Here we are with this new article which is going to explain how to secure your system disabling root account on Ubuntu / Debian preventing to everybody to access to your system with such a high grade allowing to perform malicious actions or make serial damages to your environment.
We are going through different steps and maybe many of them can result redundant but you may never know which will be the next flaw being discovered exposing even partially your system.
Who is root? and why is so important?
Root user is the first user you will find by default on your machine, he is the user which has the privileges of doing everything in your system and everyone (even the system owner) who is grant the access whit that role has the complete control on all the system and our first worries is to avoid to everybody, even our self if possible, to log in as root user.
This role is very critical when it comes to security and safety and we should do our best to respect it and protect it.