Alerting

host communication to the internet

shanaz
Engager

Hi, I am trying to create an alert for hosts that are communicating to the internet. Want to know the destinations. 

But have a lot of trusted destinations to exclude (Aprox. 2800). 

The below query gives me all the trusted destinations+other. 

index=net sourcetype=proxy dest!=10.1.* 10.2.* sc_status=200 c_ip IN (10.1.10.* 10.1.11.* ) | lookup dnslookup clientip as c_ip OUTPUT clienthost as DNSName
| stats count by c_ip DNSName dest sc_status

Please let me know of any solution. 

 

Labels (1)
Tags (2)
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!

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 ...

All Work and No Play? Not at .conf26! Unwind at These Evening Events

Between hands-on technical sessions, keynote reveals, and diving into live architectures, .conf26 is packed ...

Join the Hackathon at .conf26 and build a No-Code AI agent

Join us for the AI Agent Buildathon, an in-person, three-hour hands-on Hackathon where you’ll use Splunk Agent ...