Configuring your Home Network

1. Configuring your Home Network Jay Ferron ADMT, CISM, CISSP, MCDBA, MCSE, MCT, NSA-IAM

2. Questions • 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?

3. Agenda • What is a Home network • Connecting things together • Firewalls and Filtering • Setting up a home router • Setting up Print and File Sharing • Questions

4. 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

5. 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)

6. What is a Cable/DSL Modem • Usually provided and controlled by your ISP • Connects your home to the Internet. • This is the device that gets your public IP address • Normally has no firewall protection • Make sure you use the right cable

7. 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 world • Can be either in hardware or software

8. Internet Firewall Home Network Firewall Protection • Implement a firewall (checks incoming traffic at the network before it gets to your home network) Default – Blocks all Incoming connections • Leaving you home network default is allow all outbound connections • Hardware firewalls protect you home network by stop all traffic before it get to your computers • Personal software firewall on your computer blocks incoming and outgoing (lets you know what is leaving your computer)

9. Firewall Routers The idea is layers of protection • Examples of home combo units include • Dlink • Netgear • Linksys

10. 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 night) • By location (block content for young children)

11. 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)

12. XP Service Pack 2 • Backup you computer • Do you have old hardware ? • Have you backup your computer ? • Do you have enough Space ? • Download Service Pack 2 • When Software agreement appears • Disconnect from your network • Unplug network card cable • Turn off Wireless • Turn off Anti Virus software • Install • Turn on Anti Virus • Reconnect to Network • If problems call 1-866- PC- Safety

13. Wireless • 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)

14. Steps to protect your wireless network • Change the default password on your router • 2. Enable WEP on router and wireless workstation • Use MAC address filtering • SSID broadcast of • Prohibit Peer-to-peer (Ad Hoc) networking • 5. Keep current on hardware bios upgrades

15. Demo: How to configure Wireless Firewall/router • Example: • Basic Settings • Wireless Settings • Backup Settings • Set Account name and password • Blocking and Filtering

16. Configuring Windows for Networking • Print and File Sharing: • Useful, but • Risky if not all computers are secure

17. 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 computer

18. Questions