Session 4: OS and applications security

Concepts

Lets take a step back on this week topic

Recap on OS

Security oriented OS: Murena, Graphene, Whonix an OS inside a VM, here a list “Windows is the least secure OS”

Let’s go back to what kernel represents and the types of kernel. Between hardware and applications. Seed of an OS, managing the resources. Quite clear (probably AI generated) explanation, in Geek for Geeks. Nanokernel, exokernel....vary in abstraction, protection.

KVM means Kernel-based VM, as it is based on the Linux one.

Distributions is also an associated concept. A distro = Linux Kernel + a software package https://linuxvox.com/blog/what-is-distro-in-linux

https://kspp.github.io/ here some settings to reinforce Linux Kernel.

Chroot

How is Chroot different from a VM? Chroot intro

What I learned

How to escape Chroot or a VM?