Principles And Practices Of Network Security
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Principles And Practices Of Network Security
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Author : Dr. Ihtiram Raza Khan
language : en
Publisher: Xoffencerpublication
Release Date : 2023-05-03
Principles And Practices Of Network Security written by Dr. Ihtiram Raza Khan and has been published by Xoffencerpublication this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-03 with Computers categories.
In order to provide protection against DoS assaults, the security system interfaces with the AODV routing protocol using techniques based on Route Request (RREQ). It employs not one but two different kinds of techniques. When an inside hostile node launches a DoS attack by flooding the network with RREQs, this strategy may be used to minimise the impacts of the assault in pure AODV routing protocol. In this scenario, the DoS attack is carried out by flooding the network with RREQs. The node in the centre of the network both observes and participates in the conversation that is taking place between the evil node, the sender node, and the recipient node. One of the intermediate nodes on the ideal route, which has a total of four nodes, is comprised of the malicious node and three of its neighbours. This makes up one of the nodes on the ideal path. The malicious node inundates the network with traffic by continuously submitting 10 RREQ queries at each and every second. Due to the fact that its close neighbours are aware of the RREQ_RATELIMIT, each of them will only transmit a maximum of 10 RREQs to it at any one time. Due to the fact that these nodes are only able to receive a maximum of three RREQs from their neighbours in a single second, the neighbours of these nodes are required to transmit a total of seven RREQs. In addition, the RREQs of a total of four must be sent by the neighbours of the nodes in question. Because the resources of the malicious node's neighbours are totally occupied in processing and forwarding the RREQ's that originate from it, the path that connects the blue nodes, if it is formed at all, will consist of a greater number of intermediate nodes. This is because the malicious node is the source of the RREQ's that are being processed and forwarded by its neighbours. This is due to the fact that the RREQs that come from the malicious node have an effect on the nodes that are neighbouring it. As a direct result of this, a denial of service attack is carried out since the legitimate nodes are disconnected from the services offered by other nodes, whose resources are being wasted as a direct result of the flooding. During the phase of the AODV scheme's operation in which two legitimate nodes are attempting to communicate with one another, a malicious node will bombard the network with RREQs in order to disrupt the process. According to this strategy, there is a maximum number of RREQs that may be obtained from a single neighbour, and that number is capped at that amount. As a consequence of this, the neighbours of the malicious node will only accept and transmit three RREQ packets received from it during a period of one second.
Network Security Principles And Practices
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Author : Saadat Malik
language : en
Publisher: Cisco Press
Release Date : 2003
Network Security Principles And Practices written by Saadat Malik and has been published by Cisco Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Computers categories.
Expert solutions for securing network infrastructures and VPNs bull; Build security into the network by defining zones, implementing secure routing protocol designs, and building safe LAN switching environments Understand the inner workings of the Cisco PIX Firewall and analyze in-depth Cisco PIX Firewall and Cisco IOS Firewall features and concepts Understand what VPNs are and how they are implemented with protocols such as GRE, L2TP, and IPSec Gain a packet-level understanding of the IPSec suite of protocols, its associated encryption and hashing functions, and authentication techniques Learn how network attacks can be categorized and how the Cisco IDS is designed and can be set upto protect against them Control network access by learning how AAA fits into the Cisco security model and by implementing RADIUS and TACACS+ protocols Provision service provider security using ACLs, NBAR, and CAR to identify and control attacks Identify and resolve common implementation failures by evaluating real-world troubleshooting scenarios As organizations increase their dependence on networks for core business processes and increase access to remote sites and mobile workers via virtual private networks (VPNs), network security becomes more and more critical. In today's networked era, information is an organization's most valuable resource. Lack of customer, partner, and employee access to e-commerce and data servers can impact both revenue and productivity. Even so, most networks do not have the proper degree of security. Network Security Principles and Practices provides an in-depth understanding of the policies, products, and expertise that brings organization to this extremely complex topic and boosts your confidence in the performance and integrity of your network systems and services. Written by a CCIE engineer who participated in the development of the CCIE Security exams, Network Security Principles and Practices is the first book that provides a comprehensive review of topics important to achieving CCIE Security certification. Network Security Principles and Practices is a comprehensive guide to network security threats and the policies and tools developed specifically to combat those threats. Taking a practical, applied approach to building security into networks, the book shows you how to build secure network architectures from the ground up. Security aspects of routing protocols, Layer 2 threats, and switch security features are all analyzed. A comprehensive treatment of VPNs and IPSec is presented in extensive packet-by-packet detail. The book takes a behind-the-scenes look at how the Cisco PIX(r) Firewall actually works, presenting many difficult-to-understand and new Cisco PIX Firewall and Cisco IOSreg; Firewall concepts. The book launches into a discussion of intrusion detection systems (IDS) by analyzing and breaking down modern-day network attacks, describing how an IDS deals with those threats in general, and elaborating on the Cisco implementation of IDS. The book also discusses AAA, RADIUS, and TACACS+ and their usage with some of the newer security implementations such as VPNs and proxy authentication. A complete section devoted to service provider techniques for enhancing customer security and providing support in the event of an attack is also included. Finally, the book concludes with a section dedicated to discussing tried-and-tested troubleshooting tools and techniques that are not only invaluable to candidates working toward their CCIE Security lab exam but also to the security network administrator running the operations of a network on a daily basis.
