Basic Firewall Operation Computer Science Essay

Basic Firewall Operation Computer Science Essay A firewall is a piece of software or hardware that filters all network  traffic between the computer, local network or commercial network and  Internet.  Firewall is a component of a computer system or network  designed to block unauthorized access while  allowed   communication.  It is a device or group of devices  configured  deny, encrypt, decrypt, or proxy all (inside and outside) traffic  team  between different security domains based on a set   Firewalls can be implemented in hardware or  software,  or  a combination of both.  A firewall can be few rules  determine what traffic is  being permitted inside or outside your home network.  Depending on the  type  firewall in place, access to certain  IP addresses or domain  names, or you can block certain types of traffic by blocking  of  TCP / IP  the ports they use.  There are basically four mechanisms used by server’s  security limit  traffic.  A device or progra m can use more than one of these in  relationship  together for more depth protection.  The four mechanisms  of  packet filtering, circuit-level gateway, the  proxy-server and application  Gateway. However, Firewall has some drawbacks.  Initial equipment cost is the main factor that determines the  Better communication technology network security  required.  The firewall cannot protect against attacks that bypass  firewall.  To  For example, dial-in and dial-out access.  The firewall does not protect against internal threats.  The firewall cannot protect against transmission of the virus  infection  programs or files.  It would be impractical and perhaps  impossible to scan  all incoming files, emails and messages for  virus   Time to time, the use of cheaper Internet and  links  much faster.  This leaves many people always want to  use long time. It is  increasing the exposure of computers to various  threats   Internet.  When using an anti-virus software protects  computers  viruses, not other forms of Internet intruders.  A server  Safety  bodyguard keep between your computer and the Internet,  decide what doors to open, and that can come Overview of Firewall -II A firewall examines all traffic sent between two networks to see if it meets certain criteria. If so, is routed between the networks, otherwise it stops. A firewall filters incoming and outgoing traffic. You can also manage public access to private networked resources such as host applications. It can be used to record all attempts to enter the private network and trigger alarms when hostile or unauthorized entry attempt. Firewalls can filter packets based on their source and destination addresses and port numbers. This is known as address filtering. Firewalls can also filter specific types of network traffic. This is also known as protocol filtering because the decision to forward or reject traffic depends on the protocol us ed, such as HTTP, FTP or Telnet. Firewalls can also filter traffic by packet attribute or state. A firewall cannot prevent individual users with modems to dial in or outside the network without going through the firewall at all. Employee misconduct or negligence cannot be controlled by firewalls. Policies regarding use and misuse of passwords and user accounts must be strictly enforced. These are management issues that must be asked in the planning of any security policy, but cannot be solved with firewalls alone. [5]

