Splunk Search

How to search users who had concurrent access on different PCs within the same logon and logoff period from my sample data set?

hkhat5
New Member

Sample data set

user, pc, logon, logoff, durationOfLogon
User11, HNA1E8I, 01-06-15 13:49:09, 01-06-15 13:49:11, 0:00:02
User138, HN2OTS12, 05-06-15 13:02:33, 05-06-15 13:02:36, 0:00:03
User160, H3NB3RA, 05-06-15 10:29:14, 05-06-15 10:29:16, 0:00:02
User174, HN4WF101, 03-06-15 11:55:43, 03-06-15 11:55:46, 0:00:03
User237, 3HND5,     01-06-15 11:00:21, 01-06-15 11:00:29, 0:00:08
User237, 3HND5I22, 01-06-15 11:00:22, 01-06-15 11:00:23, 0:00:01
User36, 4HNAE3I, 03-06-15 12:47:46, 03-06-15 12:47:48, 0:00:02
User379, 4HND5A, 03-06-15 11:19:40, 03-06-15 11:19:40, 0:00:00
User386, 4HNE4A, 07-06-15 16:33:51, 07-06-15 16:33:53, 0:00:02
User62, 6HNAE3I, 03-06-15 18:32:31, 03-06-15 18:32:34, 0:00:03 
User640, 34HNF4, 01-06-15 10:04:19, 01-06-15 10:04:21, 0:00:02 
User640, 5NF4, 04-06-15 16:04:18, 04-06-15 16:04:20, 0:00:02 
User747, NOCC01, 01-06-15 12:37:02, 01-06-15 12:37:03, 0:00:01
User747, 23NOCC03, 02-06-15 8:42:20, 02-06-15 8:42:26,  0:00:06
User747, ATPH02,     02-06-15 8:42:23,  02-06-15 8:42:25,   0:00:02
User790, 4HN2Y12, 03-06-15 15:29:33, 03-06-15 15:29:35, 0:00:02
User790, 3HNPHY02, 03-06-15 15:29:33, 03-06-15 15:29:40, 0:00:07

How can I create an search to find out the users with concurrent access on different PCs within the logon and logoff period?

Thanks

Kelvin

0 Karma

dturnbull_splun
Splunk Employee
Splunk Employee

You can do this by splitting each event into a logon event and a logoff event, assuming logon time is _time:

sourcetype=logons | eval count=1 | appendpipe [| eval _time = strptime(logoff, "%d-%m-%y %H:%M:%S") | eval count=-1] | sort + _time | streamstats sum(count) as concurrency by user global=f | where concurrency > 1 
0 Karma

hkhat5
New Member

Hi dturnbull,

Thanks for your reply.

However, the query seems not working on my situation. The result is not match when compare with the raw data. Here is the search query - "index=sample1 UserId!="User" | eval count=1 | appendpipe [ | eval _time = strptime(LogoffTime, "%d-%m-%Y %H:%M:%S") | eval count=-1 ] | sort + _time | streamstats sum(count) as concurrency by UserId global=f | where concurrency > 1 | table Site UserId WorkStationId LoginTime LogoffTime | sort 0 + Site"

The way i am using now is "JOIN", but this is very slow and i know might have some smart way to do it.

Thanks for your help

Kelvin

0 Karma
Get Updates on the Splunk Community!

Routing logs with Splunk OTel Collector for Kubernetes

The Splunk Distribution of the OpenTelemetry (OTel) Collector is a product that provides a way to ingest ...

Welcome to the Splunk Community!

(view in My Videos) We're so glad you're here! The Splunk Community is place to connect, learn, give back, and ...

Tech Talk | Elevating Digital Service Excellence: The Synergy of Splunk RUM & APM

Elevating Digital Service Excellence: The Synergy of Real User Monitoring and Application Performance ...