plugins: kafka aggregate: src_host, dst_host, src_port, dst_port, proto, tos, src_as, dst_as kafka_topic: netflow_raw kafka_broker_host: kafka1:9092,kafka2:9092 imt_path: /var/spool/pmacct - Top talkers last hour:
(v5 to collector 192.168.1.100):
: 30-day retention, detect botnet C2, per-department billing. netflow tools
set forwarding-options sampling input rate 1000 set forwarding-options sampling family inet output cflowd 192.168.1.100 port 2055 version 5 : plugins: kafka aggregate: src_host
ip flow-cache timeout active 1 # Export every 1 min (active flows) ip flow-cache timeout inactive 15 # Export after 15 sec idle ip flow-cache timeout fast 30 # For TCP FIN/RST : Shorter timers = more exports = higher CPU/network load. Longer timers = delayed visibility. 3. NetFlow Tool Stack Architecture A production NetFlow deployment has four layers : Layer 1: Exporters (Network Devices) Configure routers/switches/firewalls to send NetFlow. detect botnet C2
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