Download or read book Understanding 802 1X Port Based Network Authentication written by Aurelio Quann and published by . This book was released on 2021-07-19 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: When devices on enterprise LANs need to connect to other devices, they need a standard method for identifying each other to ensure they are communicating with the device they want to, and that's what 802.1x does. 802.1X can be a complex topic to digest and, like the rest of networking, it can be overwhelming where to start learning about it. This document describes the software and procedures to set up and use IEEE 802.1X Port-Based Network Access Control using Xsupplicant as Supplicant with free radius as a back-end Authentication Server.

Download or read book 802 1X Port Based Authentication written by Edwin Lyle Brown and published by CRC Press. This book was released on 2006-12-19 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Port-based authentication is a "network access control" concept in which a particular device is evaluated before being permitted to communicate with other devices located on the network. 802.1X Port-Based Authentication examines how this concept can be applied and the effects of its application to the majority of computer networks in existence today. 802.1X is a standard that extends the Extensible Authentication Protocol (EAP) over a Local Area Network (LAN) through a process called Extensible Authentication Protocol Over LANs (EAPOL). The text presents an introductory overview of port-based authentication including a description of 802.1X port-based authentication, a history of the standard and the technical documents published, and details of the connections among the three network components. It focuses on the technical aspect of 802.1X and the related protocols and components involved in implementing it in a network. The book provides an in-depth discussion of technology, design, and implementation with a specific focus on Cisco devices. Including examples derived from the 802.1X implementation, it also addresses troubleshooting issues in a Cisco environment. Each chapter contains a subject overview. Incorporating theoretical and practical approaches, 802.1X Port-Based Authentication seeks to define this complex concept in accessible terms. It explores various applications to today's computer networks using this particular network protocol.

Download or read book Implementing NAP and NAC Security Technologies written by Daniel V. Hoffman and published by John Wiley & Sons. This book was released on 2008-04-21 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: "You're ready to see through the misconceptions and misinformation about NAP/NAC that might come your way. Here is an excellent resource for uncovering the actual vulnerabilities and exploits that the various NAP/NAC types can address. - You'll find real-world hacking scenarios, along with complete implementation guidance for the right NAP/NAC solution. - This guide will help you determine what type of solution makes the most sense, based upon the most prevalent risks in your environment."--Jacket.

Download or read book Implementing 802 1X Security Solutions for Wired and Wireless Networks written by Jim Geier and published by John Wiley & Sons. This book was released on 2008-04-14 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implementing 802.1x Security Solutions for Wired and Wireless Networks Now you can approach 802.1x implementation with confidence You know it’s essential, and you’ve heard that it can be tricky — implementing the 802.1x standard. Here is a road map that will steer you safely around the pitfalls, smooth out the rough patches, and guide you to a successful implementation of 802.1x in both wired and wireless networks. Complete with step-by-step instructions, recommendations to help you choose the best solutions, and troubleshooting tips, it lets you benefit from the experience of others who have met the challenge. Get an overview of port-based authentication and network architecture concepts Examine EAPOL, RADIUS, and EAP-Methods protocols Understand 802.1x protocol packet structure and operation Explore and evaluate complete 802.1x-based security solutions for various needs Learn what parts are necessary to construct a complete network access-control system Configure your system and assure that all aspects of it work together Follow step-by-step instructions and screen shots to successfully set up 802.1x-based security solutions and make them work

Download or read book Network Access Control For Dummies written by Jay Kelley and published by John Wiley & Sons. This book was released on 2009-04-13 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network access control (NAC) is how you manage network security when your employees, partners, and guests need to access your network using laptops and mobile devices. Network Access Control For Dummies is where you learn how NAC works, how to implement a program, and how to take real-world challenges in stride. You’ll learn how to deploy and maintain NAC in your environment, identify and apply NAC standards, and extend NAC for greater network security. Along the way you’ll become familiar with what NAC is (and what it isn’t) as well as the key business drivers for deploying NAC. Learn the steps of assessing, evaluating, remediating, enforcing, and monitoring your program Understand the essential functions of Authentication, Authorization, and Accounting Decide on the best NAC approach for your organization and which NAC policies are appropriate Discover how to set policies that are enforceable and reasonable enough to be followed, yet still effective Become familiar with the architectures and standards essential to NAC Involve and motivate everyone in the organization whose support is critical to a successful implementation Network Access Control For Dummies shows you the steps for planning your implementation, who should be involved, where enforcement should occur, and much more. When you flip the switch, you’ll know what to expect.

