A firewall is a
network security system, based hardware or software that controls incoming and
outgoing network traffic based on a set of rules.
Acts as a barrier
between a trusted network and other untrusted networks.
This means that the
only traffic allowed onto the network defined in the firewall policy is; all
other traffic is denied.
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Hardware |
Software
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It is as
specialized network boxes that contain customized hardware and software.
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It is installed
on an individual’s PC, notebook or work-group server.
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It provides a
protective barrier that hides an organization’s internal PCs from the outside
world.
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It is more ideal
for individual users or small businesses.
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It’s a single
security umbrella that protects multiple systems.
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It is convenient
for mobile workers who need digital security when working outside.
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It tends to be
expensive, complicated, difficult to upgrade.
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It is easy to
upgrade and download.
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