Little Snitch, the macOS network tool, is now available on Linux
“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 network connections, and give you options to block them using rules. While Linux has native network monitoring tools, the best known being OpenSnitch (inspired by Little Snitch). None of those, as Christian puts it, gave him what he wanted: see which process are making which connections, and deny any a single click. So he built it.”
Compared to OpenSnitch, this app works via a browser tab, and can visualise at process level. It is not open source software though, like OpenSnitch is, but it is free to download and use on Linux. It does have both automated blocklists at domain level (such as Hagezi, Peter Lowe, Steven Black) and also rules that can target a specific process, port/s, or protocol/s.
By default, it is open access, but you can configure it for authenticated access too.
See
https://www.omgubuntu.co.uk/2026/04/little-snitch-linux or their site at
https://obdev.at/products/littlesnitch-linux/index.html
#
technology #
firewalls #
security #
Linux
Like Us
Support Hubzilla
