CTER
NetHandbooks Glossary
Definitions for teachers by teachers

Firewall

Firewall: A combination of specialized hardware & software designed to keep unauthorized users from accessing information within a networked computer system.

by Terry Franklin


Firewall
A firewall is a hardware and/or software boundary that prevents unauthorized users from accessing restricted files on a network. The part of the network that is not behind the firewall is available to whoever logs on. There are three standard firewall architectures: the dual-host gateway, the screened-host firewall system, and the demilitarized zone firewall

Relevance: The school district has established firewalls in its Intranet to prevent unauthorized access in certain areas which are not for public use. Some of these areas are recorded grades, cumulative records concerning students, teacher personnel records, etc. The firewalls detract from observing some training aids because they will not allow "cookies" to pass that permits access to that website.
We are establishing a home network with firewalls to prevent malicious operators from acquiring unauthorized personal information such as credit card numbers, utility account numbers, bank account numbers, personal health records, etc.
Sources: http://www.netlingo.com

by Dianne Fulton


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Last updated: 1 August 2000