1. Chapter 6 – Users, Groups, and Permissions
CMIT100
Chapter 6 – Users, Groups, and Permissions

2. Learning Objectives
Describe the role of the user account and the group.
Introduce the mechanisms to create and maintain user and group accounts in Windows and Linux.
Explain how to change file and directory permissions in both Windows and Linux.
Discuss password management including the concept of the strong password.

3. Single-User vs. Multi-User Operating Systems
Single-User (legacy):
DOS
Windows 9x
Multi-User:
Unix
Linux
Windows NT & Descendents

4. What is a User? An agent who uses the computer
Commonly human but can also be software
Provides protection for data and resourcesa
Authentication
Username
Password
Token
Biometrics

5. Types of Users Regular Users Administrative Users
Windows: administrator
Linux: root
Can also be a regular user delegated authority

6. Setting up User Accounts
Linux
GUI

7. Setting up User Accounts
Linux
CLI
LAB – Create Linux User Accounts

8. Setting up User Accounts
Windows

9. LAB
Create Windows User Accounts

10. Groups Containers to hold user accounts
Can also contain other groups (nested)
Both Windows and Unix/Linux make use of groups

11. Permissions Provides protection of files and system resources
May be assigned to both users and groups
When assigned to groups, permissions will apply to all members of that group
Linux Permissions:
Read
Write
Execute
Windows Permissions:
Full Control
Modify
Read & Execute
Special Permissions

12. LAB
Set Windows file permissions

13. Security Threats
Password Cracking
Social Engineering
Dumpster Diving

14. Strong Passwords Examples of Weak Passwords:
Letmein
Names, Dictionary words
Examples of Strong Passwords:
Passphrases

15. Creative Commons Statement