Maxi-Pedia Forum

Information Technologies and Systems (IT/IS) => Security => Topic started by: ramki on November 30, 2008, 02:08:14 pm

Title: What is a firewall and how does it work?
Post by: ramki on November 30, 2008, 02:08:14 pm

Can anyone explain what a firewall is and how it works, please?



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.