Author: Amit Vyas
Publisher: Xoffencerpublication
ISBN: 8119534069
Category : Computers
Languages : en
Pages : 211
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Book Description
The phrase "network security" refers to the measures and processes that are carried out in order to secure computer networks and the resources that are associated with them against unauthorized access, misapplication, modification, or interruption. This may be done by preventing unauthorized users from accessing the network, misusing the network's resources, or interrupting the network's operation. It is of the highest importance to preserve the security of these networks in a world that is getting more and more integrated, where information is routinely traded and transmitted across a variety of different networks. A secure environment that safeguards the availability, integrity, and confidentiality of data and network resources is the primary goal of network security. This purpose requires that a secure environment be provided. This is achieved by ensuring that these assets are not accessible to unauthorized parties. The protection of confidentiality ensures that sensitive information may only be accessed and read by those individuals who have been specifically granted permission to do so. The reliability of the data will not be compromised in any way, and it will maintain its integrity even while being sent and stored. This is what is meant by "data integrity." When it comes to a network, having high availability ensures that all of its services and resources may be accessible by authorized users whenever it is necessary for them to do so. The safeguarding of a computer network calls for a combination of hardware, software, and operational controls to be implemented. These protections protect the network against a wide range of attacks, including those listed below:
Author: Dr. Satvika
Publisher: Xoffencerpublication
ISBN: 8119534263
Category : Computers
Languages : en
Pages : 236
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Book Description
In order to have a complete understanding of the function that ISA Server plays in network security, it is necessary to first have a broad understanding of what network and Internet security entails, why it is vital, and how it may be achieved by means of an all-encompassing security policy. Only then will you be able to understand how firewalls work and how functions. After that, you will be able to comprehend the operation of ISA in addition to the workings of firewalls. Within the realm of information technology (IT), network security is a pressing problem that is also rapidly becoming into a prominent (and often lucrative) area of specialized knowledge and experience. Users of the internet who are technically savvy frequent in large numbers websites that place a strong emphasis on data protection. There has been a rise in the frequency with which certifications that are concerned with security are adopted. Biometric identification and verification used to be the realm of science fiction writers and maybe a few highly secret government agencies, but in today's day and age, such arcane security measures are considered to be standard operating procedure in corporate America. In spite of all of the attention that is being given to security, many firms continue to install security measures in a way that is almost wholly random. There is no system that has been well-thought-out to ensure that all of the components are compatible with one another, and this is a problem. Only two of the numerous sides that are covered in computer security are the protection of the physical hardware as well as the electrical bits and bytes that make up the information that is stored on the network. Computer security also includes the protection of many other aspects. In the following sentence, we will provide a high-level overview of what we mean when we speak about "security" and how it pertains to your computer network. This will be followed by a review of some of the key points. This term may be a little misleading when it comes to the safety of computers and networks since it indicates a degree of protection that is essentially unreachable in the connectivity-oriented computing world of today. Because of this, the same dictionary 1 | P a ge gives yet another meaning that is unique to computer science. This definition is as follows: "The degree to which a program or device is protected from being used in an unauthorized manner" [italics added]. This definition contains the unstated stipulation that the aims of security and accessibility, the two primary concerns on the minds of many network managers, are, by their very natures, diametrically opposed to one another. This is an implicit caveat in the definition. The accessibility and protection of users' data are often cited as the two most important concerns of network administrators. Your data will have a lower level of protection if it is easier for unauthorized parties to have access to it. In a same vein, if you guard it with a higher level of vigilance, you will make it harder for anybody to have access to it. Every strategy for achieving security entails some level of work to locate a happy medium between the two poles of the spectrum. You will need to familiarize yourself with the terminology that security professionals use in order to appreciate the fundamentals; similarly, this is the case in any other specialized sector that you may be interested in. At the end of this, you will discover a list of some common phrases that you are likely to come across when working in the subject of information technology security. If you are just starting out in the industry, the information on this list will be useful to you. A well-known hacker's slogan is "Hack the world!" Other well-known hacker slogans are "Information wants to be free" and the simpler but more positive "Information wants to be free." The fact of the issue is, however, that it is relevant not only to those people who are trying to acquire access to material that they are not permitted to examine, but also to those people who are attempting to secure themselves from the trespassers. This is because the reality of the matter is that it is applicable to both groups of people. The old adage "Know thy enemy" is still the first and most crucial stage in winning any fight, and network security is a war over who owns and controls the information on your computer. Therefore, it is essential to have a thorough understanding of your adversary. This piece of wisdom has been passed down from generation to generation since the beginning of time. In order to prevent the theft of network resources, damage to those resources, or exposure of those resources when it is not necessary, you need to have a knowledge of who initiates these actions, why they do it, and how they do it.
Author: Eric Maiwald
Publisher: McGraw Hill Professional
ISBN: 9780072230932
Category : Computers
Languages : en
Pages : 676
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Book Description
This volume is designed to teach fundamental network security principles to IT and CIS students enrolled in college level programs. It looks at firewalls, wireless security, desktop protection, biometrics, Windows.NET Server, IDS technology and standards such as ISO 17799.
