1.2 What is Splunk?

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Time
1 hour 59 minutes
Difficulty
Beginner
CEU/CPE
2
Video Transcription
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>> Hello, and thanks for coming back.
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I'm Natasha, and in this section we're going to enter
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the deceptively simple question of, what is Splunk?
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Splunk is a company worth
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several billion US dollars
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and based out of San Francisco.
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It specializes in data use and processing.
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Splunk has multiple different products.
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But when you refer to just Splunk,
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people most often think of
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the Splunk platform and its core capabilities,
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or they may just think about
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whatever they have set up at their company.
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Splunk Enterprise, Splunk Cloud, Splunk Free,
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and Splunk Light makeup what is
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thought of as a Splunk platform.
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In future videos,
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we'll discuss the differences between
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these and talk about other products.
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This course will focus on the common uses of
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the popular Splunk Enterprise and Splunk Free,
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and briefly cover the capabilities of
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other products that typically build on this platform.
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The company sums up its purpose as
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Splunk turns machine data into answers.
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To dig a little deeper, Splunk software aggregates,
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processes, analyses, and helps you
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use small and massive amounts of data.
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It's particularly helpful for turning
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unstructured data into usable information.
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Some examples include ingesting
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authentication logs and alerting
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when there have been high-volume failures,
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or it could collect web traffic data
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and provide statistics on visitor activity.
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Another example would be storing some data
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to let an admin search for
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information to troubleshoot a problem.
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You could retrieve malware alerts
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and correlate it with other activity,
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or use a lookup to define error codes
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and organize a problem in human-readable format,
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gather IoT data and provide meaningful metrics,
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sort and store information required for an audit,
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and tons of other uses.
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Splunk has a strong community
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built around its product including forums,
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conferences, and even local events in many places.
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Its growth has exploded over the last few years,
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but was founded back in 2003.
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The easiest way to get a grasp on
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Splunk might be to take a quick look.
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Here's a relatively empty instances
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Splunk Enterprise I have running on a virtual machine.
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I am searching for some data,
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just traffic on this machine,
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and I found 320 events in the last hour.
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We're going to look at a single event here,
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I can pull this up and see the raw text.
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This itself would be hard for us
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to work with, but as you see here,
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it breaks it out into different fields that I can then
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use for other tasks.
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Right here, I could run a simple search
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where I look at how many events
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have happened in this data by app.
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There we are. Now we've got to our quiz, true or false.
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Splunk can only handle parsed data?
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The answer is false.
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Splunk is great for organizing raw data.
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To sum up what we've learned in this section,
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Splunk takes data that's difficult to handle,
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maybe because there's so much of it,
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or because it's unorganized or meaningless on its own,
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and makes it usable in a variety of ways,
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such as for a reporting, alerting, troubleshooting,
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threat hunting, making business decisions, and so on.
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In the next video, we're going to be talking about
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Splunk and your career. Thanks for watching.
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