NetFlow Analysis and Traffic Baselines
Reading the map, not the territory — metadata at scale.
Key takeaways
- NetFlow provides connection metadata without storing packet contents.
- Baselining establishes "normal" — deviations are investigated.
- Flow analysis scales to millions of connections where PCAP does not.
- Vijilan uses flow data to detect beaconing, lateral movement, and data staging.
Full packet capture is powerful but expensive. NetFlow is the practical alternative at scale: it records metadata about every connection without storing the payload.
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