Getting Data In

Setting up Splunk receiver through TCP/IP

Caio_Santos
Path Finder

Hey everybody,

I'm going through some problems trying to set my receiver splunk instance. I performed exactely the ways which is described on the documantation, although Im still getting one error when I attempt to save my new date TCP input.

That's the error:

Encountered the following error while trying to save: In handler 'raw': TCP port 333 is not available.

As I said before, I followed each step on the docs, but for sure I'm missing something. I am sorry if I am being an ignorant, but I'm just starting with splunk.

Thank you in advance.

Tags (1)
2 Solutions

southeringtonp
Motivator

Is something else running on port 333 already? At the command line, try running netstat -an to check.

Also, if you are running Splunk as a non-root user, Splunk will not be able to bind to ports below 1024, as those ports are considered privileged.

Do you have the same problem with other port numbers, especially with port numbers above 1024?

View solution in original post

Genti
Splunk Employee
Splunk Employee

Caio, is this on a unix box?
If so, there might be a permission issue as only root can open ports under 1024.
You can try listening to tcp on a higher port, say 9001. Let us know if you get similar errors then.
Cheers,
.gz

View solution in original post

Genti
Splunk Employee
Splunk Employee

Caio, is this on a unix box?
If so, there might be a permission issue as only root can open ports under 1024.
You can try listening to tcp on a higher port, say 9001. Let us know if you get similar errors then.
Cheers,
.gz

southeringtonp
Motivator

Is something else running on port 333 already? At the command line, try running netstat -an to check.

Also, if you are running Splunk as a non-root user, Splunk will not be able to bind to ports below 1024, as those ports are considered privileged.

Do you have the same problem with other port numbers, especially with port numbers above 1024?

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!

(re)Introducing the Splunk Community Champions + 2026 – 2027 Splunk MVPs ...

This program exists as a channel to empower and recognize Splunk advocates and help supercharge initiatives to ...

Introducing the 2026 - 2027 SplunkTrust cohort!

The goal of the SplunkTrust™ membership has historically been to acknowledge and recognize those who go above ...

Pro Tips for .conf26: How to Prep Like a Splunk Veteran

There’s no shortage of incredible content lined up for .conf26 in Denver, from deep-dive technical sessions ...