Splunk Search

Help with Rex or RegEx - Need Everything After a String

aferone
Builder

Here is an example of a VPN log with an error. I want to create a field for "Reason", which includes everything found after "Reason:", until the end of the line:

2014-02-26 11:26:05 -05:00 @vpn1 id=firewall time="2014-02-26 11:26:05" pri=6 fw=X.X.X.X vpn=vpn1 user=XXX realm="XXXX" roles="XXXXX" proto=auth src=X.X.X.X dst= dstname= type=vpn op= arg="" result= sent= rcvd= agent="" duration= msg="AUT22925: Host Checker policy 'Comp Configuration Check' failed on host X.X.X.X  for user 'XXX'. Reason: 'Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\XXX\not found; Registry key: HKEY_LOCAL_MACHINE\XXX\Plan not found; Registry key: HKEY_LOCAL_MACHINE\Wow6432Node\XXX\Plan not found; Registry key: HKEY_LOCAL_MACHINE\XXX\Plan  not found; Registry key: HKEY_LOCAL_MACHINE\Wow6432Node\XXX\Plan not found; Registry key: HKEY_LOCAL_MACHINE\XXX\Plan not found'."

Thanks!

Tags (2)
0 Karma
1 Solution

somesoni2
Revered Legend

Try this

your base search | rex "Reason:(?<Reason>.*)"

View solution in original post

somesoni2
Revered Legend

Try this

your base search | rex "Reason:(?<Reason>.*)"

aferone
Builder

Nailed it! Thank you!

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!

Your Feedback. Our Roadmap. Visit the PX Feedback Booth at .conf26

You use Splunk every day, come and help shape what's next.  Save Your Seat: Product-Focused Sessions at ...

Agentic SOC Triage: Investigating Splunk ES Notables with MCP Server and a Local LLM

The Problem: Too Many Alerts, Too Little Context Security operations teams running Splunk Enterprise Security ...

Painting a Clearer Picture: Creating Cross-Domain Visibility with AI Canvas

Watch Now Painting a Clearer Picture: Creating Cross-Domain Visibility with AI Canvas     Do you ever feel ...