Transfer protocol used by Splunk

[payl_chdhry]

What transfer protocol splunk uses like FTP, sFTP..

That is what transfer method is used to transfer data via TCP when sending data from UF to Splunk core cluster (enterprise)

[payl_chdhry]

Thank you for your responses @tscroggins @PickleRick 

[PickleRick]

For Splunk to Splunk connectivity Splunk uses aptly named s2s (splunk-to-splunk) protocol. It can be either used "raw" or embedded into HTTP.

[tscroggins]

Hi @payl_chdhry,

Splunk uses the proprietary Splunk-To-Splunk (S2S) protocol over TCP between tcpout outputs and splunktcp inputs, optionally encapsulated in TLS.

Splunk also natively supports HTTP output and input via HTTP Event Collector, syslog output, raw TCP output,   and raw TCP and UDP input.