Splunk Enterprise Security

CEF Files on Syslog-NG with Universal Forwarder

jswilmoth
Engager

We use Websense in the Cloud, and their method for retrieving log files is to use a perl script which pulls down the logs in CEF format. I set up the script on a syslog server, it writes the CEF files are a folder. The syslog server runs the Universal Forwarder to send data to the indexers. I configured a monitor for that folder.

I can the universal forwarder monitoring the files, but they never show up in my searches. We have many other log sources on this syslog server, all are working fine, except they are all in .log format. These are .cef files.

Any help would be appreciated.

Websense Cloud Logging

[monitor:///opt/syslog/logs/websense_cloud/*.cef]
index = syslog
sourcetype = websense:cef
host_segment = 4
ignoreOlderThan = 5d

0 Karma

FrankVl
Ultra Champion

Let's start with some basic data feed troubleshooting:

  • any messages in splunkd.log confirming the forwarder has started to monitor that folder?
  • are you sure permissions on those files are correct for splunk to be able to read them?
  • any errors in splunkd.log on that forwarder related to this feed?
  • what does the forwarder's metrics.log say about this sourcetype?
  • what do your indexer metrics.log say about this sourcetype?
  • have your tried searching for 'all time', in case time stamp extraction isn't working perfectly?
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!

Design, Compete, Win: Submit Your Best Splunk Dashboards for a .conf26 Pass

Hello Splunkers,  We’re excited to kick off a Splunk Dashboard contest! We know that dashboards are a primary ...

May 2026 Splunk Expert Sessions: Security & Observability

Level Up Your Operations: May 2026 Splunk Expert Sessions Whether you are refining your security posture or ...

Network to App: Observability Unlocked [May & June Series]

In today’s digital landscape, your environment is no longer confined to the data center. It spans complex ...