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Thanks for the info. I'll look into Landlock.

I'm totally fine changing the way I write my applications to make them more secure. I just don't feel like the APIs are there.

Personally I think capability-based security models is the best idea I've seen so far. Set up the file descriptors and network sockets your program needs at startup, then drop any other privileges. The problem is file descriptors don't cover things like directory trees AFAIK.

If performance isn't critical, what are your thoughts on using QEMU to wrap an application for security purposes? That might even work on Windows.



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