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pavel-odintsov/fastnetmon

Very fast DDoS sensor with sFlow/Netflow/IPFIX/SPAN support observed · 2026-08-28

github.com/pavel-odintsov/fastnetmon · C++ · GPL-2.0 (copyleft) observed · 2026-08-28

Health v2 · maintenance only

81/100

  • Activity 93
  • Release rhythm 54
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: 531
  • age_days: 4702
  • days_rel: 94
  • days_push: 44
  • n_releases_24m: 2

Full methodology

Adoption not part of the score

3695 stars · 588 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

FastNetMon Community Edition is a high-performance DDoS detection sensor that analyzes traffic from NetFlow, IPFIX, sFlow, AF_PACKET, and other capture engines. It detects hosts sending or receiving abnormal traffic volumes within seconds and can notify operators, run scripts, or announce blocked IPs via BGP.

Use cases

  • detect ddos attacks on my network in real time
  • collect and analyze netflow and sflow traffic data
  • automatically block attacking ips via bgp announcements
  • monitor traffic thresholds per subnet with alerts
  • export flow data to kafka or prometheus
  • set up a ddos sensor for an isp network

When to choose

  • you need fast (1-2 second) DDoS detection at terabit scale from flow data or port mirrors
  • you want automated mitigation hooks like BGP blackholing via ExaBGP or custom scripts
  • you run a multi-vendor network (Cisco, Juniper, MikroTik) exporting NetFlow/sFlow/IPFIX

When to avoid

  • you need full-featured mitigation, GUI, and support - the Advanced commercial edition may fit better
  • you only need simple bandwidth graphing rather than attack detection
  • you cannot run a dedicated Linux sensor or collector

Facets

application · maturity active

monitoring alerting networking analytics networking security monitoring self-hosted bsd cpp cli ddos-detection netflow sflow ipfix bgp-mitigation traffic-analysis prometheus kafka linux macos

1 source

Member repositories

RepositoryRoleHealth v2
pavel-odintsov/fastnetmonmain81

For agents

markdown · JSON · MCP: product_card(name="pavel-odintsov/fastnetmon")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem