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power point presentation about Firewall Technologies - Essay Example
The wide popularity and usage of the internet technology in a global scale necessitates the creation of a system which ensures security within a network. It should be noted that the internal networks within a business organization is often considered secure because of the high level of trust between the computers in the network especially if this is private…
These threats lead to the creation of the firewall technology in order to protect a computer or network of computer which is connecting to the internet.
A firewall is defined as a "computer, router, or other communication device that filters access to the protected network" (Abie 2000). Thus, it gives the implication about the main tasks of a firewall. Accordingly, a firewall inspects traffic network passing through it and is responsible for permitting or denying access. In addition, Cheswick and Bellovin specifies certain processes which characterizes a firewall which include: "all traffic from inside to outside, and vice-versa, must past through it; only authorized traffic, as defined by the local security policy, is allowed to pass through it; and the firewall itself is immune to penetration" (Abie 2000). In summary, a firewall serves as a filter allowing the access of a trusted network and rejecting "untrusted" ones.
The emergence of firewall technology occurs during 1980s far before the internet has gained popularity in global users. ...