All Apps and Add-ons

how to resolve splunk permission denied for snmp port 162?

kiran331
Builder

Hi,

I'm trying to configure snmp modular input to listen snmp traps, I see the permission denied error in internal logs for snmp. We are using RHEL, how to use ip tables to route to different port? OR is there any other way to resolve this one?

0 Karma

Damien_Dallimor
Ultra Champion

You are most likely not running Splunk with a user that has permission for opening ports < 1024
Mentioned inline in the annotation for the port field on the setup page.

alt text

0 Karma

gmchenry
Explorer

What version of RHEL are you using? If you are using 7 or higher then you can just use the firewalld service and firewall-cmd to enable it.

NOTE: Make sure that all your host firewall rules aren't already using iptables.

if not already, enable firewalld
# systemctl start firewalld

Then start firewalld
# systemctl start firewalld

Just add the ports/services that you want to allow in:
# firewall-cmd --add-service=snmp --perm
(note: the --perm option makes it permanent after reloading)

Now just reload the firewall rules and you should be good to go.
# firewall-cmd --reload

To doublecheck that it was added, just run:
# firewall-cmd --list-services

You should now see "snmp" as one of the services.

0 Karma
Get Updates on the Splunk Community!

.conf24 | Day 0

Hello Splunk Community! My name is Chris, and I'm based in Canberra, Australia's capital, and I travelled for ...

Enhance Security Visibility with Splunk Enterprise Security 7.1 through Threat ...

 (view in My Videos)Struggling with alert fatigue, lack of context, and prioritization around security ...

Troubleshooting the OpenTelemetry Collector

  In this tech talk, you’ll learn how to troubleshoot the OpenTelemetry collector - from checking the ...