All Apps and Add-ons

Splunk for OSSEC not working from a Remote OSSEC Server

swbradley1
Explorer

I have a working Splunk 4.2.1 server and I added Splunk for OSSEC 1.1.84 to it. I send the data from the OSSEC server over via syslog on UDP514. Splunk sees the data but nothing gets populated into the OSSEC dashboards. I edited the inputs.conf file for OSSEC so that it will only use UDP514. When I do a sourcetype=ossec* all I see are the old ossec_agent_control messages sources. The OSSEC messages are of type syslog.

How do I get it to populate the OSSEC dashboards?

thx

0 Karma

southeringtonp
Motivator

It sounds like your OSSEC events are not being correctly sourcetyped. Anything OSSEC alerts coming in via syslog need to have a sourcetype of ossec. The simplest thing would be to edit your input and explicitly set the sourcetype to ossec:

  • Go into the Manager
  • Go to Data Inputs -> UDP
  • Click on port 514
  • From the 'Set sourcetype' dropdown, choose manual.
  • In the box, type ossec
  • Click Save.

Note that this will set the sourcetype for all data coming in on port 514/udp. If you have other syslog events coming in, the simplest thing is to set up a separate port for OSSEC (port 10002 is a common choice).

Alternately, you could set up a transform to override the sourcetype for matching events.

swbradley1
Explorer

That answer explained and it fixed my problem. thank you

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Build the Future of Agentic AI: Join the Splunk Agentic Ops Hackathon

AI is changing how teams investigate incidents, detect threats, automate workflows, and build intelligent ...

[Puzzles] Solve, Learn, Repeat: Character substitutions with Regular Expressions

This challenge was first posted on Slack #puzzles channelFor BORE at .conf23, we had a puzzle question which ...

Splunk Community Badges!

  Hey everyone! Ready to earn some serious bragging rights in the community? Along with our existing badges ...