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A firewall can be described as a system designed
to prevent unauthorized access to or from a private network. Firewalls
can be either hardware based, a software application or a combination
of both. Firewalls are frequently used to block unauthorized Internet
users from accessing private networks connected to the Internet.
Software based firewalls are the cheapest and easiest to set up but can
interfere with your Internet connection if not properly configured.
Hardware firewalls are more expensive and difficult to configure but
offer more stability to a network. If you feel that you need the
security a firewall offers, the following websites can help you decide
which method is best for you.
Always run a firewall with both incoming and outgoing protection, so that a spammer can't plant a program on your computer to spread a virus or use your connection to send spam.
Software Firewalls:
Hardware Firewall/Routers:
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