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+# Essential Linux
+
+## Introduction to Linux
+
+### Where does Linux originate from?
+
+* The spiritual mother of Linux is [Unix](https://en.wikipedia.org/wiki/Unix).
+* [POSIX](https://en.wikipedia.org/wiki/POSIX) is not an OS in itself but a **standard**.
+	* Which OS's are [POSIX compliant](https://en.wikipedia.org/wiki/POSIX#POSIX-oriented_operating_systems)
+
+### Who is behind this project?
+
+* Who is [Richard Stallmann](https://en.wikipedia.org/wiki/Richard_Stallman)?
+* Who is [Linux Torvalds](https://en.wikipedia.org/wiki/Linus_Torvalds)?
+
+### What is the deal with 'GNU-slash-Linux'?
+
+* [GNU/Linux](https://en.wikipedia.org/wiki/GNU/Linux_naming_controversy) controversy
+	* What is a [kernel](https://en.wikipedia.org/wiki/Kernel_(operating_system))
+	* What does [GNU](https://www.gnu.org/software/) bring to the table?
+
+### Where can you *get* some Linux?
+
+* You probably already have a Linux computer running at [home](https://opensource.com/article/19/8/everyday-tech-runs-linux)!
+
+![Timeline](../assets/distro_timeline.png)
+
+### Debian
+
+* [Reasons](https://www.debian.org/intro/why_debian) to choose Debian.
+* Why is Debian called [the universal operating system](https://www.reddit.com/r/debian/comments/22j0wf/so_why_debian_is_called_the_universal_operating/)
+	* [comparison](https://en.wikipedia.org/wiki/Comparison_of_instruction_set_architectures) of CPU architectures
+	* [download](https://www.debian.org/distrib/netinst) Debian
+
+## How to create a virtual machine
+
+Step by step walk-through of a VM creation in virtualbox with some notes on each step with best practice pointers.
+
+## Breakdown of the Debian installation
+
+* [step by step](https://debian-handbook.info/browse/stable/sect.installation-steps.html) installation instructions
+	* **stress the graphical/minimal difference**
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+# Planning
+
+## Essential
+
+### Day 1
+
+* Introduction to Linux and it's history
+* How to create a virtual machine
+* Breakdown of the Debian installation
+* Install your own graphical Debian installation with gnome as graphical interface
+* Explain the concept of a package manager
+* Install VLC via the graphical software tool
+* Introduction to the command line
+* Install `htop` via `apt`
+* Add a secondary desktop environment (XFCE or LXDE) via `tasksel` and explore it's footprint
+* Disable the window manager via `systemctl`
+* Install a minimal Debian machine and add some software to it (htop, bmon, ...) as an exercise
+
+### Day 2
+
+* Install the guest additions to the main Debian machine
+
+### Day 3
+
+* Install `openssh-server`
+
+### Day 4
+
+* over the wire bandit game
+
+### Day 5
+
+* over the wire bandit game
+* time for Q and A
+
+## CCNA
+
+### Day 1 - 5
+
+* Idem as [essential](#essential)
+
+### Day 6
+### Day 7
+### Day 8
+### Day 9
+### Day 10