Splunk Enterprise Security

Match 2 log lines using common value and compare

mohanrajm
Explorer

Hi Guys,

I'm new to Splunk and trying to achieve the below requirements. Please help me.

If the system name is not started with "AUH" and if it's part of "corporate_VPN" then give the result in a table with the user name, computer name, and group name. user field has a common value between these 2 log lines but system name is from another log line.

2020-05-21 13:47:18 System4.Info 10.10.10.1 date=2020-05-21 time=13:47:45 devname="FW01-T1" devid="FG201" logid="39949" type="event" subtype="vpn" level="information" logdesc="SSL VPN statistics" action="tunnel-stats" tunneltype="ssl-tunnel" user="testuser" group="corporate_VPN" msg="SSL tunnel statistics"

2020-05-21 13:47:51 System4.Info 10.10.10.1 date=2020-05-21 time=13:47:51 devname="FW01-T1" devid="FG201" logid="45057" type="event" subtype="endpoint" level="information" logdesc="FortiClient connection added" action="add" status="success" connection_type="sslvpn" count=1 user="testuser" systemname="AUHWIN01" msg="Add a FortiClient Connection."

Regards,
Mohan

Labels (2)
0 Karma
1 Solution

richgalloway
SplunkTrust
SplunkTrust

This may help, but the results may be not great if there are multiple sets of events for the same user.

index=foo
| stats values(*) as * by user
| where match(group, "corporate_VPN") AND NOT match(systemname, "(?i)AUH.*")
---
If this reply helps you, Karma would be appreciated.

View solution in original post

richgalloway
SplunkTrust
SplunkTrust

This may help, but the results may be not great if there are multiple sets of events for the same user.

index=foo
| stats values(*) as * by user
| where match(group, "corporate_VPN") AND NOT match(systemname, "(?i)AUH.*")
---
If this reply helps you, Karma would be appreciated.

mohanrajm
Explorer

Thanks for your quick reply. I'm getting the unexpected results but due to case-sensitivity, I guess. how to match the system name even if it's case sensitive or not?

For Example:
AUH
auh
Auh

0 Karma

richgalloway
SplunkTrust
SplunkTrust

Use the case-insensitive flag (?i) in the regular expression. I've updated my answer to include it.

---
If this reply helps you, Karma would be appreciated.
0 Karma

mohanrajm
Explorer

Thank you so much for your support. It is working perfectly.

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Persistent Queue at TcpOut — One of Splunk's Most Practical Features

Splunk introduced persistent queueing at the tcpout layer as one of the most practical resilience features in ...

Skip the Awkward Silence: Have a .conf-ersation at .conf26

Picture this. You arrive at .conf26 already having your socializing and networking plans mapped out. No ...

Rethinking Zero Trust: From Product Purchases to Logical Control Evidence

Implementing Zero Trust (ZT) across complex environments often falters at the very beginning due to a ...