Network security Essay Example | Topics and Well Written Essays - 500 words

Network security - Essay Example Technical security controls are made of three components: detective, corrective and preventive, which all work to mitigate risks within a system. The first step I will access the router through the web interface. This will allow me to configure encryption using the WPA2 or the pre-shared key. This will ensure that anyone who all devices must provide this key before joining the network. There are three IKE policy choices message encryption, message integrity hash algorithm and peer authentication method. The policies are satisfied by various encryption methods that are dependent on a number of factors such as type of hardware in place. The key length available when using encryption algorithm allows the definition of key length used in terms of bits. When it comes to choosing message encryption algorithm, 3des is the strongest when compared to DES. The sha encryption offers a better encryption type as compared to md5 when it comes to message integrity has algorithm. For the peer authentication method, the rsa-sig offers a stronger encryption. An intrusion detection system has powerful features that provide notification when an attack occurs. On the other hand, a detective prevention system only uses limited functions to thwart attacks from taking place. Detection system is also limited because it relies on copies of network packets, which must be received from another switch. This makes sensors operating in intrusion mode to be said as running in promiscuous mode. Compared to detection system, intrusion prevention is more robust and has better features because it operate in inline mode where it checks as packets flows in teatime. Therefore, it can prevent traffic from entering a given network in

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Photographers probably take more pictures of people than any other subject. Whether you prefer carefully posed (and composed) photos or more of a candid style, there are a variety of lenses in the Canon EF system that can produce excellent results. Traditionally, photographers have relied upon moderate telephotos for portraits, lenses such as the 85mm f/1.8 USM or 100mm f/2.0 USM. These lenses allow you to back off a little bit from your subject, and still produce frame-filling shots while minimizing the amount of background distractions. Furthermore, they're extremely sharp and fast — ideal for low-light conditions. Zoom lenses such as the 28-105mm f/3.5-4.5 USM, which include these focal lengths, work well in situations where you have a bit more available light. In situations where you want to interact with and control your subject, and minimize the effect of your background, short-to-moderate telephoto lenses may be the ideal choice. Longer telephoto lenses may be preferable if you are outdoors and can stand farther back from your subject, and are the lenses of choice if you prefer a candid approach. Zooms like the 75-300mm f/4-5.6 (especially the IS version, with its Image Stabilization that permits sharp hand-held shots in lower light levels), or the professional L-series 70-200mm zooms, are versatile choices that allow you to back off and also tend to throw backgrounds out of focus — a useful technique that pros have used to concentrate upon the subject. Fixed focal length telephotos, like the superb 135mm f/2.0L, 200mm f/2.8L, or 300mm f/4L IS, combine these benefits with outstanding sharpness and autofocus speed. Don't forget that sometimes including more background in a photo to lend a sense of "place" and tell the viewer something about the subject can be extremely effective. Wide-angle lenses, often ignored for portraits, can be an excellent way to communicate this if you're willing to move in relatively close to your subject.

