The Wireless that Wi-Fi Promised by Jacob Loeb
I was thrilled when Apple announced its Airport Wi-Fi hardware. Like many others, I envisioned walking down the street with my iBook constantly connected to the Internet. We all soon found out how difficult that was, at least without buying a cup of coffee. ... They were talking about getting high-speed Internet connections to people’s homes and how DSL and cable were going to solve that problem. ... If you just need to use this service at home, you can buy an EVDO router that will pickup the Verizon network and convert it to Wi-Fi, but that’s not a mobile option.

What You Need to Know About Networking by Alex Lakatos
Because networking is a relatively young science, it borrows language from other disciplines. Many networking terms come from the realm of physical transportation—terms such as bridge, hub, port, routing, and switching. That borrowing is apt. Just as the transportation revolution, and especially... A printer attached directly to a computer via a parallel or USB cable does not comprise a network; it becomes a network if the printer and computer are both attached to a switch or router. ... • Improvements in routing and switching gear: For example, switches with in-line power, which allow...

Your VPN Doctor for Virtual Private Network Troubleshooting VPN Guide by Aaron Adams
Here are some troubleshooting guides for particular topics. (1) Your Virtual Network Connection (2) VPN Troubleshooting Error Messages (3) VPN Modems Troubleshooting Guide (4) VPN ISP Troubleshooting Guide. (1) Your Virtual Private Network Connection Having trouble connecting to the... If using wireless, temporarily remove Wireless from the picture and focus on the Ethernet card. ... Check the Ethernet card speed and duplex parameters and then make sure that the hub, switch, or router that is on the other end has the same parameters.

Security Risks and Ways to Decrease Vulnerabilities in a 802.11b Wireless Environment by Richard Johnson
Introduction This document explains topics relating to wireless networks. The main topics discussed include, what type of vulnerabilities exist today in 802.11 networks and ways that you can help prevent these vulnerabilities from happening. Wireless networks have not been around for many years. ... Proactive Approaches Since wireless technology is insecure, companies or anyone can take a proactive approach to try and identify hackers trying to gain access via wireless networks. ... Accidental Associations – This can happen if a wireless network is setup using the same SSID as your...

Computer Safety for Kids by Rob Pirozzi
Start With the Basics - Protect Your PC Guarding Access to Your PC - Get a Firewall Beginning in the Zhou Dynasty, which was in the 11th century BC, construction was begun on what was to become the Great Wall of China. For 2,700 years, culminating in the mid-1600s, construction continued on... Literally, a cable from your cable or DSL modem gets connected to the hardware firewall. ... Many cable, DSL, and wireless routers/switches have firewalls built into them. ... When you connect your PC to the Internet either through cable, dial-up, or DSL, it is like China prior to the Great Wall.