing for severity and facility levels use priority field if set to false

Common Options

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The following configuration options are supported by all output plugins:

Setting	Input type	Required
`codec`	codec	No
`enable_metric`	boolean	No
`id`	string	No
`workers`	number	No

`codec`

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Value type is codec
Default value is "plain"

The codec used for output data. Output codecs are a convenient method for encoding your data before it leaves the output, without needing a separate filter in your Logstash pipeline.

`enable_metric`

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Value type is boolean
Default value is true

Disable or enable metric logging for this specific plugin instance by default we record all the metrics we can, but you can disable metrics collection for a specific plugin.

`id`

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Value type is string
There is no default value for this setting.

Add a unique ID to the plugin configuration. If no ID is specified, Logstash will generate one. It is strongly recommended to set this ID in your configuration. This is particularly useful when you have two or more plugins of the same type, for example, if you have 2 grok filters. Adding a named ID in this case will help in monitoring Logstash when using the monitoring APIs.

output {
 stdout {
   id => "my_plugin_id"
 }
}

`workers`

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Value type is string
Default value is 1

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