StudentShare solutions
Triangle menu

Power point presentation about Firewall Technologies - Essay Example

Nobody downloaded yet

Extract of sample
Power point presentation about Firewall Technologies

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. Traditionally, a firewall is a term used to denote a "wall to confine a fire or potential fire within a building (Firewall 2008)." The use of firewall in internet has been triggered by the attack of Morris Worm making internet connection vulnerable to its adverse effects. Because of what happened, the whole community becomes aware of the realities of such attack which can threaten the computers accessing the internet (Firewall 2008). Thus, the online community sought for a protection in order to ward off the threat of viruses, worms, and other which can be very harmful and disruptive to the internet users. This is when firewall technology came into being (Firewall 2008).
The beginnings of first generation firewall technology can be traced to the paper released by engineers of Digital Equipment Corporation in 1988 (Firewall 2008). This is referred to as packet filter firewalls which lays down the foundation of a technology that will further be improved and developed. Thus, after the work of these engineers, companies like AT&T Bell Labs and scientists Bill Cheswick and Steve Bellovin continued the long process of research and released a more efficient and complicated versions (Firewall 2008).
Packet filtering is a firewall technology which acts by "inspecting the packets which represent the basic unit of data transfers between computers on the internet" (Firewall 2008). A packet filtering router typically filter packets based on four fields namely, source IP address, destination IP address, TCP/UDP source port, and TCP/UDO destination port (Chadwick 2004). These functions of packet filter are used to block connection from specific hosts or networks, to specific hosts or networks, from specific ports, and to specific ports. Because of their relative simplicity, this type of firewall perform only basic operations including "examining the packet header, verifying the IP address, the port or both, and granting and denying access without any changes" (Abie 2000). Packet filters are regarded for their speed and ...Show more


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…
Author : cmohr
Power point presentation about Firewall Technologies essay example
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Power point presentation about Firewall Technologies"
with a personal 20% discount.
Grab the best paper

Check these samples - they also fit your topic

Working Capital Strategies Paper and Power Point Presentation
(Annual report Home Depot, 2008). According to the management the cause of this steep decline is not company specific, but rather it is being contributed by the downward trend of the entire economic environment, which has hit the retail industry hugely. As a result
10 pages (2500 words) Essay
Power point
What happens when a new contagious disease threatens the world population? Not the health department alone, not the government alone, but each and every segment of the society is affected directly or indirectly. One or two AIDS patients detected at an international
4 pages (1000 words) Essay
Power point presentation
Cognitive developmental theory was first established by Jean Piaget. In developing the theory, Piaget studied certain group of infants whom he observed to have greater desire to know the objects in the environment. Piaget
2 pages (500 words) Essay
NB Power Presentation
Using a mix of fuels to meet its energy production needs is a way to reduce the operational costs of the company. Graham’s government entered into a treaty with Quebec premier in the year
1 pages (250 words) Essay
Written critique power point presentation
The concepts affectivity, brevity and clarity exemplify the power and creativity of the written presentation. These points can be further discussed as follows This power presentation is effective most primarily because it is on a subject
4 pages (1000 words) Essay
Books and the power point
This means that greater percentage of people interviewed did not have a specific genre of book that they would always pursue but the selection is based on immediate circumstances that happen around them. Of the five people interviewed, 80% admitted that
2 pages (500 words) Essay
Power Point Presentation
The value chain of online gaming industry has been revolutionized by escalation in accessibility of internet. In 2012, the progress of gaming industry has been estimated to reach 70.1 billion dollars. The factors which are
2 pages (500 words) Essay
Power Point PHD Defense
far as diversity among companies is concerned, what makes the case of Brazil very peculiar is that apart from the fact that there are several foreign companies that have foreign nationals working with them. Brazil also happens to be a country that serves as a labor destination
9 pages (2250 words) Essay
Policymaker Power point
This is because face to face meetings generate a connection and assist in building a relationship with the policy maker. Having a face to face meeting permits cooperation and the person interacting with the policy maker can learn about the personality of the policymaker and
15 pages (3750 words) Essay
Power Point Presentation
Charlie Fineman, and the second family is that of Dr. Allan Johnson. The plot of the movie analyses the challenges that these families experience, in relation to the wider American society. Charlie lost his wife and children, during the 9/11 terrorist
3 pages (750 words) Essay
Hire a pro to write
a paper under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
Comments (0)
Click to create a comment
Contact Us