Here are the 50 practical scenarios on how to manage users and groups that can help you prepare for the RHSA (Red Hat Certified System Administrator) exam:
User Management:
1. Create a new user named “john.”
2. Set a password for the user “john.”
3. Configure password expiration for “john” to require a change on the next login.
4. Create a user named “jane” with a specific UID.
5. Create a user account without a home directory.
6. Lock and unlock a user account.
7. Set the user “john” to have no password.
8. Delete a user account and their home directory.
9. View detailed information about a user using “id.”
10. Change the default shell for a user.
11. Change the home directory for a user.
12. Modify a user’s login shell using “chsh.”
13. Display the list of all users on the system.
Group Management:
14. Create a new group named “developers.”
15. Add a user to the “developers” group.
16. Remove a user from a specific group.
17. Rename a group from “sales” to “marketing.”
18. List all groups on the system.
19. Display group membership for a specific user.
20. Create a group without specifying a GID.
21. Remove an empty group.
22. Change the primary group of a user.
23. Add a user to multiple groups.
Password Policies:
24. Set password policies to require complex passwords.
25. Configure password aging for user accounts.
26. Set password expiration for a specific user.
27. Prevent a user from changing their password.
28. Display the password policy settings.
29. Remove password aging for a user.
Authentication:
30. Enable password-based authentication in SSH.
31. Configure SSH to allow key-based authentication for a specific user.
32. Disable root login via SSH.
33. Configure “sshd_config” to use a custom port for SSH.
34. Set up LDAP authentication for system users.
35. Implement two-factor authentication for SSH login.
User and Group File Permissions:
36. Create a new file and assign specific ownership.
37. Modify file permissions to allow group members to write to a file.
38. Restrict access to a directory for a specific group.
39. Grant read and write permissions to a user on a file.
40. Display and interpret the output of “ls -l” for a file.
41. Change the ownership of a file without modifying permissions.
42. Use the “chown” command recursively on a directory.
43. Set the setgid bit on a directory.
44. Implement Access Control Lists (ACLs) on a file.
User and Group Management Tools:
45. Use the “useradd” command to create a user.
46. Manage user accounts using the “passwd” command.
47. Modify user properties with the “usermod” command.
48. Delete a user account using the “userdel” command.
49. Create a group with the “groupadd” command.
50. Manage groups with the “groupmod” and “groupdel” commands.
Note : These scenarios cover a wide range of tasks related to managing users and groups in a Linux environment. Practice these tasks on a Red Hat-based system to prepare for the RHSA exam and real-world user and group management challenges.
