Web hosting Glossary

Definitions of what is a firewall:

• A firewall helps to limit online access to only those with proper authorization. Consider a firewall as a virtual wall that separates a trusted environment (such as corporate or home networks) from untrusted environment (such as the Internet) by controlling and regulating the traffic between these two environments such that the trusted environment is protected from any harmful activity (such as viruses, worms or intrusion attacks) initiated on the untrusted side.
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• A firewall can be defined as "a system or group of systems that enforces an access control policy between two networks." In the context of home networks, a firewall typically takes one of two forms: Software firewall - specialized software running on an individual computer, or a network firewall - a dedicated device designed to protect one or more computers.
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