Splunk universal forwarder

Splunk universal forwarder source plugin

Splunk Universal Forwarder (UF) is a lightweight data collection agent that enables you to collect data from various sources. Splunk UF provides a highly secure and reliable solution for collecting and forwarding data, with support for various input sources such as logs, metrics, and events. It can collect data from both local and remote sources and supports various protocols such as TCP, UDP, HTTP, and HTTPS. Splunk UF also provides a wide range of configuration options, letting you to customize its behavior to suit your specific needs.

You can use the Splunk UF Source Plugin to configure your Calyptia Core pipeline to collect data from your Splunk UF instances.

Configuration parameters

The Splunk UF source plugin provides these configuration parameters.


PortTCP port used for listening for incoming messages.


FormatSet the format: json or none.
Set SeparatorSet separator.
Chunk SizeSet the chunk size for incoming messages.
Buffer SizeSet the chunk size for incoming JSON messages. These chunks are then stored and managed in the space available by buffer_size.

Security and TLS

TLSEnable or disable TLS/SSL support.
TLS Certificate ValidationTurn TLS/SSL certificate validation on or off. TLS must be on for this setting to be enabled.
TLS Debug LevelSet TLS debug verbosity level. Accepts these values: 0 (No debug), 1 (Error), 2 (State change), 3 (Informational), 4 (Verbose).
CA Certificate File PathAbsolute path to CA certificate file.
Certificate File PathAbsolute path to certificate file.
Private key File PathAbsolute path to private key file.
Private Key Path PasswordOptional password for tls.key_file file.
TLS SNI Hostname ExtensionHostname to be used for TLS SNI extension.

Splunk Universal Forwarder configuration

defaultGroup = calyptia
disabled = false

sendCookedData = false
negotiateProtocolLevel = 0