Security

Does Splunk Forwarder need an interactive login?

danielteachesit
New Member

All, 

I've noticed by default that Splunk Forwarder gives itself /bin/bash  in /etc/passwd. 

e.g.

splunk:x:1001:1001:Splunk Server:/opt/splunkforwarder:/bin/bash

I changed it to the below and restarted:

splunk:x:1001:1001:Splunk Server:/opt/splunkforwarder:/sbin/nologin

Best I can tell there was no impact. Scripted inputs are working as it the monitor stanza's. 

Is there any reason I should leave Splunk user with a Shell? 

 

thanks!

Labels (1)
0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi @danielteachesit,

the splunk user, assigned as owner to Splunk Universal Forwarders, doesn't need the Linux shell.

I usually disable it in my production installation.

Ciao.

Giuseppe

0 Karma

isoutamo
SplunkTrust
SplunkTrust

You should also lock splunk user not only set shell to nologin. If/when need to use e.g. btool to check what those configurations are, just use "sudo -usplunk bash" command to get shell.

0 Karma

richgalloway
SplunkTrust
SplunkTrust

There is no need for the Splunk account to have a shell assigned to it.

---
If this reply helps you, Karma would be appreciated.
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!

How much can you really learn in 3 minutes?

Observability can certainly be hard to understand – there's a lot of jargon and buzzwords and it seems to ...

Event Series: The Agentic SOC: Trust Before Autonomy

AI is fundamentally changing security operations, but true progress requires more than just automation—it ...

Free Professional Services for .conf26 Attendees

This year at .conf26, we are doing something a little different. We are bringing the best minds from ...