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Networking

What is a MAC Address?

Whether you work in a wired network office or a wireless one, one thing is common for both environments: It takes both network software and hardware (cables, routers, etc.) to transfer data from your computer to another—or from a computer thousands of miles away to yours. And in the end, to get the data you…

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What is localhost?

There is so much specialized terminology related to computers that it’s impossible for the average person to know what they mean and refer to. Fortunately, it’s also unnecessary to know all this terminology before you jump on the Internet and do whatever it is you want to do. That brings us to the computer term…

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You’ve Never Seen a Hotspot Like This—Citywide Wi-Fi Hits the Streets of NYC

You know how frustrating it can be looking for wireless networks when you’re on the go. If you’re trying to get online using a laptop, you can’t get anything done until you’re connected. And if you’re using a smartphone or tablet, you’ll be burning up your data plan until you can connect to a free…

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What is a Link-Local IP Address?

Link-local IP address ranges Link-local addresses may be assigned manually or automatic operating system procedures. They are assigned most often via autoconfiguration. They are normally only used to assign IP addresses when no mechanism of address configuration exists, such as DHCP, or when another configuration method has failed. The ranges and the amount of usable…

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What is a Computer Hostname?

A name is a label that is used to distinguish one thing from another. A person’s name, for instance, comprises a set of alphabetic characters that allows a person to be individually addressed. Computers are also named to differentiate one machine from another and to allow for such activities as network communication. Computers have always…

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Get More from Your Home Wireless Network

Get More from Your Home Wireless Network

Not too many years ago, a home could function normally with just one computer with a direct connection to a modem and the Internet. Not anymore. Today a family of five can easily have a desktop computer, a few laptops, a couple of tablets and several smartphones. And everyone wants to be online to check…

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How Internet Firewalls Actually Work

How Firewalls Work

For as long as there are computers connected to the Internet, there will be hackers trying to make life miserable for everyone. That’s why firewalls were created for computer users: to block a hacker’s attempts to break into our computers and computer networks, either at work or at home. A firewall is a protective system…

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What is a Firewall?

A firewall is a security device that can be a software program or a dedicated network appliance. The main purpose of a firewall is to separate a secure area from a less secure area and to control communications between the two. Firewalls can perform a variety of other functions, but are chiefly responsible for controlling…

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