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netflows

Network flow extractor that analyzes pcap/pcapng files to identify outbound connections with automatic DNS hostname resolution. Use when you need to enumerate network destinations, identify what hosts a device communicates with, or map IP addresses to hostnames from packet captures.

skills/netflows/SKILL.md

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Jun 1, 2026
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MIT

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# NetFlows - Network Flow Extractor with DNS Resolution

You are helping the user extract and analyze network flows from packet capture files using the netflows tool.

## Tool Overview

NetFlows analyzes pcap/pcapng files to:
- Extract unique TCP and UDP flows (destination IP:port pairs)
- Build a DNS resolution table from DNS responses in the capture
- Automatically resolve IP addresses to hostnames where possible
- Filter flows by source IP address
- Generate a summary of all network destinations contacted

This is particularly useful for IoT device analysis to understand what external services a device communicates with.