Splunk Search

Use of NOT operator

lbogle
Contributor

Hello Splunkers,
I'm trying to run a search against some logs that include a wild carded hostname, two error messages but exclude two IP addresses. I have the first parts down but excluding the IP addresses isn't quite working out. What am I doing wrong here? (IP's modified for the post)

host="*-contlr-wl.Domain.COM" error OR fail* admin NOT (123.123.123.123 AND 456.456.456.456)

So I'm getting all reports from contlr-wl machines.
I'm getting all the messages that have either error OR fail* in them
But the two IP addresses are still showing up. How do I exclude those from my search?
Thanks everyone.

Tags (2)
0 Karma
1 Solution

lukejadamec
Super Champion

You are telling the search engine to only exclude the IPs if they both appear in the same event.

Try

NOT "*123.123.123.123*" NOT "*456.456.456.456*"

View solution in original post

lukejadamec
Super Champion

You are telling the search engine to only exclude the IPs if they both appear in the same event.

Try

NOT "*123.123.123.123*" NOT "*456.456.456.456*"

lbogle
Contributor

Awesome! That did it!
Thanks!

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!

May 2026 Splunk Expert Sessions: Security & Observability

Level Up Your Operations: May 2026 Splunk Expert Sessions Whether you are refining your security posture or ...

Network to App: Observability Unlocked [May & June Series]

In today’s digital landscape, your environment is no longer confined to the data center. It spans complex ...

SPL2 Deep Dives, AppDynamics Integrations, SAML Made Simple and Much More on Splunk ...

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...