Cryptography And Network Security
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Author : William Stallings
language : en
Publisher:
Release Date : 2016-09-06
Cryptography And Network Security written by William Stallings and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-06 with Coding theory categories.
For courses in Cryptography, Computer Security, and Network Security The Principles and Practice of Cryptography and Network Security Stallings' Cryptography and Network Security, Seventh Edition, introduces students to the compelling and evolving field of cryptography and network security. In an age of viruses and hackers, electronic eavesdropping, and electronic fraud on a global scale, security is paramount. The purpose of this book is to provide a practical survey of both the principles and practice of cryptography and network security. In the first part of the book, the basic issues to be addressed by a network security capability are explored by providing a tutorial and survey of cryptography and network security technology. The latter part of the book deals with the practice of network security: practical applications that have been implemented and are in use to provide network security. The Seventh Edition streamlines subject matter with new and updated material - including Sage, one of the most important features of the book. Sage is an open-source, multiplatform, freeware package that implements a very powerful, flexible, and easily learned mathematics and computer algebra system. It provides hands-on experience with cryptographic algorithms and supporting homework assignments. With Sage, students learn a powerful tool that can be used for virtually any mathematical application. The book also provides an unparalleled degree of support for instructors and students to ensure a successful teaching and learning experience.
Cryptography And Network Security
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Author : William Stallings
language : en
Publisher: Prentice Hall
Release Date : 2006
Cryptography And Network Security written by William Stallings and has been published by Prentice Hall this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Computers categories.
In this age of viruses and hackers, of electronic eavesdropping and electronic fraud, security is paramount. This solid, up-to-date tutorial is a comprehensive treatment of cryptography and network security is ideal for self-study.Explores the basic issues to be addressed by a network security capability through a tutorial and survey of cryptography and network security technology. Examines the practice of network security via practical applications that have been implemented and are in use today. Provides a simplified AES (Advanced Encryption Standard) that enables readers to grasp the essentials of AES more easily. Features block cipher modes of operation, including the CMAC mode for authentication and the CCM mode for authenticated encryption. Includes an expanded, updated treatment of intruders and malicious software.A useful reference for system engineers, programmers, system managers, network managers, product marketing personnel, and system support specialists.
Network Security Bible
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Author : Eric Cole
language : en
Publisher: John Wiley & Sons
Release Date : 2011-03-31
Network Security Bible written by Eric Cole and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-31 with Computers categories.
The comprehensive A-to-Z guide on network security, fully revised and updated Network security is constantly evolving, and this comprehensive guide has been thoroughly updated to cover the newest developments. If you are responsible for network security, this is the reference you need at your side. Covering new techniques, technology, and methods for approaching security, it also examines new trends and best practices being used by many organizations. The revised Network Security Bible complements the Cisco Academy course instruction in networking security. Covers all core areas of network security and how they interrelate Fully revised to address new techniques, technology, and methods for securing an enterprise worldwide Examines new trends and best practices in use by organizations to secure their enterprises Features additional chapters on areas related to data protection/correlation and forensics Includes cutting-edge topics such as integrated cybersecurity and sections on Security Landscape, with chapters on validating security, data protection, forensics, and attacks and threats If you need to get up to date or stay current on network security, Network Security Bible, 2nd Edition covers everything you need to know.
Principles And Practices Of Network Security
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Author : Dr. Debashis Dev Misra
language : en
Publisher: Xoffencerpublication
Release Date : 2023-08-16
Principles And Practices Of Network Security written by Dr. Debashis Dev Misra and has been published by Xoffencerpublication this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-16 with Computers categories.