How Technology Affects Modern America

The microeconomic picture of the U. S. has changed immensely since 1973, and the trends are proving to be consistently downward for the nation's high school graduates and high school drop-outs. â€Å"Of all the reasons given for the wage squeeze – international competition, technology, deregulation, the decline of unions and defense cuts – technology is probably the most critical. It has favored the educated and the skilled,† says M. B. Zuckerman, editor-in-chief of U. S. News & World Report (7/31/95). Since 1973, wages adjusted for inflation have declined by about a quarter for high school dropouts, by a sixth for high school graduates, and by about 7% for those with some college education. Only the wages of college graduates are up. Of the fastest growing technical jobs, software engineering tops the list. Carnegie Mellon University reports, â€Å"recruitment of it's software engineering students is up this year by over 20%. † All engineering jobs are paying well, proving that highly skilled labor is what employers want! There is clear evidence that the supply of workers in the [unskilled labor] categories already exceeds the demand for their services,† says L. Mishel, Research Director of Welfare Reform Network. In view of these facts, I wonder if these trends are good or bad for society. â€Å"The danger of the information age is that while in the short run it may be cheaper to replace workers with technology, in the long run it is potentially self-destructive because there will not be enough purchasing power to grow the economy,† M. B. Zuckerman. My feeling is that the trend from unskilled labor to highly technical, skilled labor is a good one! But, political action must be taken to ensure that this societal evolution is beneficial to all of us. â€Å"Back in 1970, a high school diploma could still be a ticket to the middle income bracket, a nice car in the driveway and a house in the suburbs. Today all it gets is a clunker parked on the street, and a dingy apartment in a low rent building,† says Time Magazine (Jan 30, 1995 issue). However, in 1970, our government provided our children with a free education, allowing the vast majority of our population to earn a high school diploma. This means that anyone, regardless of family income, could be educated to a level that would allow them a comfortable place in the middle class. Even restrictions upon child labor hours kept children in school, since they are not allowed to work full time while under the age of 18. This government policy was conducive to our economic markets, and allowed our country to prosper from 1950 through 1970. Now, our own prosperity has moved us into a highly technical world, that requires highly skilled labor. The natural answer to this problem, is that the U. S. Government's education policy must keep pace with the demands of the highly technical job market. If a middle class income of 1970 required a high school diploma, and the middle class income of 1990 requires a college diploma, then it should be as easy for the children of the 90's to get a college diploma, as it was for the children of the 70's to get a high school diploma. This brings me to the issue of our country's political process, in a technologically advanced world. Voting & Poisoned Political Process in The U. S. The advance of mass communication is natural in a technologically advanced society. In our country's short history, we have seen the development of the printing press, the radio, the television, and now the Internet; all of these, able to reach millions of people. Equally natural, is the poisoning and corruption of these medias, to benefit a few. From the 1950's until today, television has been the preferred media. Because it captures the minds of most Americans, it is the preferred method of persuasion by political figures, multinational corporate advertising, and the upper 2% of the elite, who have an interest in controlling public opinion. Newspapers and radio experienced this same history, but are now somewhat obsolete in the science of changing public opinion. Though I do not suspect television to become completely obsolete within the next 20 years, I do see the Internet being used by the same political figures, multinational corporations, and upper 2% elite, for the same purposes. At this time, in the Internet's young history, it is largely unregulated, and can be accessed and changed by any person with a computer and a modem; no license required, and no need for millions of dollars of equipment. But, in reviewing our history, we find that newspaper, radio and television were once unregulated too. It is easy to see why government has such an interest in regulating the Internet these days. Though public opinion supports regulating sexual material on the Internet, it is just the first step in total regulation, as experienced by every other popular mass media in our history. This is why it is imperative to educate people about the Internet, and make it be known that any regulation of it is destructive to us, not constructive! I have been a daily user of the Internet for 5 years (and a daily user of BBS communications for 4 years), which makes me a senior among us. I have seen the moves to regulate this type of communication, and have always openly opposed it. My feelings about technology, the Internet, and political process are simple. In light of the history of mass communication, there is nothing we can do to protect any media from the â€Å"sound byte† or any other form of commercial poisoning. But, our country's public opinion doesn't have to fall into a nose-dive of lies and corruption, because of it! The first experience I had in a course on Critical Thinking came when I entered college. As many good things as I have learned in college, I found this course to be most valuable to my basic education. I was angry that I hadn't had access to the power of critical thought over my twelve years of basic education. Simple forms of critical thinking can be taught as early as kindergarten. It isn't hard to teach a young person to understand the patterns of persuasion, and be able to defend themselves against them. Television doesn't have to be a weapon against us, used to sway our opinions to conform to people who care about their own prosperity, not ours. With the power of a critical thinking education, we can stop being motivated by the sound byte and, instead we can laugh at it as a cheap attempt to persuade us. In conclusion, I feel that the advance of technology is a good trend for our society; however, it must be in conjunction with advance in education so that society is able to master and understand technology. I think technology has an important effect on us, the way we act, react, and take actions in society. We can be the masters of technology, and not let it be the masters of us.

