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Firewall-Any of a number of security schemes that prevent unauthorized users from gaining access to a computer network or that monitor transfers of information to and from the network. This is dictionary.com definition basically it means something that prevents people from gaining access to your machine. Firewalls also stop trojans from taking over your computer by keeping ports closed. Firewalls are essential. If you do not have one go out and buy one now. Do not buy Norton Personal Firewall is is the biggest piece of junk in the world. Using it to stop a hacker is like using a like trying to stop a tank with a ball of paper. BlackIce Defender is very good you can get is at iss.com its cheap. Firewalls are not everything you need but they are a great start to good security. |
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