Configuring your Home Network by liwenting


									Configuring your Home

                Jay Ferron
How many of you have more than one
computer at home?
How do you connect to the Internet (DSL,
cable, dialup)?
How many already have a home router?
Already have a wireless router?
What is a Home network
Connecting things together
Firewalls and Filtering
Setting up a home router
Setting up Print and File Sharing
            Home Network

One or more computers connected:
   To the Internet with a router
   To each other in order to share Resources:
      Internet Connections
      Sharing Files
      Sharing Printers
        What is a Router
Connects one network to another
Sometimes called a “Gateway”
In our case it connects to your cable
modem or DSL Line
Routers keep track of IP addresses and
physical (MAC) addresses of hosts
Managed (As we shall see)
What is a Cable/DSL Modem
Usually provided and controlled by your
Connects your home to the Internet.
This is the device that gets your public IP
Normally has no firewall protection
Make sure you use the right cable
          What is a Firewall
A device the filters packets or traffic
Its job is to be a traffic cop
You configure the firewall:
   What will allow to pass
   What will it block
Hides your home network from the outside
Can be either in hardware or software
                       Firewall Protection

         Internet                      Firewall

1.   Implement a firewall (checks incoming traffic at the network before it gets to your home
     network) Default – Blocks all Incoming connections
2.   Leaving you home network default is allow all outbound connections
3.   Hardware firewalls protect you home network by stop all traffic before it get to your
4.   Personal software firewall on your computer blocks incoming and outgoing (lets you know
     what is leaving your computer)
            Firewall Routers
The idea is layers of protection
 Examples of home combo units include
     Dlink
     Netgear
     Linksys
          Software Firewalls
Add additional protection by:
   Controlling what leaves your computer
   Adding a second level of protection
   By being aware of application level attacks
   By allow you to schedule
      Usage of the internet by time (control access at
      By location (block content for young children)
Software Firewalls for Home Use
McAfee Firewall

Symantec’s Norton Personal Firewall

Zone Alarm (Free)

Computer Associates with Firewall (free)

Windows Firewall in XP Service Pack 2 (free)
                    XP Service Pack 2
1.         Backup you computer
2.         Do you have old hardware ?
3.         Have you backup your computer ?
4.         Do you have enough Space ?
5.         Download Service Pack 2
      1.     When Software agreement appears
6.         Disconnect from your network
      1.     Unplug network card cable
      2.     Turn off Wireless
7.         Turn off Anti Virus software
8.         Install
9.         Turn on Anti Virus
10.        Reconnect to Network
11.        If problems call 1-866- PC- Safety
What is wireless
Wireless Networking Standards
   802.11 a, b, and g
   Recommend a standard “g” model
Wireless Security Standards
   Recommend Wired Equivalent Privacy (WEP)
   Wi-Fi Protected Access (WPA)
Steps to protect your wireless

1. Change the default password on your router

2. Enable WEP on router and wireless workstation

3. Use MAC address filtering

4. SSID broadcast of

5. Prohibit Peer-to-peer (Ad Hoc) networking

5. Keep current on hardware bios upgrades
Demo: How to configure Wireless

   Basic Settings
   Wireless Settings
   Backup Settings
   Set Account name and password
   Blocking and Filtering
     Configuring Windows for
Print and File Sharing:
 Useful, but

 Risky if not all computers are secure
         Weak Passwords
   Your computer password is the
 foundation of your computer security
         No Password = No Security
Old Passwords & Same Password = Little Security
  Change the “administrator” password on your

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