By definition a firewall is any 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.
Nowadays with such focus being placed upon online security for both home and office users, the hardware and software firewall has become standard equipment in the fight against unauthorized access. Much like a physical firewall found in buildings and cars, a firewall acts as a barrier between the internet and you. Many software firewalls such as Zone Alarm or Norton Personal Firewall allow the user to tell the Firewall sof
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