Download or read book 802 11 Wireless Networks The Definitive Guide written by Matthew S. Gast and published by "O'Reilly Media, Inc.". This book was released on 2005-04-25 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: As we all know by now, wireless networks offer many advantages over fixed (or wired) networks. Foremost on that list is mobility, since going wireless frees you from the tether of an Ethernet cable at a desk. But that's just the tip of the cable-free iceberg. Wireless networks are also more flexible, faster and easier for you to use, and more affordable to deploy and maintain.The de facto standard for wireless networking is the 802.11 protocol, which includes Wi-Fi (the wireless standard known as 802.11b) and its faster cousin, 802.11g. With easy-to-install 802.11 network hardware available everywhere you turn, the choice seems simple, and many people dive into wireless computing with less thought and planning than they'd give to a wired network. But it's wise to be familiar with both the capabilities and risks associated with the 802.11 protocols. And 802.11 Wireless Networks: The Definitive Guide, 2nd Edition is the perfect place to start.This updated edition covers everything you'll ever need to know about wireless technology. Designed with the system administrator or serious home user in mind, it's a no-nonsense guide for setting up 802.11 on Windows and Linux. Among the wide range of topics covered are discussions on: deployment considerations network monitoring and performance tuning wireless security issues how to use and select access points network monitoring essentials wireless card configuration security issues unique to wireless networks With wireless technology, the advantages to its users are indeed plentiful. Companies no longer have to deal with the hassle and expense of wiring buildings, and households with several computers can avoid fights over who's online. And now, with 802.11 Wireless Networks: The Definitive Guide, 2nd Edition, you can integrate wireless technology into your current infrastructure with the utmost confidence.

Download or read book Wireless Hacks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing with the successful Hack Series, this title provides real-world working examples of how to make useful things happen with wireless equipment.

Download or read book Implementing 802 1X Security Solutions for Wired and Wireless Networks written by Jim Geier and published by John Wiley & Sons. This book was released on 2008-06-02 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implementing 802.1x Security Solutions for Wired and Wireless Networks Now you can approach 802.1x implementation with confidence You know it’s essential, and you’ve heard that it can be tricky — implementing the 802.1x standard. Here is a road map that will steer you safely around the pitfalls, smooth out the rough patches, and guide you to a successful implementation of 802.1x in both wired and wireless networks. Complete with step-by-step instructions, recommendations to help you choose the best solutions, and troubleshooting tips, it lets you benefit from the experience of others who have met the challenge. Get an overview of port-based authentication and network architecture concepts Examine EAPOL, RADIUS, and EAP-Methods protocols Understand 802.1x protocol packet structure and operation Explore and evaluate complete 802.1x-based security solutions for various needs Learn what parts are necessary to construct a complete network access-control system Configure your system and assure that all aspects of it work together Follow step-by-step instructions and screen shots to successfully set up 802.1x-based security solutions and make them work

Download or read book Wired 802 1X Deployment Guide written by Rick Stuble and published by . This book was released on 2021-07-19 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: When devices on enterprise LANs need to connect to other devices, they need a standard method for identifying each other to ensure they are communicating with the device they want to, and that's what 802.1x does. 802.1X can be a complex topic to digest and, like the rest of networking, it can be overwhelming where to start learning about it. This document describes the software and procedures to set up and use IEEE 802.1X Port-Based Network Access Control using Xsupplicant as Supplicant with free radius as a back-end Authentication Server.

Download or read book Packet Guide to Routing and Switching written by Bruce Hartpence and published by "O'Reilly Media, Inc.". This book was released on 2011-08-25 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Go beyond layer 2 broadcast domains with this in-depth tour of advanced link and internetwork layer protocols, and learn how they enable you to expand to larger topologies. An ideal follow-up to Packet Guide to Core Network Protocols, this concise guide dissects several of these protocols to explain their structure and operation. This isn’t a book on packet theory. Author Bruce Hartpence built topologies in a lab as he wrote this guide, and each chapter includes several packet captures. You’ll learn about protocol classification, static vs. dynamic topologies, and reasons for installing a particular route. This guide covers: Host routing—Process a routing table and learn how traffic starts out across a network Static routing—Build router routing tables and understand how forwarding decisions are made and processed Spanning Tree Protocol—Learn how this protocol is an integral part of every network containing switches Virtual Local Area Networks—Use VLANs to address the limitations of layer 2 networks Trunking—Get an indepth look at VLAN tagging and the 802.1Q protocol Routing Information Protocol—Understand how this distance vector protocol works in small, modern communication networks Open Shortest Path First—Discover why convergence times of OSPF and other link state protocols are improved over distance vectors

