Additional SSL Verification

New Member

Hey everyone.
First time SSL setup (IDX & UF both v8.x) and cert creation (never done before). Had a question about verifying if things worked. I walked through splunk docs and got to the point of verifying connection.

On my IDX i can run:

index=_internal source=*metrics.log* group=tcpin_connections | 
dedup hostname | table _time hostname version sourceIp destPort ssl

I do get expected result returned port (9998) and SSL = true.
BUT this was the only part of the instructions that i could follow to verify SSL items. I can't find anything else within Splunkd or index=_* referencing what is being mentioned in the validating procedures for the UF portion. I can see that the UF has the following output in splunkd "Connected to idx=". This UF is only setup to forward to the one server over port 9998.

The next steps i followed where on this page

openssl s_client -connect <server>:<port>

and the expected output mentioned Verify return code: 0 (ok) was instead returning code: 18 (self signed certificate).
Then on the UF i attempted to monitor a random log file that i update. On the main Splunk server i can see the data come in.
I'm just second guessing if i did things correctly given i wasn't able to validate internal Splunk logs.


 sslRootCAPath = /opt/splunkforwarder/etc/auth/myCerts/myCACertificate.pem
 sslPassword = <with pass here>
defaultGroup = group1
 server =
 disabled = 0
 clientCert = /opt/splunkforwarder/etc/auth/myCerts/myNewSplunkForwarderCert.pem
useClientSSLCompression = true
sslPassword = <with pass here>


disabled = 0
serverCert = /opt/splunk/etc/auth/myCerts/myNewSplunkIndexerCert.pem
sslPassword = <with pass here>
requireClientCert = "true"
 sslRootCAPath = /opt/splunk/etc/auth/myCerts/myCACertificate.pem
 sslPassword = <with pass here>
Labels (2)
Tags (2)
0 Karma
Speak Up for Splunk Careers!

We want to better understand the impact Splunk experience and expertise has has on individuals' careers, and help highlight the growing demand for Splunk skills.