Joseph Brant Essay Example | Topics and Well Written Essays - 2500 words

Joseph Brant - Essay Example Perhaps no Freemason who ever lived in America has been so condemned by some authors and praised by others as Joseph Brant, the powerful and influential Mohawk chief who sided with the British during the American Revolutionary War.Born at Cuyahoga Ohio Country on the banks of the Cuyahoga River, near present-day Akron, Ohio, during the hunting season when Mohawks travelled to the area, Brant was originally named Thayendanegea, which has possibilities of meaning two wagers (sticks) bound together for strength, or "he who places two bets." The parents of Joseph Brant were Mohawks whose home was at Canajoharie on the Mohawk River in New York. Brant, however, was born on the banks of the Ohio River in 1742 while his parents were on a hunting excursion to that region.(1) His father was Nickus (or "Nicholas") of the Wolfe family, who, although not a chief, was a Mohawk of some standing in the tribe. His mother Margaret, or Owandah, the niece of Tiaogeara, a Caughnawaga sachem, took Joseph and his older sister Mary , alsoknown as Molly, to Canajoharie, on the Mohawk River in east-central New York, where she had lived before her family moved to the Ohio River. His mother remarried on 9 September 1753 in Fort Hunter (Church of England) a widower named Brant Canagaraduncka, who was a sachem of the tribe. Thus he got the name of Brant.Sir William Johnson, the British superintendent of the northern Indians of America, who was extremely popular with the tribes under his supervision, developed a liking for Brant when he was just in his youth. During his time with the Iroquois, Johnson became particularly close to the Mohawk tribes. He was also a Mason and a former Provincial Grand Master of the New York colony. In 1759 Johnson's wife, Catherine died and he then married his Indian mistress who happened to be Brant's sister, Molly in an Indian ceremony later that year. It was due largely to Johnsons relationship with Molly that Brant received the favor and protection of Sir William and through him the British government, which set Brant on the road to promotion. Brant and a number of young Mohawks were selected by Johnson to attend Moors Charity School for Indians at Lebanon, Connecticut- the school which was later to become Dartmouth College. Here he learned to speak and write English and was introduced to Western history and literature studies. He is the only one of those chosen known to have derived any benefit from the educational process standing at that time. He left school to serve under Sir William from 1755-1759 during the French and Indian War (1754-1763). After these participatons, he became Sir William's close companion and helped him run the Indian Department which was administered by the British out of Quebec. He was also assigned the work of an interpreter for an Anglican missionary and helped translate the prayer book and Gospel of Mark into the Mohawk language, which he did in a quite orderly fashion. About 1768 he married Christine, the daughter of an Oneida chief, whom he had met in school. He then settled with her on a farm near Canajoharie which he had inherited. While here, Brant assisted in revising the Mohawk prayer book and translating the Acts of the Apostles into the Mohawk language. He also joined the Anglican Church, was a regular communicant, and evinced a great desire to bring Christianity to his people. His wife died of tuberculosis about 1771, leaving him with a son and a daughter. In 1773, he married his wife's sister, Susannah, who died a few months afterward, also of tuberculosis. In 1780, he married Catherine Adonwentishon Croghan, the daughter of the prominent American colonist, Indian agent, fur trader, and New York-Pennsylvania-Ohio landowner/speculator George Croghan and a Mohawk mother, Catharine Tekarihoga. They had seven children: Joseph, Jacob, John, Margaret, Catherine(2), Mary and Elizabeth. Through her mother, Catharine Adonwentishon was head of the Turtle

Puritan Ideology and the American Society Essay

Puritan Ideology and the American Society - Essay Example Theoretically, the Puritans gave primary importance to purity or keeping themselves away from sinful way of life. They not only practiced moral values and holy acts by themselves but also intended to bring others to the same path. They proposed to encounter several difficulties and thorns throughout their way to salvation. The Puritans strived to proclaim a ‘True God’ to everyone even in hardest moments of persecution and exile. Undoubtedly, Puritans could influence the American society so significantly that it brought considerable level of reformation not only in faith and practice but also in every sphere of social life. Puritans confronted numerous difficulties in the new land. First of all, the challenge of getting accustomed with environmental change was beyond imagination. Sudden climatic change had adverse effects on their survival as such changes were quite unfamiliar to them. For instance, due to the climatic changes many became the victims of various deadly diseases. Hence, the new land brought many hurdles against their missionary practices as well. Another major problem faced by the Puritans was nothing but interacting with the natives who had been following some extreme ideologies about spirituality. Moreover, the diverse tribes of the American society revolted against the Puritans and totally opposed their views, ideas and activities. According Miller (as qtd in Fischer), the voluntary following of scripture and meaningful obedience were the fundamental practices of the Puritans. Ultimately, this in turn caused a bit chaos in the state, making the lives of the Puritans uneasy and pathetic . However, they never abandoned their mission of preaching true God to the ignorant. Even today America has a sense of mission in all global issues, and this is one of the major influences of the Puritan thought. To illustrate, the community of Puritans had long cherished and well rationalized goal of spreading the gospel. Bradford said that the puritans considered themselves as chosen ones. â€Å"They believed themselves to be God’s â€Å"divinely chosen† people† and also it is well described that the focus of the puritans was individual’s personal religious experience trough purification of self and society† (as qtd in Carbone). They could not comprehend the ideology of the Church of England and hence they also strongly condemned certain religious practices and doctrines. Taking the human race to divinity was the primary goal of the community. More significantly, they took initiatives in bringing the fallen back to the true path. This ‘rise from the fall’ clearly illustrated their vision of creating a new world with authentic knowledge of God. Puritans who settled in Massachusetts Bay Colony followed their own ideology and practices in particular. The group of believers stick to their faith and followed all concerned rituals and ceremonies while neglecting or ignoring outsiders. According to Bradstreet, puritan ideology had an extraordinary or outstanding significance. â€Å"Puritanism was more than a religious belief; it was a way of life† (Parrish Co). Although Puritanism was no more a political entity after the seventeenth century, it continued to influence the social and political environment of the American life. The prominent American values like individualism, egalitarianism, and optimism are the outcome of Puritan influence during the colonial period. The Puritan ideology was acceptable to many