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Back in 2000, there was something like that for the kernel with SELinux (Security-Enhanced Linux). Which continues to live in various distributions’ kernels. Not a full O/S though, and not generally regarded as a PoS.
I always found it to be a real PITA… It felt like a parallel system to file permissions, which meant I had two things to configure instead of one and I never really saw the purpose. It seemed like it could be more granular than the default, but if it did anything more than that I never learned about it
Granted, I’m a dev, not an admin. I go back and configure the firewall after I shut it off because it was in my way… Eventually
Back in 2000, there was something like that for the kernel with SELinux (Security-Enhanced Linux). Which continues to live in various distributions’ kernels. Not a full O/S though, and not generally regarded as a PoS.
I always found it to be a real PITA… It felt like a parallel system to file permissions, which meant I had two things to configure instead of one and I never really saw the purpose. It seemed like it could be more granular than the default, but if it did anything more than that I never learned about it
Granted, I’m a dev, not an admin. I go back and configure the firewall after I shut it off because it was in my way… Eventually