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Tag: firewalls

nfSensei is an open source spiritual successor of pfSense, by the original creator, for Linux

2026-08-162026-08-16 Danie
nfSensei logo with tagline "The Way of the Firewall" highlighting open-source, API-first, and blazing-fast packet processing.

“nfSensei is a modern network operating system built from scratch in Rust with a React frontend, designed around a single principle: one API to rule them all. The CLI, the web UI, and the on-device […]

Blogfirewalls, nfsensei, opensource, pfsense, technology

Little Snitch, the macOS network tool, is now available on Linux

2026-04-082026-04-08 Danie
Little Snitch for Linux app showing network connections, traffic data, activity times, and detailed connection rules and stats.

“Little Snitch for Linux is written in Rust and uses eBPF for kernel-level traffic interception (this lets sandboxed code run inside the Linux kernel without modifying it). The tool shows processes on your machine making […]

Blogfirewalls, linux, security, technology

OpenSnitch is a comprehensive open source Linux application firewall

2024-10-232024-10-23 Danie
Two open windows. One on the left is a popup titles Firefox ESR and stating that Firefox ESR is connecting to lwn.net on TCP port 443, and has button optiosn for Allow, Deny, for this session, and from this command line. The right window is titled OpenSnitch Network Statistics, and is a long list of connections showing for each one the time, node, action, destination, protocol, and the process.

This is not a simple firewall to get started with as it can be a bit of an uphill battle to get all the outgoing connections vetted (if you want to filter those), but I’d […]

Blogfirewalls, opensource, security, technology
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