In this digital age, having access to knowledge is becoming more and more crucial. Threats to network security, hacks, data breaches, and cyberattacks are on the rise as organizations use their network services to access more important information. For a firm to succeed, information security is essential. Because of this, cybersecurity is a major concern. Network security technologies ensure authorized users have access to your data so they can carry out their activities efficiently while safeguarding it from intrusions. Computer network security is made up of several cybersecurity components, such as a range of tools, settings, and programs that are intended to safeguard the integrity of your network against unauthorized usage. Attacks on the security of a network can take many different shapes and come from many places. Technologies for network security are designed to focus on certain threats while avoiding interruption or harm to your network's core architecture. In order to prevent unauthorized access, modification, abuse, or manipulation of a computer, etc., effective network security serves as a gatekeeper. You and your business may maintain a safe and trustworthy working environment by being aware of the principles of internet security. This chapter will define network security, explore its significance for your firm, and go through the many forms of network security that may be applicable to you. First, let's take a look at networks again. Simply described, a computer network is a group of computers that are linked together in some way. That is used on a regular basis to facilitate corporate and governmental contacts. Computers used by individual users make up the "client" terminals (also known as "nodes") in these networks, together with one or more "servers" and/or "host" computers. Communication systems connect them; some of these systems may be restricted to internal use within an organization, while others may be accessible to the general public. While the Internet is the most well known example of a publicly available network system, numerous private networks 1 | P a ge also make use of publicly accessible communications. Most businesses now have servers that staff members can log into from anywhere with an internet connection, whether they are at the office, at home, or on the road. Therefore, safety is very important. Let's get a handle on Network Security as a concept. Network security refers to the precautions an organization takes to keep its computer system safe, and it is of paramount importance for any business that relies on technology. If the security of a network is breached, unauthorized users, such as hackers or even competitors, might potentially obtain access to sensitive information, leading to data loss or even system damage. The term "network security" refers to the measures taken by businesses, government agencies, and other entities to ensure that their networks are secure. Threats, risks, and vulnerabilities must be identified, and the best methods for mitigating them must be selected, for a network security plan to be successful. Prevention of network failure, abuse, corruption, alteration, intrusion, etc. is made possible by network security measures. Even if you believe your data is secure when posting it to the internet, hackers may be able to access it and use it to commit identity theft or financial fraud. Because of this, protecting your network is crucial. An important aspect of cyber security is network security, which safeguards your network and the information it contains against threats such as hacking, malware, and unauthorized access to hardware and software. Threats, network use, accessibility, and comprehensive threat security all inform what constitutes a "secure" network and its accompanying laws, regulations, and settings.
Cybersecurity Architect S Handbook
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Author : Lester Nichols
language : en
Publisher: Packt Publishing Ltd
Release Date : 2024-03-29
Cybersecurity Architect S Handbook written by Lester Nichols and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-29 with Computers categories.
Discover the ins and outs of cybersecurity architecture with this handbook, designed to enhance your expertise in implementing and maintaining robust security structures for the ever-evolving digital landscape Key Features Gain insights into the cybersecurity architect role and master key skills to excel in it Acquire a diverse skill set for becoming a cybersecurity architect through up-to-date, practical examples Discover valuable tips and best practices to launch your career in cybersecurity Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionStepping into the role of a Cybersecurity Architect (CSA) is no mean feat, as it requires both upskilling and a fundamental shift in the way you view cybersecurity altogether. Cybersecurity Architect’s Handbook is an all-encompassing guide, introducing the essential skills for aspiring CSAs, outlining a path for cybersecurity engineers and newcomers to evolve into architects, and sharing best practices to enhance the skills of existing CSAs. Following a brief introduction to the role and foundational concepts, this book will help you understand the day-to-day challenges faced by CSAs, supported by practical examples. You'll gain insights into assessing and improving your organization’s security posture, concerning system, hardware, and software security. You'll also get to grips with setting user and system policies and protocols through effective monitoring and enforcement, along with understanding countermeasures that protect the system from unauthorized access attempts. To prepare you for the road ahead and augment your existing skills, the book provides invaluable tips and practices that will contribute to your success as a CSA. By the end of this book, you’ll be well-equipped to take up the CSA role and execute robust security solutions.What you will learn Get to grips with the foundational concepts and basics of cybersecurity Understand cybersecurity architecture principles through scenario-based examples Navigate the certification landscape and understand key considerations for getting certified Implement zero-trust authentication with practical examples and best practices Find out how to choose commercial and open source tools Address architecture challenges, focusing on mitigating threats and organizational governance Who this book is for This book is for cybersecurity professionals looking to transition into a cybersecurity architect role. Solution architects interested in understanding the scope of the role and the necessary skills for success will also find this book useful.
Network And Internetwork Security
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Author : William Stallings
language : en
Publisher: Institute of Electrical & Electronics Engineers(IEEE)
Release Date : 1995
Network And Internetwork Security written by William Stallings and has been published by Institute of Electrical & Electronics Engineers(IEEE) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Computers categories.
Network Security Fundamentals Concepts Technologies And Best Practices
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Author : Amit Vyas
language : en
Publisher: Xoffencerpublication
Release Date : 2023-07-17
Network Security Fundamentals Concepts Technologies And Best Practices written by Amit Vyas and has been published by Xoffencerpublication this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-17 with Computers categories.
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:
Cryptography And Network Security Principles And Practices
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Author : William Stallings
language : en
Publisher:
Release Date : 2002
Cryptography And Network Security Principles And Practices written by William Stallings and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Computer networks categories.