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firewall |
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| Related Terms | cracker, hacker, server |
| Related Sites | http://www.zonelabs.com/ |
| Description | A hardware or software device that screens all incoming and outgoing network requests. A firewall protects the data stored on an internal network from crackers, and can restrict the operations that internal users can perform (eg the webpages they request can be screened by the server before being viewed). |