Splunk is a tool that indexes and searches data to generate graphs, alerts, and dashboards. It can analyze data from sources like logs, metrics, and other sources on both local and remote machines. Key concepts in Splunk include indexes which are databases that store events, which are individual data entries that are broken down and tagged with metadata during indexing. Searches in Splunk return results in tabs for events, statistics, and visualizations.

1. Splunk Overview
Daniel Hernandez
• Twitter: @dnlstkmty
November 2015

2. What is Splunk?
[4] Splunk is a tool that can be used to index, and search
data. Splunk can generate graphs, alerts, and dashboards
for this data.

3. What kind of data is used by Splunk?
[5] IT streaming and historical data. Data from:
1. Event logs (e.g. event viewer logs)
2. Web logs (e.g. IIS logs)
3. System metrics (e.g. Windows performance counters)
4. And Others sources

4. Splunk local, and remote data
Data used by Splunk can be on the same machine (local
data), or in a remote machine (remote data)

5. Splunk Concepts
Index. Data repositories created in splunk are called
Indexes. An index is a database.
Event. A single piece of data in Splunk is called Event [6].
Examples - single record or entry in a log file.
- single record or entry in the event viewer.

6. Splunk Indexing
When Splunk indexes data, it breaks up the data into
individual pieces and gives each piece a timestamp, host,
source, and source type.

7. Splunk Search Elements
Step 2 Step 3
Search
Sub-
search
Index
Source
Source
Type
Host
Results
Step 1

8. Splunk Search Concepts
• Index. An Index is a data repository in Splunk.
• Host. Host is the name, or IP address of the network machine that
originated the event.
• Source. Source is the file, directory path, network port, or script
from which the event was originated.
• Source Type. Source Type classify the data based on how it is
formatted.

9. Installing Splunk
• Splunk installation can be done by following the steps described
in the below URL:
http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchTu
torial/Systemrequirements

10. Getting Familiar with Splunk
• Get familiar with Splunk Enterprise:
http://docs.splunk.com/Documentation/Splunk/latest/SearchT
utorial/NavigatingSplunk

11. Getting Data into Splunk
• Get data into Splunk Enterprise:
http://docs.splunk.com/Documentation/Splunk/latest/SearchT
utorial/GetthetutorialdataintoSplunk

12. Splunk Search & Reporting – UI elements
Application
Bar
Search Bar
Time Rage
Picker

13. Splunk Search & Reporting

14. Splunk Search & Reporting’s panels
How to
Search
What to
Search

15. Splunk Search – Search Result Tabs

16. Splunk ‘What to Search’ panel
Data Summary
Hosts Sources
Source
Types

17. Splunk ‘What to Search’ panel

18. Splunk Search
Elements available after searching in Splunk
Search Result Tabs
Search Action Buttons
Search Mode Selector
‘Save as’ menu

19. Splunk Search

20. Splunk Search – Search Result Tabs
Search Result Tabs
Events
Statistic
Visualization

21. Splunk Search – Search Result Tabs

22. Splunk Search Results – Events Tab
Events Tab
Timeline of events
Events view options
Field sidebar
Search term matches

23. Splunk Search Results – Events Tab

24. Splunk Search Results – Events Tab
• Shows how many events have occurred at a particular
point in time.
Timeline
• When data is indexed, Splunk extract information from
the data that is formatted as name and value pairs.
Fields sidebar

25. Splunk Search Results – Events Tab
• Shows the events that match the search criteria.
Search term matches
• Shows menus with options to format the search
results.
Event view options

26. Searching Data using Splunk
• To search for events / logs in Splunk, go to Splunk Search page.
1. In the Search textbox, type the word(s) you want to search
2. Specify filters to narrow the search result such as host or source
3. Click on the Search icon

27. Searching Data using Splunk

28. Searching Data using Splunk
• Additional details about searching data in Splunk can be found in
the below link:
http://docs.splunk.com/Documentation/Splunk/6.3.0/SearchTu
torial/Startsearching

29. References
1. Splunk for SQL Users.
http://www.innovato.com/splunk/SQLSplunk.html
2. Splunk Search Tutorial.
http://docs.splunk.com/Documentation/Splunk/latest/SearchTutori
al/WelcometotheSearchTutorial
3. Splunk Search Reference.
http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchRefere
nce/SearchCheatsheet
4. About Splunk Enterprise
http://docs.splunk.com/Documentation/Splunk/latest/Overview/Ab
outSplunkEnterprise

30. References
5. About getting data into Splunk Enterprise.
http://docs.splunk.com/Documentation/Splunk/latest/SearchTutori
al/AboutgettingdataintoSplunk
6. Event
http://docs.splunk.com/Splexicon:Event
7. Splunk Installation Manual.
http://docs.splunk.com/Documentation/Splunk/6.2.0/Installation/I
nstallonWindows
8. About Splunk Free
http://docs.splunk.com/Documentation/Splunk/latest/Admin/More
aboutSplunkFree

31. References
9. Get the tutorial data into Splunk
http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchT
utorial/GetthetutorialdataintoSplunk
10.About the Search Tutorial
http://docs.splunk.com/Documentation/Splunk/latest/SearchT
utorial/WelcometotheSearchTutorial
11.Splunk download. http://www.splunk.com/download