Download or read book Zero Trust Networks written by Evan Gilman and published by "O'Reilly Media, Inc.". This book was released on 2017-06-19 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The perimeter defenses guarding your network perhaps are not as secure as you think. Hosts behind the firewall have no defenses of their own, so when a host in the "trusted" zone is breached, access to your data center is not far behind. That’s an all-too-familiar scenario today. With this practical book, you’ll learn the principles behind zero trust architecture, along with details necessary to implement it. The Zero Trust Model treats all hosts as if they’re internet-facing, and considers the entire network to be compromised and hostile. By taking this approach, you’ll focus on building strong authentication, authorization, and encryption throughout, while providing compartmentalized access and better operational agility. Understand how perimeter-based defenses have evolved to become the broken model we use today Explore two case studies of zero trust in production networks on the client side (Google) and on the server side (PagerDuty) Get example configuration for open source tools that you can use to build a zero trust network Learn how to migrate from a perimeter-based network to a zero trust network in production

Download or read book Practical Cisco Unified Communications Security written by Brett Hall and published by Cisco Press. This book was released on 2020-12-04 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the foundations of modern Cisco Unified Communications (UC) system security This guide helps you build foundational knowledge for securing modern Cisco Unified Communications environments that support voice, video, messaging, and meetings, and support different types of real-time collaboration capabilities based on mobile/remote access and mobile devices based on bring-your-own-device (BYOD) initiatives. Writing for administrators and managers, two Cisco collaboration experts bring together methods and insights to illuminate both the “why” and the “how” of effective collaboration security. Using the proven “Explain, Demonstrate, and Verify” methodology, they explain each threat, demonstrate remediation, and show how to confirm correct implementation. You'll walk through securing each attack surface in a logical progression, across each Cisco UC application domain. The authors address key updates to Cisco collaboration architecture, including Expressway, Cisco Meeting Server, encryption enhancements, and advanced business-to-business collaboration. You'll find quick-reference checklists in each chapter, and links to more detail wherever needed. Begin by protecting your workforce through basic physical security and life/safety techniques Understand how attackers seek to compromise your UC system's network environment—and your best countermeasures Maintain security across all UC deployment types n Protect core UC applications by locking down and hardening the core operating system Use encryption to protect media and signaling, and enforce secure authentication Secure Cisco Unified Communications Manager, Cisco Unity Connection, and Cisco Meeting Server Deploy Session Border Controllers to provide security controls for VoIP and video traffic Provide additional protection at the edge of the network Safeguard cloud-based and hybrid-cloud services Enable organizations to seamlessly and securely connect to cloud UC services Allow remote teleworker users to connect safely to local UC resources

Download or read book Designing and Deploying 802 11 Wireless Networks written by Jim Geier and published by Cisco Press. This book was released on 2015-04-29 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designing and Deploying 802.11 Wireless Networks Second Edition A Practical Guide to Implementing 802.11n and 802.11ac Wireless Networks For Enterprise-Based Applications Plan, deploy, and operate high-performance 802.11ac and 802.11n wireless networks The new 802.11ac standard enables WLANs to deliver significantly higher performance. Network equipment manufacturers have refocused on 802.11ac- and 802.11n-compliant solutions, rapidly moving older versions of 802.11 toward “legacy” status. Now, there’s a complete guide to planning, designing, installing, testing, and supporting 802.11ac and 802.11n wireless networks in any environment, for virtually any application. Jim Geier offers practical methods, tips, and recommendations that draw on his decades of experience deploying wireless solutions and shaping wireless standards. He carefully introduces 802.11ac’s fundamentally different design, site survey, implementation, and network configuration techniques, helping you maximize performance and avoid pitfalls. Geier organizes each phase of WLAN deployment into clearly defined steps, making the entire planning and deployment process easy to understand and execute. He illuminates key concepts and methods through realistic case studies based on current Cisco products, while offering tips and techniques you can use with any vendor’s equipment. To build your skills with key tasks, you’ll find several hands-on exercises relying on free or inexpensive tools. Whether you’re deploying an entirely new wireless network or migrating from older equipment, this guide contains all the expert knowledge you’ll need to succeed. Jim Geier has 30 years of experience planning, designing, analyzing and implementing communications, wireless, and mobile systems. Geier is founder and Principal Consultant of Wireless-Nets, Ltd., providing wireless analysis and design services to product manufacturers. He is also president, CEO, and co-founder of Health Grade Networks, providing wireless network solutions to hospitals, airports, and manufacturing facilities. His books include the first edition of Designing and Deploying 802.11n Wireless Networks (Cisco Press); as well as Implementing 802.1X Security Solutions and Wireless Networking Handbook. Geier has been active in the IEEE 802.11 Working Group and Wi-Fi Alliance; has chaired the IEEE Computer Society (Dayton Section) and various conferences; and served as expert witness in patent litigation related to wireless and cellular technologies. Review key 802.11 concepts, applications, markets, and technologies Compare ad hoc, mesh, and infrastructure WLANs and their components Consider the impact of radio signal interference, security vulnerabilities, multipath propagation, roaming, and battery limitations Thoroughly understand today’s 802.11 standards in the context of actual network deployment and support Plan your deployment: scoping, staffing, schedules, budgets, risks, feasibility analysis, and requirements Architect access networks and distribut

