Book Image

Splunk 7 Essentials - Third Edition

By : J-P Contreras, Steven Koelpin, Erickson Delgado, Betsy Page Sigman
Book Image

Splunk 7 Essentials - Third Edition

By: J-P Contreras, Steven Koelpin, Erickson Delgado, Betsy Page Sigman

Overview of this book

Splunk is a search, reporting, and analytics software platform for machine data, which has an ever-growing market adoption rate. More organizations than ever are adopting Splunk to make informed decisions in areas such as IT operations, information security, and the Internet of Things. The first two chapters of the book will get you started with a simple Splunk installation and set up of a sample machine data generator, called Eventgen. After this, you will learn to create various reports, dashboards, and alerts. You will also explore Splunk's Pivot functionality to model data for business users. You will then have the opportunity to test-drive Splunk's powerful HTTP Event Collector. After covering the core Splunk functionality, you'll be provided with some real-world best practices for using Splunk, and information on how to build upon what you've learned in this book. Throughout the book, there will be additional comments and best practice recommendations from a member of the SplunkTrust Community, called "Tips from the Fez".
Table of Contents (10 chapters)

Advanced searches

There are various kinds of advanced searches you may need as you plan out how to create searches and dashboards for your data. Consider the ones that we present, for they will help you design queries that are more efficient and cost effective.

Subsearch

A subsearch is a search within a search. If your main search requires data as a result of another search, use Splunk's subsearch capability to combine two searches into one.

Say you want to find statistics about the server that generates the most HTTP status 500 errors. You can achieve your goal of finding the culprit server with two searches.

The first search, shown next, will return the server address with the most 500 errors. Note that you are setting...