The Truth Behind The Myth - 1471 Words

Lauren Gualdino Midterm Paper ENGL 225 DLA Professor Tuncel The Truth Behind the Myth Greek literature can be looked at as being indispensable when trying to understand the past. Many scholars have spent great lengths of time studying and interpreting the different works that have come to be most identified as Greek literature. In many of these works they can be looked at as having fairytale-like qualities in the way that magic and folklore is intertwined into historical perspectives. History plays an important role in greek literature, it breathes life into stories that have come to be so widely read and known, that the line between truth and myth has become blurred. Dating back to as early as 900 BCE many of the Greek literature works were not written down, such as the poems of Homer. They were told orally, passed on like a campfire story. Homer authored both The Iliad and The Odyssey. The Iliad is the story of the Trojan war, while The Odyssey is about Odysseus’ ten year adventure home from the war. â€Å"The story of the Trojan War, the Bronze Age con flict between the kingdoms of Troy and Mycenaean Greece, straddles the history and mythology of ancient Greece and inspired the greatest writers of antiquity† (Trojan War, history.com). Homer’s poem paints a very vivid picture when it comes to his recount of the war. He describes in great detail how the war went on for ten years and how the great Odysseus rose to be the greatest warrior of his time. There areShow MoreRelatedWhat Is the Difference Between Myth and Theory?1326 Words   |  6 Pagesthe difference between myths and theories? Well that’s an easy question to answer isn’t it; myths involve fiction while theories involve facts, we should not make any parallels between science and superstition. There, we’ve answered the question, or have we? Although many people will agree that myth and theory are two totally different things, I would debate that the line between the two is much thinner than one would think. In fact in some cases the lin e is inexistent and myths make up theory, justRead MoreFoundations of Mythology870 Words   |  4 Pagesthe word myth used popularly? For example, what does the statement, â€Å"It’s a myth† mean? In contrast, how is the word myth used in the academic context? After considering the definition in your textbooks and course materials, write a definition in your own words. The statement â€Å"It’s a myth† to me means that it is not true or not fully true. There may be some truth but there is some false information added to the story. 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I think everyone can agree there is something fascinating about picking up an old knife or pot of clay and wondering what life was like when it was created. It seems like it is no surprise that so many people could easily believe legends of a lost city or of great giants ruling the earth long ago. Such legends seem to only add to the mystery and wonder of the past. HoweverRead MoreTeamwork Myth808 Words   |  4 Pagesstart to question many of the lessons we were taught as a child and we find them to be nothing but a myth. Our textbook describes at least six-myth involving teamwork and we will identify why it is a myth and the actual reality in teamwork. Our textbook describes the following as myth regarding teamwork and there is some truth to each of the myths but that doesn’t mean it’s completely true. The first myth states that ‘teams are harmonious people’, which mean that people in a group compromises their needsRead MoreDiving Into the Wreck877 Words   |  4 PagesIn â€Å"Diving Into The Wreck†, Rich’s well crafted imagery and use of an extended metaphor helps to develop a powerful theme. In this poem, Rich suggests once people go through a traumatic experience they tend to hide behind a false memory they create in order to protect themselves. In order for people to completely heal themselves, they must be willing to go back into the memories they have suppressed. By taking this journey, they can reclaim what beauty was lost and put to rest the damage thatRead MoreMy Naked Truth : I Am Passionate About Self Care911 Words   |  4 PagesMy Naked Truth: I’m passionate about self-care. I want to break down the negative ideas that exist when it comes to building healthy self-care habits. It makes me sad that even today self-care continues to be misunderstood by so many. How often have you felt guilty when you have prioritised your needs? Women can experience this more than men given the caregiver role attached to them in society. Given the skewed and ‘wishy-washy’ ideas that exist when it comes to self-care it’s no wonder that manyRead MoreEssay about Homosexuality is a Choice Rather than Genetics749 Words   |  3 Pageschoice rather than genetic? To answer this question well start off by revealing some myths of homosexuality. The next part will explain the difference between a behavioral trait and a genetic trait. Finally Ill end be unveiling the truth behind the homosexual gene. There are many things that the homosexual activists say are true, but those truths are merely myths in need of correction. The first of these myths says homosexuals are normal, healthy, everyday people, but on the contrary they areRead MoreEssay on Adrienne Richs Diving Into the Wreck1075 Words   |  5 Pagesrole of the hero and the strategy for success in her second schema. In the second schema the hero goes on a journey where she discovers her true identity, both female and male. The hero prepares for the journey into the sea by reading the book of myths, collecting a camera and knife, and putting on a diving suit. The diver is alone, unlike Jacques Cousteau, who had a team to accompany him on his dives. She brings a camera because she will find things on her dive that she does not want to forget.Read MoreExplaining Diversity Essay1090 Words   |  5 Pagesbiological factors are the main determinants of individual behavior. This theory is greatly reliant on a culture looking for a direct cause and effect relationship between the genetic makeup of humans and social ability. Like this belief, the Origin Myth in Malanowskis Magic, Science, and Religion explains how a certain Indonesian culture, namely the Trobrianders, explains their creation by using stories, experience and presentation. They argue there was an underworld world previous to life on Earth