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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Tcp output plugin

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Tcp output plugin

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Plugin version: v6.0.1
Released on: 2022-02-07
Changelog

For other versions, see the Versioned plugin docs.

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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Write events over a TCP socket.

Each event json is separated by a newline.

Can either accept connections from clients or connect to a server, depending on mode.

Tcp Output Configuration Options

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

Setting	Input type	Required
`host`	string	Yes
`mode`	string, one of `["server", "client"]`	No
`port`	number	Yes
`reconnect_interval`	number	No
`ssl_cacert`	a valid filesystem path	No
`ssl_cert`	a valid filesystem path	No
`ssl_enable`	boolean	No
`ssl_key`	a valid filesystem path	No
`ssl_key_passphrase`	password	No
`ssl_verify`	boolean	No

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

`host`

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

When mode is server, the address to listen on. When mode is client, the address to connect to.

`mode`

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Value can be any of: server, client
Default value is "client"

Mode to operate in. server listens for client connections, client connects to a server.

`port`

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

When mode is server, the port to listen on. When mode is client, the port to connect to.

`reconnect_interval`

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Value type is number
Default value is 10

When connect failed,retry interval in sec.

`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_enable`

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Value type is boolean
Default value is false

Enable SSL (must be set for other ssl_ options to take effect).

`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. For input, sets the field sslsubject to that of the client certificate.

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

`codec`

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Value type is codec
Default value is "json"

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 tcp outputs. Adding a named ID in this case will help in monitoring Logstash when using the monitoring APIs.

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

Variable substitution in the id field only supports environment variables and does not support the use of values from the secret store.

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