The section User Management belongs to Linux Fundamentals module.
Download the VPN file from HTB Academy and run the following command in the same directory:
sudo openvpn academy-regular.ovpn # Make sure you have openvpn installed.
The -m flag is used with the useradd command to create a home directory for the new user.
To lock a user account we use the --lock flag with the usermod command.
To execute commands as a different user, use the --command flag with the su command.