Author: Matthew Strebe
Publisher: John Wiley & Sons
ISBN: 0782151361
Category : Computers
Languages : en
Pages : 333
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Book Description
The world of IT is always evolving, but in every area there are stable, core concepts that anyone just setting out needed to know last year, needs to know this year, and will still need to know next year. The purpose of the Foundations series is to identify these concepts and present them in a way that gives you the strongest possible starting point, no matter what your endeavor. Network Security Foundations provides essential knowledge about the principles and techniques used to protect computers and networks from hackers, viruses, and other threats. What you learn here will benefit you in the short term, as you acquire and practice your skills, and in the long term, as you use them. Topics covered include: Why and how hackers do what they do How encryption and authentication work How firewalls work Understanding Virtual Private Networks (VPNs) Risks posed by remote access Setting up protection against viruses, worms, and spyware Securing Windows computers Securing UNIX and Linux computers Securing Web and email servers Detecting attempts by hackers
Author: Markus Christen
Publisher: Springer Nature
ISBN: 3030290530
Category : Philosophy
Languages : en
Pages : 388
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Book Description
This open access book provides the first comprehensive collection of papers that provide an integrative view on cybersecurity. It discusses theories, problems and solutions on the relevant ethical issues involved. This work is sorely needed in a world where cybersecurity has become indispensable to protect trust and confidence in the digital infrastructure whilst respecting fundamental values like equality, fairness, freedom, or privacy. The book has a strong practical focus as it includes case studies outlining ethical issues in cybersecurity and presenting guidelines and other measures to tackle those issues. It is thus not only relevant for academics but also for practitioners in cybersecurity such as providers of security software, governmental CERTs or Chief Security Officers in companies.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309043883
Category : Computers
Languages : en
Pages : 320
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Book Description
Computers at Risk presents a comprehensive agenda for developing nationwide policies and practices for computer security. Specific recommendations are provided for industry and for government agencies engaged in computer security activities. The volume also outlines problems and opportunities in computer security research, recommends ways to improve the research infrastructure, and suggests topics for investigators. The book explores the diversity of the field, the need to engineer countermeasures based on speculation of what experts think computer attackers may do next, why the technology community has failed to respond to the need for enhanced security systems, how innovators could be encouraged to bring more options to the marketplace, and balancing the importance of security against the right of privacy.
Author: John M. Borky
Publisher: Springer
ISBN: 3319956698
Category : Technology & Engineering
Languages : en
Pages : 788
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Book Description
This textbook presents a proven, mature Model-Based Systems Engineering (MBSE) methodology that has delivered success in a wide range of system and enterprise programs. The authors introduce MBSE as the state of the practice in the vital Systems Engineering discipline that manages complexity and integrates technologies and design approaches to achieve effective, affordable, and balanced system solutions to the needs of a customer organization and its personnel. The book begins with a summary of the background and nature of MBSE. It summarizes the theory behind Object-Oriented Design applied to complex system architectures. It then walks through the phases of the MBSE methodology, using system examples to illustrate key points. Subsequent chapters broaden the application of MBSE in Service-Oriented Architectures (SOA), real-time systems, cybersecurity, networked enterprises, system simulations, and prototyping. The vital subject of system and architecture governance completes the discussion. The book features exercises at the end of each chapter intended to help readers/students focus on key points, as well as extensive appendices that furnish additional detail in particular areas. The self-contained text is ideal for students in a range of courses in systems architecture and MBSE as well as for practitioners seeking a highly practical presentation of MBSE principles and techniques.
Author: Joseph Migga Kizza
Publisher: Springer Science & Business Media
ISBN: 1848009178
Category : Computers
Languages : en
Pages : 483
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Book Description
If we are to believe in Moore’s law, then every passing day brings new and advanced changes to the technology arena. We are as amazed by miniaturization of computing devices as we are amused by their speed of computation. Everything seems to be in ? ux and moving fast. We are also fast moving towards ubiquitous computing. To achieve this kind of computing landscape, new ease and seamless computing user interfaces have to be developed. Believe me, if you mature and have ever program any digital device, you are, like me, looking forward to this brave new computing landscape with anticipation. However, if history is any guide to use, we in information security, and indeed every computing device user young and old, must brace themselves for a future full of problems. As we enter into this world of fast, small and concealable ubiquitous computing devices, we are entering fertile territory for dubious, mischievous, and malicious people. We need to be on guard because, as expected, help will be slow coming because ? rst, well trained and experienced personnel will still be dif? cult to get and those that will be found will likely be very expensive as the case is today.
Author: Shafiullah Khan
Publisher: Springer Science & Business Media
ISBN: 3642361692
Category : Technology & Engineering
Languages : en
Pages : 513
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Book Description
“Wireless Networks and Security” provides a broad coverage of wireless security issues including cryptographic coprocessors, encryption, authentication, key management, attacks and countermeasures, secure routing, secure medium access control, intrusion detection, epidemics, security performance analysis, security issues in applications. The contributions identify various vulnerabilities in the physical layer, MAC layer, network layer, transport layer, and application layer, and focus on ways of strengthening security mechanisms and services throughout the layers. This carefully edited monograph is targeting for researchers, post-graduate students in universities, academics, and industry practitioners or professionals.
Author: Charles J. Brooks
Publisher: John Wiley & Sons
ISBN: 1119362393
Category : Computers
Languages : en
Pages : 786
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Book Description
An accessible introduction to cybersecurity concepts and practices Cybersecurity Essentials provides a comprehensive introduction to the field, with expert coverage of essential topics required for entry-level cybersecurity certifications. An effective defense consists of four distinct challenges: securing the infrastructure, securing devices, securing local networks, and securing the perimeter. Overcoming these challenges requires a detailed understanding of the concepts and practices within each realm. This book covers each challenge individually for greater depth of information, with real-world scenarios that show what vulnerabilities look like in everyday computing scenarios. Each part concludes with a summary of key concepts, review questions, and hands-on exercises, allowing you to test your understanding while exercising your new critical skills. Cybersecurity jobs range from basic configuration to advanced systems analysis and defense assessment. This book provides the foundational information you need to understand the basics of the field, identify your place within it, and start down the security certification path. Learn security and surveillance fundamentals Secure and protect remote access and devices Understand network topologies, protocols, and strategies Identify threats and mount an effective defense Cybersecurity Essentials gives you the building blocks for an entry level security certification and provides a foundation of cybersecurity knowledge
