OpenSnitch is a GNU/Linux interactive application firewall

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  • opensnitch

    OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.

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  • LuLu

    LuLu is the free macOS firewall

    There's Lulu based on Apple's Network Extension framework but there's quite a few issues with framework itself (it will briefly initiate a connection even though there's a deny rule for that address etc).

    https://github.com/objective-see/LuLu

  • nixos

    Yup. My configs can be found here: https://github.com/stusmall/nixos

    I tend to put all the random grab bags rules needed for basic functionality in the opensnitch.nix module. If a package needed rules it gets a module and they go in there. Check the signal.nix module for a good example

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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