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Title: What is a firewall and how does it work? Post by: ramki on November 30, 2008, 02:08:14 pm Hi,
Can anyone explain what a firewall is and how it works, please? Thanks. ramki Title: How firewall works Post by: zaragoza on December 08, 2008, 11:25:31 am A firewall is a software or a hardware system designed to prevent unauthorized access to your network. Firewalls can have the form of hardware or software or a combination of both. Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet. A firewall works in a way that all messages entering or leaving the intranet pass through the firewall. The firewall examines each message and blocks those messages that do not meet the specified security criteria.
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