I can recommend Debian as well, used its grsec flavour of the Linux kernel package for a few months on my desktops successfully. I would recommend taking a loo

I can recommend Debian as well, used its grsec flavour of the Linux kernel package for a few months on my desktops successfully. I would recommend taking a look at NixOS as well, they have it integrated and it can be as easy as adding an option to your system configuration. If you further add any customization, you will get a unique kernel build for your system, what is said to be ideal security-wise. You can read the details on their manual: http://nixos.org/nixos/manual/index.html#sec-grsecurity http://nixos.org/nixos/manual/index.html#sec-grsecurity