Be Your Own IT Department by Scott Hendison
If you use a computer, you need to know more than just how to use your email and surf the web. You need to know that you are protected. If there isn’t someone responsible for the computers in your home or office, then pick someone, quick. Their job is to assure you that everything I’ve listed... You need a firewall, and if you have a wireless connection, you need secure password protection on the router to keep your neighbors out. ... Now that you probably have high speed internet, this step is critical for the security and functionality of your computers.

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. ... Any time you make a VPN connection, you cannot change the routing table, because the VPN Client views this as a security risk and you will get disconnected.

Tips for Designing ZigBee Applications by John Sawyer
So you think you want to develop a ZigBee application, but you have some questions. What’s important in a ZigBee development? What tools do I need? What steps are involved? How much time will it take? What kind of investment is required? What are the unforeseen questions? ... For a custom application that requires data security, you have options regarding where the security is applied – in the application code or in the lower layers of the ZigBee stack. ... ZigBee data security is based on the 128-bit AES algorithm.

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... To their credit, Microsoft publishes a steady stream of fixes, patches, and update releases to plug all known security holes, flaws, and problems. ... Many cable, DSL, and wireless routers/switches have firewalls built into them.