Extended Definition †Firewall Essay Example for Free

Extended Definition Firewall EssayFirewall (1) A computer program or hardware device used to provide additional security on mesh topologys by blocking access from the public network to certain services in the private network. (2) It is an integrated collection of security measures designed to prevent unofficial electronic access to a networked computer system. It is also a device or set of devices configured to permit, deny, encrypt, decrypt, or proxy all computer trading between different security domains based upon a set of rules and other criteria.Etymology Firewall is consisting of two words fire and wall. Fire finish be traced from the aging English word fyr a Germanic language which means fire, torch. In Old Czech language pyr means hot ashes. Moreover, wall is throw out be traced from the Old English word weall which means rampart (natural as well as man-made) and defensive fortification around a city, side of a building, interior partition, which apparently a bor rowing from Classic Latin vallum which means wall, rampart, row or line of stakes.However, the term firewall, as we used here, is a recently coined term for network security and technology. History and Background The term firewall originally meant a wall to confine a fire or likely fire within a building, c. f. firewall (construction). It was also used later on as a referral to similar structures, like metal sheet that separates the engine compartment of a vehicle or aircraft from the passenger compartment. Firewall technology emerged in the late 1980s when during that time Internet was a fairly new technology in footing of its global use and connectivity.The forerunners to firewalls for network security were the routers used to separate networks from one another in the mid to late 1980s. Firewalls are important for the following reasons it can block unauthorized users to access your network it can protect the network from attacks using the e-mail system it can prevent vandals fro m logging into the machines on your network and it can serve as a tracer for those who attempted to use your networks data.