OphanimFlow

Spec sheet

Purpose

OphanimFlow collects, classifies, and visualizes NetFlow, IPFIX, and sFlow traffic for hosts on specified networks.Read 11 Oct 2026 · github.com

License

The repository identifies the project as GPL-3.0 licensed.Read 11 Oct 2026 · github.com

API access

The README says API endpoints are accessible without authorization and describes an ENDPOINTS_HOSTS option to restrict which host IPs can access them.Read 11 Oct 2026 · github.com

Collector defaults

The documented default NetFlow UDP port is 42112, the sFlow port is 6343, and the sampling rate is 100.Read 4 Oct 2026 · github.com

Collectors

NetFlow/IPFIX and sFlow collectors can run simultaneously and share network configuration and database tables.Read 11 Oct 2026 · github.com

Data retention

Since release 0.0.5, OphanimFlow automatically rotates and flushes old data, reserving 10% of total storage by default.Read 11 Oct 2026 · github.com

External use

The README says the REST API can provide preprocessed data and graphs for use in external apps.Read 4 Oct 2026 · github.com

Graph API

The REST API can return traffic graphs as PNG images, with options for IP address, direction, time period and image dimensions.Read 4 Oct 2026 · github.com

Initial credentials

The setup instructions give the default login as admin and password as demo, and advise changing the password in user profile settings.Read 4 Oct 2026 · github.com

Installation

The README provides batch setup instructions for FreeBSD 14.4/15.0/15.1 and Debian 13.0 trixie.Read 11 Oct 2026 · github.com

Intended use

The README describes OphanimFlow as a replacement for bandwidthd and Stargazer cap_nf for network traffic collection and visualization.Read 11 Oct 2026 · github.com

REST API

The REST API provides graph images and traffic-summary data for use in external applications.Read 11 Oct 2026 · github.com

Supported setup systems

The README provides batch setup instructions for FreeBSD 14.4/15.0/15.1 and Debian 13.0 trixie.Read 4 Oct 2026 · github.com

Traffic accounting

The toolkit provides bandwidth graphs and basic traffic accounting for each host.Read 11 Oct 2026 · github.com

Traffic summary API

The gettraff endpoint returns upload and download byte totals for all hosts or a specified IP, with optional year and month parameters.Read 4 Oct 2026 · github.com

Web interface

After setup, a web interface lets users specify networks and make minimum settings; the README says to change the default admin password in profile settings.Read 11 Oct 2026 · github.com

Where Specifiction places it

• Bandwidth Monitoring Software#30 of 336.8