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Install fastnetmon with Homebrew, apt, dnf

DDoS detection tool with sFlow, Netflow, IPFIX and port mirror support. Version 1.2.9 via Homebrew; verified 2026-07-23. Also installable with debian: sudo apt install fastnetmon.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install fastnetmon

local Homebrew formula metadata

Linux

Debian aptverified · 92%
sudo apt install fastnetmon

Debian stable package indexes · fastnetmon · source: deb.debian.org

Fedora dnfverified · 92%
sudo dnf install fastnetmon

Fedora Rawhide package metadata · fastnetmon · source: dl.fedoraproject.org

overview

Package summary

DDoS detection tool with sFlow, Netflow, IPFIX and port mirror support

Commands and aliases

  • fastnetmon
  • fastnetmon_api_client
  • fastnetmon_client

history

Project history and usage

FastNetMon is a high-performance DDoS detection sensor for networks that ingest NetFlow, IPFIX, sFlow, AF_PACKET/SPAN, and other capture sources. It detects hosts with abnormal traffic volumes and can notify operators, run scripts, or trigger BGP-based mitigation.

Project history

The public FastNetMon repository dates to 2013 and the official documentation site has carried Community Edition documentation since 2016. The README now presents the open Community Edition alongside FastNetMon Advanced, a commercial edition from FastNetMon LTD.

Technically, the project grew around packet and flow ingestion rather than web-service monitoring: the README lists NetFlow v5/v9, IPFIX, sFlow v5, PCAP, AF_PACKET, AF_XDP, Netmap, and older PF_RING support. That breadth explains why the package has daemon, client, API-client, capture-backend, and router-integration concerns.

Adoption history

FastNetMon is aimed at network operators, hosting providers, and other teams that need fast traffic anomaly detection close to routers or mirrors. Its official support surfaces include a mailing list, Slack, IRC, Telegram, and Discord, which is a strong signal of an operator community around the tool.

The README points to Linux installation instructions, macOS installation through Homebrew, and a FreeBSD port, while its Repology badge tracks distribution packaging. The Community Edition release stream continued through the 1.2.x series, including 1.2.8 in 2024 and 1.2.9 in 2026.

How it is used

FastNetMon is configured as a sensor for local networks and thresholds. It watches packets, bytes, or flows per second, compares them with configured limits, and then executes configured actions such as notifications, callback scripts, ExaBGP or GoBGP announcements, and metric export.

The default Unix-style configuration path is /etc/fastnetmon.conf, with related network-list paths such as /etc/networks_list and /etc/networks_whitelist shown in the distributed sample configuration. It has no documented user credential file for the package itself.

Why package nerds care

FastNetMon is interesting to package maintainers because it is a real network daemon with a CLI client surface, fast-path packet capture integrations, BGP/router integrations, telemetry options, and a long-lived open/commercial split. Packaging it is less about installing one binary and more about preserving operational defaults.

Timeline

  • 2013: The public GitHub repository is created.
  • 2016: The official Community Edition documentation page is published.
  • 2022: FastNetMon Community 1.2.2 is released.
  • 2024: FastNetMon Community 1.2.8 is released.
  • 2026: FastNetMon Community 1.2.9 is released.

Related projects

  • FastNetMon commonly integrates with ExaBGP or GoBGP for BGP announcements and with systems such as Prometheus, Kafka, ClickHouse, InfluxDB, Graphite, Redis, MongoDB-compatible stores, and router vendors documented by the project.

security posture

Risk level: orange

broad file, network, media, or database tool signal. formula declares a Homebrew service.

Risk classifier

orange risk · medium confidence · infrastructure

Why

  • broad file, network, media, or database tool signal
  • formula declares a Homebrew service

Signals

  • metadata:service
  • text:client

Install behavior

  • No Homebrew bottle metadata was recorded.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix
/etc/fastnetmon.conf

executables

Installed executables

CommandKindExposureNote
fastnetmonexecutableindexed executableDiscovered from the local executable index.
fastnetmon_api_clientexecutableindexed executableDiscovered from the local executable index.
fastnetmon_clientexecutableindexed executableDiscovered from the local executable index.

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-03
manager version1.2.9
manager updated2026-07-23
local dataunknown
upstreamnot available
latest detectednot detected
  • okNo freshness warnings were generated.

install metadata

Package metadata

Package keybrew:fastnetmon
Version1.2.9
Package managerHomebrew
Homepagehttps://github.com/pavel-odintsov/fastnetmon/
Repositoryhttps://github.com/pavel-odintsov/fastnetmon
Last updated2026-07-23T12:28:16Z
Pulseupdated
Bottlenot recorded
Servicenone declared

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

fastnetmon 1.2.9-0+deb13u1

fast DDoS analyzer with sflow/netflow/mirror support (community edition)

https://fastnetmon.com/

sudo apt install fastnetmon
  • Section: net
  • Architecture: amd64
  • 24 dependencies
  • normalized package name match
  • Matched by: Fastnetmon
Debian stable package indexes · deb.debian.org · Debian stable package indexes: fastnetmon from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Ubuntu apt95%

fastnetmon 1.2.6-1build4

fast DDoS analyzer with sflow/netflow/mirror support (community edition)

https://fastnetmon.com/

sudo apt install fastnetmon
  • Section: universe/net
  • Architecture: amd64
  • 19 dependencies
  • normalized package name match
  • Matched by: Fastnetmon
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: fastnetmon from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
dnf95%

fastnetmon 1.2.9-2.fc45

DDoS detection tool with sFlow, Netflow, IPFIX and port mirror support

https://fastnetmon.com

sudo dnf install fastnetmon
  • License: GPL-2.0-only
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: fastnetmon
  • 27 dependencies
  • 4 provides
  • normalized package name match
  • Matched by: Fastnetmon
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: fastnetmon from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • Geiger risk classifier
  • cross-ecosystem install command graph
  • curated configuration and credential file locations
  • curated package history
  • external package-manager database matches
  • pkg.so package database
  • pkgdb category and tag curation