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FlowSphera

A self-hosted flow analyzer. It reads NetFlow, IPFIX and sFlow from your firewalls, routers and switches and shows who talks to whom, which applications they use and where a link really has a problem.

Version 2.4.0Elastic License 2.0 (source-available)Linux, x86_64 and arm64
FlowSphera overview page

Why FlowSphera

FlowSphera path analysis with traffic moving along links
  • Ready in minutes. One command installs everything — database, web interface, HTTPS — and hands you a ready-made configuration for your device.
  • Numbers you can trust. Correct accounting of long sessions, sampling and duplicate exports; every lost packet is counted and shown, never silently dropped.
  • See the path, not just the flows. How traffic crosses your devices, interface by interface, and which link really has a problem.
  • Security built in. Port scans, password guessing, floods, contact with known malicious addresses, links running full, with alerts to Telegram, e-mail, webhooks and your SIEM.
  • Made for the wall. Live maps, a 3D globe and animated traffic views that run full screen on a NOC display.
  • Yours. Self-hosted, no cloud, no telemetry. Every feature is free; a license only raises the limits.
  • Reports that arrive. A PDF for management or the duty engineer, daily, weekly or monthly by e-mail, or for exactly the incident on your screen.
  • Fits your company. Sign in with Active Directory or LDAP; roles from your groups; local accounts stay as a way in.
  • Connects to your tools. API tokens for scripts and monitoring, webhooks for chats and your own systems, syslog (CEF or JSON) for the SIEM.
FlowSphera applications pageFlowSphera PDF report

Works with

Anything that exports NetFlow v5/v9, IPFIX or sFlow. Setup guides: FortiGate, MikroTik; Palo Alto and Cisco in the exporter documentation.

Install

Debian, Ubuntu, Fedora, RHEL, Rocky and Alma, x86_64 or arm64. See Install, upgrade and server commands.

Editions

Community is free: up to 5,000 records per second and 30 days of history, with every feature. A Pro license raises the limits. See pricing and editions in detail.