Splunk Search

anonymized data

gregwilliams
Path Finder

We are conducting a study in our organization surrounding productivity and user behavior. Currently I'm receiving all firewall logs which is logging all user activity. The people who are conducting the study want to see traffic for one week and then send out an email reminding them to only use the internet for business purposes. This data needs to be anonymized, but not completely anonymized.

I am using sed to replace src=111.222.333.444 with src=############, but was wondering if there is anyway to replace the src=111.222.333.444 with something isn't completely randomized, for example, change the 444 into aaa so we can track whether or not productivity increases and random traffic decreases after we send the nice email out.

Tags (2)

Ron_Naken
Splunk Employee
Splunk Employee

This should change the last octet to aaa for an IP address:

| rex field=src mode=sed "s/(\d+\.)(\d+\.)(\d+\.)(\d+)/\1\2\3aaa/g"
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!

Automated Threat Analysis: Available in ES Premier

Automated Threat Analysis: Centralize and Accelerate Phishing Investigations in Splunk Enterprise ...

What’s New in Splunk AI: Volume 02

Welcome to the second edition of “What’s New in Splunk AI” where we look at the latest and greatest updates, ...

Best Practices: Splunk auto adjust pipeline queue

When you enable autoAdjustQueue in Splunk, maxSize should be understood as the queue size Splunk starts with ...