In this video I cover how to manager users and groups, then some talk about how passwords are stored in Linux. We'll talk about a special file that is accessed with the "visudo" program. Also, what is password hashing? https://bit.ly/2Bw5YFi Linux Cheat Sheet: https://bit.ly/3efC4DC Note: I talk pretty slow in these videos to make sure everyone understands the concepts. Feel free to speed up the video to 1.25x or 1.5x if you just want to review Linux Basics. Commands Used:groups, usermod, deluser, adduser, addgroup, delgroup, sudo, visudo