Configure Superuser Access

Introduction

In this challenge, you will practice configuring superuser access on a Red Hat Enterprise Linux system. As a system administrator, it is a fundamental skill to grant and manage elevated privileges for users, which is crucial for maintaining the security and integrity of the system. You will create a new user and grant them the ability to execute commands as the root user.

Grant Superuser Access

Tasks

Your goal is to create a new user and provide them with superuser (sudo) privileges. You will then verify that the user can successfully execute commands that require these elevated permissions.

Requirements

• Create a new user account with the username admin.
• Set a password for the admin user. You may use labexpass123 as the password for simplicity.
• Grant the admin user superuser access by adding the user to the wheel group. On RHEL systems, members of the wheel group are permitted to use sudo by default.
• Verify that the admin user can list the contents of the /root directory using sudo.

Example

After correctly configuring the admin user, you should be able to switch to this user and execute privileged commands. For instance, running sudo ls /root should successfully list the contents of the root user's home directory, which is normally inaccessible to standard users.

[admin@host ~]$ sudo ls /root
anaconda-ks.cfg  anaconda-post-nochroot.log  anaconda-post.log  buildinfo  original-ks.cfg

Summary

In this challenge, you have learned how to grant superuser access to a user account on a Red Hat Enterprise Linux system. You successfully created a new user, set their password, and added them to the wheel group to grant sudo privileges. You also verified the new permissions by executing a command that requires elevated access. Mastering user privilege management is a critical skill for any system administrator responsible for maintaining a secure and functional Linux environment.