what is fire wall?

Answer 1

Well, according to Wikipedia, "firewall is a piece of hardware and/or software which functions in a networked environment to prevent some communications forbidden by the security policy"

Answer 2

Firewall (construction)
In construction, a firewall is a passive fire protection item that is required to have a special and unique Fire-resistance_rating and is subject to stringent bounding. It is a fire-resistance rated wall assembly that has been constructed in such a manner as to subdivide a building into legal and practical segments in accordance with the locally applicable building code.

Firewall (networking)
In computer science, a firewall is a piece of hardware and/or software which functions in a networked environment to prevent some communications forbidden by the security policy, analogous to the function of firewalls in building construction. A firewall is also called a Border Protection Device (BPD), especially in NATO contexts, or packet filter in BSD contexts. A firewall has the basic task of controlling traffic between different zones of trust. Typical zones of trust include the Internet (a zone with no trust) and an internal network (a zone with high trust). The ultimate goal is to provide controlled connectivity between zones of differing trust levels through the enforcement of a security policy and connectivity model based on the least privilege principle.

Proper configuration of firewalls demands skill from the administrator. It requires considerable understanding of network protocols and of computer security. Small mistakes can render a firewall worthless as a security tool.

Answer 3

fīr´wâl) (n.) A system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both. Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria.

Answer 4

Fire wall is a kind of protection between public network and your own. It is like a gate keeper who asks before entering any anonymous person or data whether it is authorised or not and whether it is harmfull for personal network or not.

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Answer 5

A type of wall which protect ur pc from the fire of unknowns....

Answer 6

It's an electronic gateway that prevents people getting into your network, or a least tries to. It's also a movie with Harrison Ford.

Answer 7

A protection that help you protect your PC from intrusions and viruses and spywares.

Good luck.

Answer 8

Protection for your PC!!

Answer 9

it's software that protects your computer from intruders, like viruses or identify theft.

Answer 10

it is a software program that restricts or limits your user access.