Chapter 10

Computer Support
Kemtis Kunanuraksapong
MSIS with Distinction
• Chapter 10: Securing Windows 7
• Exercise / Lab
• Quiz
Configuring Password Policies
• Used to enforce good password security
• Local Security Policy on individual computers
• Group Policy on an AD DS
Password Policy
• Enforce password history
▫ How many old password remember
Maximum / Minimum password age
Minimum password length
Password must meet complexity requirements
Store passwords using reversible encryption
Account Lockout Policies
• Account Lockout duration
▫ How long will it lockout
• Account Lockout threshold
▫ How many attempt before it locked out
• Reset account lockout counter after
▫ The period of time that counter will reset to 0
Using Credential Manager
• Under control panel
▫ Credentials can be added directly
• Windows Vault
▫ Stores usernames and passwords for servers and
Web sites
Smart Cards
• High security alternative to passwords
• Group Policy controls how authentication with
Smart Cards is enforced
▫ Comp Conf.\Policies\Wins Settings\Sec
Settings\Local Policies\Security Options
 Interactive Logon: Require Smart Card
 To allow ONLY smart card user authentications
 Interactive Logon: Smart Card Removal Behavior
 If card is removed while logon
No action
Lock Workstation
Force Logoff
Disconnect if a Remote Desktop Services session
Managing Certificates
• Used for a variety of authentication tasks,
internally, on the local network, and on the
• Users can manage their certificate stores directly
using Certificates snap-in
Certificates Snap-In
• Certmgr.msc
Using Biometrics
• Scans a physical characteristic of a user to
confirm identity
• Windows Biometric Framework provides core
biometric functionality and a Biometric Device
control panel
Elevating Privileges
• Use Run As Administrator context menu option
• Use command line runas.exe command:
runas /user:example\administrator
Troubleshooting Authentication Issues
• Password loss
▫ Users can change their own password if they know
their old password
▫ Administrator can reset password without
supplying old password
• Password reset Disk is better option
Authorizing Users
• Authorization grants the user access to certain
▫ Using permissions
 To allow user to access the folder, read the file, etc.
▫ Configuring user rights
 To allow user to logon, shutdown, etc.
Defending Against Malware
• Malware
▫ Malicious software created specifically for the
purpose of infiltrating or damaging a computer
system without the user’s knowledge or consent
Trojan horses
Introducing Windows 7 Action Center
Understanding Firewalls
• Base their filtering on TCP/IP characteristics:
▫ IP address - Specific computers
▫ Protocol numbers - Transport layer protocol
▫ Port number - Application running on computer
• Rules are used to filter traffic two ways:
▫ Admit all traffic, except that which applies to the
▫ Block all traffic, except that which applies to the
The Windows Firewall Window
Using the Windows Firewall Control
Using the Windows Firewall with
Advanced Security Console
Using the Windows Firewall with
Advanced Security Console
• Default profile settings can be
• Inbound and outbound rules
can be created
Introducing Windows Defender
• To defend against spyware by real-time
monitoring and scanning the places where it
most commonly infiltrates a computer
• When malware detected, it alerts and prompts
Remove the program
Add it to an Always Allow list
• Not a full-featured antivirus program
Malicious Software Removal Tool
• A single user virus scanner supplied with
monthly updates
• Removes any potentially damaging software it
• There are no controls and is not permanently
Using the Encrypting File System (EFS)
• EFS is a feature of NTFS that encodes the files
on a computer
• Uses public and private keys (PKI)
▫ The user who creates the file is the only person
who can read it
• Only available on Professional, Enterprise and
Ultimate editions
• Compressed files cannot be encrypted
Configuring Parental Controls
• Enables parents to limit their children’s access
to specific Internet sites, games, and
• Based on user accounts
• Impose restrictions on accounts
Filter Web sites users are allowed to access
Limit downloads from Internet sites
Enforce time limits for computer use
Restrict access to games by rating, content, or title
Allow or block specific applications
• Matching
• Multiple Choice
• Case Scenario 10-1

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