Day 3 is here . Part 1   This one isn't too difficult. Given a series of digits such as 818181911112111, we need to pick two digits (conserving the order) to make the highest 2-digit number possible, so in this example 92. The first digit is obviously the most important, so we always want the highest one available, but we need to reserve at least one digit at the end of the bank for the second digit.   So take the bank, remove the last digit, and find the highest digit: Now f

(Edited to use mvrange) Day 2 of the 2025 advent of code challenges is here: https://adventofcode.com/2025/day/2 You won't be able to do it if you haven't done day 1 first . We can break down this challenge in several steps: given a range (e.g. 11-22), enumerate all the IDs within the range (e.g. 11,12,13,...,22) given a number, assess whether it's made of 2 repeated halves somehow do this for all the ranges all together to get the solution Step 1 For this challenge, we'll s

Advent of code is a series of Christmas-themed programming challenges that's been running for more than 10 years now. While SPL is not exactly a fully-fledged programming language, I had heard in the past of at least one person (thank you Paul Dean for the idea!) attempting to do the challenges in SPL and this year I thought I would give it a go. I know it's more than a month too late, but this is the first of a series of articles tackling 2025's challenges in SPL. We won't

Windows events are a large part of the volume of logs ingested in a lot of splunk deployments. Wouldn't be cool if we could shrink them so they don't eat up so much precious precious license? In this post I'll walk through how I rebuilt Windows Event Logs (WELs) into a compact, Splunk-friendly format, cuting size by up to 60% without breaking field extractions. Key takeaways With a few targeted ingest actions and props/transforms tweaks, you can shrink Windows logs dramatical

The key thing I did not appreciate when I wrote the previous version of this post is that the Risk data model is now fed from...

Since RBA is all about aggregating security events that are related to the same entity, Assets & Identities normalisation is crucial to...

These 3 table-manipulating commands are occasionally very useful but they are also quite confusing. For years, I've relied on the...

On the 18th of September 2024 I gave a talk on this topic at the London Splunk User Group meetup. Ingest Actions are a simple feature of...

I have been nominated for a 2023 Splunkie Award and I am delighted to be a finalist for the Inventor Award! https://conf.splunk.com/the-s...

In this post we’re discussing an advanced way to dedup risk events in your risk alerts (RIRs) and at the same time have the RIR results...

Use this page as a quick way to find which areas of this website have value for you. My apps ES Choreographer : manage ES correlation...

This is the documentation for the Conf Manager app on splunkbase. This app allows you to search your knowledge objects and track their...

This for the most part isn't splunk-specific, but if you do any amount of administration on the linux command line, you might find it...

Assess your search workload with this simple dashboard. Here's a very quick dashboard to identify what uses your splunk platform...

This is the documentation for the ES-Choreographer app on splunkbase. This app offers various frameworks to help manage and improve...

This is the documentation for the GV-Utils app on splunkbase. This app offers various utilities to solve a number of problems in Splunk:...

Splunk’s “simple XML” dashboards are reasonably simple and straightforward to create, yet they are incredibly versatile and powerful. You...

I did a talk at Splunk .conf21 about how to maintain correlation searches: pdf / mp4 . If you’re looking for the source code for the...

I did a talk at Splunk .conf21 about how to maintain correlation searches: pdf / mp4 . One of the topics is Correlation Searches Best...

I did a talk at Splunk .conf21 about how to maintain correlation searches: pdf / mp4 . One of the topics is morning checks. Basically you...