By Brian Komar
ISBN-10: 0764540483
ISBN-13: 9780764540486
What an grand global we are living in! nearly something you could think will be researched, in comparison, well-known, studied, and in lots of situations, obtained, with the clicking of a mouse. the web has replaced our lives, placing a global of chance prior to us. regrettably, it has additionally placed an international of chance into the arms of these whose factors are under honorable. A firewall, a section of software program or that erects a barrier among your laptop and those that may well wish to invade it, is one answer. If you've been utilizing the net for any size of time, you've most likely bought a few unsavory and unsolicited electronic mail. in case you run a enterprise, you will be apprehensive concerning the safeguard of your info and your customers' privateness. At domestic, you need to safeguard your individual info from id thieves and different shady characters. Firewalls For Dummies(r) provide you with the lowdown on firewalls, then advisor you thru deciding upon, fitting, and configuring one in your own or bus iness community. Firewalls For Dummies(r) is helping you realize what firewalls are, how they function on sorts of networks, what they could and can't do, and the way to choose a very good one (it's more straightforward than deciding upon that ideal melon within the supermarket.) You'll learn about* constructing protection rules* constructing ideas for easy protocols* Detecting and responding to method intrusions* establishing firewalls for SOHO or own use* growing demilitarized zones* utilizing home windows or Linux as a firewall* Configuring ZoneAlarm, BlackICE, and Norton own firewalls* fitting and utilizing ISA server and FireWall-1 With the convenient information and tricks this publication presents, you'll locate that firewalls are not anything to worry - that's, except you're a cyber-crook! You'll quickly have the capacity to maintain your facts more secure, guard your family's privateness, and doubtless sleep larger, too.
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Extra info for Firewalls For Dummies
Sample text
Military infrastructure will survive a large-scale nuclear war. However, because of the roots of TCP/IP, the Internet today uses a set of protocols that can function well in an environment in which there is no centralized control and there is constant risk of partial network outages. For example, suppose that construction workers dig a trench and accidentally destroy a buried network cable that connects two parts of the country. As a result, some computers may not be able to communicate with each other.
Computers with always-on connections are a favorite target of hackers. Some computers — especially Windows-based computers with shared resources, such as shared folders or printers — announce themselves on the local network so that other users can easily find these shared resources and connect to them. This is great in a home network, but with a cable modem, these computers announce their shared resources to everyone on the same cable segment. This means that your neighbor’s printer may show up as a resource as you look for the shared printer on your spouse’s computer.
For example, if you were a hacker and intended to crash someone’s computer, you wouldn’t want your victim to trace the attack back to your computer’s IP address.
Firewalls For Dummies by Brian Komar
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