Getting Data In

Unable to send data from an Universal Forwarder to a Splunk Server

fstuder
New Member

Hello,

I'm new to splunk and I'm currently trying to set up a communications from a Universal Forwarder + Syslog NG server to a Splunk server.

CONFIG

On UForwarder side

Inputs
[default]
host = syslog01.abc.local
[monitor:////var/log/syslog-ng/logs/cisco/$HOST/$YEAR-$MONTH-$DAY-cisco.log]
sourcetype = syslog
index = cisco
disabled = false
host_segment = 6

Outputs

[tcpout]
defaultGroup = default-autolb-group

[tcpout:default-autolb-group]
server = @.220:9997

[tcpout-server://@.220:9997]

On Splunk server side

[default]
host = frontlog.abc.local
[splunktcp://9997]
disabled=0

SHOWS

On Forwared side

[root@syslog01 local]# netstat -anp | grep 9997
tcp 0 1 @.219:48676 @.220:9997 SYN_SENT 2762/splunkd

07-08-2016 06:59:51.093 +0200 WARN TcpOutputProc - Cooked connection to [email protected]:9997 timed out
07-08-2016 07:00:21.094 +0200 WARN TcpOutputProc - Cooked connection to [email protected]:9997 timed out
07-08-2016 07:00:43.602 +0200 WARN TcpOutputProc - Forwarding to indexer group default-autolb-group blocked for 3400 seconds.
07-08-2016 07:00:51.093 +0200 WARN TcpOutputProc - Cooked connection to [email protected]:9997 timed out
07-08-2016 07:01:21.093 +0200 WARN TcpOutputProc - Cooked connection to [email protected]:9997 timed

On server/receiver side:
tcp 0 0 0.0.0.0:9997 0.0.0.0:* LISTEN 7969/splunkd

Nothing relevant on splunkd.log
I've been able to telnet the server on port 9997.

Thanks
Best regards
Franck

Tags (2)
0 Karma

ryanoconnor
Builder

Can you telnet from your UF to your indexer on port 9997?

0 Karma

ddrillic
Ultra Champion

We see -

-- 07-08-2016 06:59:51.093 +0200 WARN TcpOutputProc - Cooked connection to [email protected]:9997 timed out

The following speaks about a similar issue - cooked connection timed out?

The issue there was - found the issue - missing indexer cert.

Maybe a similar thing is in your case...

More about it at TcpOutputProc - Cooked connection to ip=x.x.x.x:9997 timed out

0 Karma

horsefez
Motivator

Do you have set compressed = true on UF or indexer side?

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!

Painting a Clearer Picture: Creating Cross-Domain Visibility with AI Canvas

Watch Now Painting a Clearer Picture: Creating Cross-Domain Visibility with AI Canvas     Do you ever feel ...

Build and Launch AI Agents from Your Splunk Workflows

Replay Tech Talk Build and Launch AI Agents from Your Splunk Workflows     We’ve all been there: juggling ...

index This | What kind of room has no doors?

IndexEducation Cover Art Banner Cisco.png August 2026 Edition  Hayyy Splunk Education Enthusiasts and the ...