Managing users and permissions is something that will be required of you very frequently in sectors related to Linux administration, such as system administration and network security. This is something that will become embedded in your mental toolkit as new users join your organization while others depart. However, even if you are the only person who uses your servers, you will still need to manage permissions. This is due to the fact that processes are unable to run properly if they are denied access to the resources that they require in order to do their tasks.
In this chapter, we dove deep into the process of managing users, groups, and permissions and covered a lot of ground. We proceeded through the process of creating new users, removing existing users, assigning rights, and managing administrative access with the
sudo command. Put these ideas into practice on your own server.
In the next chapter, we will talk about software installation and package repositories...