Your first week on this unit is focused on the basics of POSIX system administration. In particular, you'll be getting set up with tools that you'll be using throughout this unit: the SSH setup that will allow you to access lab machines remotely, and the Vagrant container system that sets up the virtual Debian environment that this unit's exercises are developed against. We'll also be showing you how to install software on your Debian VM, and helping you choose a text editor.
There are some common pitfalls at this stage in the unit, and in partcular students often get confused by standard SSH output. Please watch this supplementary video (slides) before the lab. As with all weeks, it is also a good idea to look at the exercises below before the start of the lab itself.