Elements of Network Security Louis Kibby Network / Datacom I TCM 537 Mr. Stuart Sandler November 28‚ 2005 Elements of Network Security Introduction The primary objective of a network security system is to‚ in a cost effective manner‚ balance convenient access to legitimate users and inaccessibility to attackers. In a nutshell‚ the goal is to prevent connectivity to anyone intending to cause harm to the network. The harm to which this paper refers can come in the following forms: 1. Application-level
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Infrared security alarm Introduction: Not so long ago an alarm was a fairly rare sight‚ however now almost every house has an alarm of some kind. One common kind of security system is an infrared home security system. These are so popular because they are easy to install without having to drill holes and lay cable infrared radiation is invisible to the human eye but can be detected by electronic devices designed for such a purpose. The sensors are set at the door or some supervised
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equipment‚ software and network protocols. It can apply to wired and wireless mode of transmission of data and connectivity between networked components. There are several network layouts/topologies among which are (a) Bus topology. (b) Star topology. (c) Ring topology and last but not the least (d) mesh/hybrid topology. Their names are very descriptive of how they look like. May I also mention in passing‚ that we have different types of networks such as 1) LANs (Local Area Networks) which are networks
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not have been possible without the kind support and help of many individuals. I would like to extend my sincere thanks to all of them. I would like to express my deep gratitude to my teachers Ms. Tharanga Wijesuriya & Mr. Praveen Mahendran – Lecturers of Employability and professional development module for the patient guidance and enthusiastic encouragement. I would also like to thank Mr.Hareen –General Manager of ICBT campus Nugegoda for his advice and assistance given to me when I was started
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A wise man by the name of Benjamin Franklin once said‚ “Either write something worth reading or do something worth writing.” Jack Gantos from the book Hole in my Life‚ reads books quite often‚ on his journey to become a professional writer. Although his life may have not went in the direction he wanted to‚ the books he read were what kept him level headed throughout his life. Many may argue that books hindered him through his journey‚ causing him to fall into legal trouble early in life. However
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The history of (ISC)2 and the CISSP exam • Recertification requirements • An assessment test to gauge your current security knowledge This book is intended to welcome you to the exciting world of security and start you on a new path toward obtaining your CISSP certification! The Certified Information Systems Security Professional (CISSP) exam covers ten domains‚ each of which may be considered a full field of study in itself‚ with many individual books and papers written on just that subject
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actions‚ which represent a threat to information safety. Particular role in this process has been played by appearance of personal computer (PC)‚ which has made computers‚ software and other informational technologies available to general public. Wide distribution of PC and impossibility of conducting effective control of their use have resulted in the decreasing security level of information systems. In the current situation‚ data processing has moved the problems of information security forward
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Many users are subject of Security and Privacy on the Internet issue. The term "information" now is more used when defining a special product or article of trade which could be bought‚ sold‚ exchanged‚ etc. Often the price of information is higher many times than the cost of the very computers and technologies where it is functioning. Naturally it raises the need of protecting information from unauthorized access‚ theft‚ destruction‚ and other crimes. However‚ many users do not realize that they
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In contrast to client-server networks there is no dedicated server in peer-to-peer architecture. Thus each computer in such a network is part server and part client. This means that each computer on the network is free to share its own resources. A computer which is connected to a printer may even share the printer so that all other computers may access it over the network. Peer-to-peer networks do not require the same levels of performance and security as dedicated server networks require. One can
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Common Internet Server Operating Systems POS/355 Internet Servers (also commonly known as Web Servers)‚ primarily function to deliver web pages on request to clients. When a user types a domain name into their browser‚ or clicks on a link‚ the request is first sent to a Domain Name Server (DNS). DNSs are servers that hold databases full of domain names and IP addresses. When a DNS receives a request‚ it matches the domain name (ie‚ www.CriketX.com) to the IP address of the server that holds
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