By: Marc Angelo SebastianBTTE-3 COET

Configuring Security and Defending your

Computer

• We will answer the following:

What is the Four Layers of Defense? Why do we need to know these Four Layers

of Defense? What is Group Policy? Why do we need to understand the concept

of Group Policy?

In this session…

Four Layers of Defense

YOU!Antivirus / AntiMal-ware & Firewall

OS SettingsLayer

4

Layer 3

Layer 2

Layer 1

Four Layers of Defense

Secure Pass-words

YOU!Layer 1

Four Layers of Defense

Users are the weakest link of the system. Learn more about your computer. Be proactive Develop “defensive computing” habits

YOU!

Four Layers of Defense

Layer 1

Antivirus / AntiMal-ware & Firewall

Layer 2

YOU!Layer 1

Install and use reputable Antivirus / Antimalware programs.

Update frequently and regularly. Use Firewall to protect your system from exter-

nal threats.

Antivirus / AntiMalware & Firewalls

Layer 2

Four Layers of Defense

Four Layers of Defense

OS SettingsLayer

3

Antivirus / AntiMal-ware & Firewall

Layer 2

YOU!Layer 1

Four Layers of Defense

Learn to use your operating system’s security fea-tures.• For example, Windows 7 has its UAC (User Ac-

count Control). Disable unnecessary features and services.• For example, disable Windows “Autoplay” fea-

ture. Install the latest recommended patches and up-

dates. Regular users should use Standard

account, not Administrator account.

OS Settings

Four Layers of Defense

Layer 3

YOU!Antivirus / AntiMal-ware & Firewall

OS SettingsLayer

4

Layer 3

Layer 2

Layer 1

Secure Pass-words

Four Layers of Defense

This is your last line of defense. All user accounts, especially Administrator, must

be password protected. Passwords should be at least 8 characters long.• Mix letters, numbers, special characters.

Passwords should be easy to remember but difficult to guess.

Secure Passwords

Four Layers of Defense

Layer 4

Group Policy Management

A feature of the Microsoft Windows NT family of operating systems.

Controls the working environment of user and computer accounts.

Provides the centralized management and con-figuration in an Active Directory environment.

Group Policy

Group Policy Management

A directory service that Microsoft developed for Windows domain networks.

Included in most Windows Server operating sys-tems.

Set authentication and authorization to users and computers.

Set a policy in a specific directory.

Active Directory (AD)

Group Policy Management

How the Group Policy works

The Administrator in the Windows Server create a New Policy to the Group Policy.

Four Layers of Defense

How the Group Policy works

The Domain Server distributed the New Policy to the users and computers.

“One action” of the Domain Server can apply to ALL users and computers.

Group Policy Management

What you can do in Group Policy

1. Schedule the log on hours of the users.2. Auto-shutdown the computers.3. Secure what users can ONLY do in the computer.4. Disable shutdown button in computers.5. Disable USB ports and Internet in a specific user

and computer.6. Set the disk space in computer what only the

user can use.

Group Policy Management

Thank you!

“An ounce of prevention is better than a pound of cure”

-Benjamin Franklin