Download or read book Networking 2004 written by Nikolas Mitrou and published by Springer Science & Business Media. This book was released on 2004-04-28 with total page 1551 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Third IFIP-TC6 Networking Conference, NETWORKING 2004, held in Athens, Greece, in May 2004. The 103 revised full papers and 40 revised short papers were carefully reviewed and selected from 539 submissions. The papers are organized in topical sections on network security; TCP performance; ad-hoc networks; wavelength management; multicast; wireless network performance; inter-domain routing; packet classification and scheduling; services and monitoring; admission control; competition in networks; 3G/4G wireless systems; MPLS and related technologies; flow and congestion control; performance of IEEE 802.11; optical networks; TCP and congestion; key management; authentication and DOS prevention; energy aspects of wireless networks; optical network access; routing in ad-hoc networks; fault detection, restoration, and tolerance; QoS metrics, algorithms, and architecture; content distribution, caching, and replication; and routing theory and path computation.

Download or read book CompTIA Security Rapid Review Exam SY0 301 written by Michael Gregg and published by Pearson Education. This book was released on 2012-12-15 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assess your readiness for CompTIA Security+ Exam SY0-301—and quickly identify where you need to focus and practice. This practical, streamlined guide walks you through each exam objective, providing "need-to-know" checklists, review questions, tips, and links to further study—all designed to help bolster your preparation. Reinforce your exam prep with a Rapid Review of these objectives: Network security Compliance and operational security Threats and vulnerabilities Application, data and host security Access control and identity management Cryptography This book is an ideal complement to the in-depth training of the Microsoft Press Training Kit and other exam-prep resources for CompTIA Security+ Exam SY0-301.

Download or read book Evaluation of Secure 802 1X Port Based Network Access Authentication Over 802 11 Wireless Local Area Networks written by Huseyin S. Ozturk and published by . This book was released on 2003-03-01 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since wireless technology has been used in Local Area Networks (LAN), our networks are easier to build and are more scalable and mobile than legacy structures. While providing these functionalities, Wireless LAN (WLAN)'s have some security vulnerabilities that should be addressed. Failing to examine the security risks of WLAN technology and to take the necessary countermeasures may result in unauthorized entry into the legacy local area networks and other attacks. A secure connection to an intranet, which holds critical data and applications, must be the utmost consideration in the effort to protect critical resources. This thesis builds an open-source test-bed for evaluating WLAN security protocols. Moreover, it investigates the suitability of the IEEE 802.1X standard to provide the required security framework to WLANs. This research determines that the IEEE 802.1X could enhance the security level in authentication and privacy by enabling the rekeying process but would not prevent Denial of Service attacks via unauthenticated management frames.

Download or read book Network Security Technologies and Solutions CCIE Professional Development Series written by Yusuf Bhaiji and published by Pearson Education. This book was released on 2008-03-20 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: CCIE Professional Development Network Security Technologies and Solutions A comprehensive, all-in-one reference for Cisco network security Yusuf Bhaiji, CCIE No. 9305 Network Security Technologies and Solutions is a comprehensive reference to the most cutting-edge security products and methodologies available to networking professionals today. This book helps you understand and implement current, state-of-the-art network security technologies to ensure secure communications throughout the network infrastructure. With an easy-to-follow approach, this book serves as a central repository of security knowledge to help you implement end-to-end security solutions and provides a single source of knowledge covering the entire range of the Cisco network security portfolio. The book is divided into five parts mapping to Cisco security technologies and solutions: perimeter security, identity security and access management, data privacy, security monitoring, and security management. Together, all these elements enable dynamic links between customer security policy, user or host identity, and network infrastructures. With this definitive reference, you can gain a greater understanding of the solutions available and learn how to build integrated, secure networks in today’s modern, heterogeneous networking environment. This book is an excellent resource for those seeking a comprehensive reference on mature and emerging security tactics and is also a great study guide for the CCIE Security exam. “Yusuf’s extensive experience as a mentor and advisor in the security technology field has honed his ability to translate highly technical information into a straight-forward, easy-to-understand format. If you’re looking for a truly comprehensive guide to network security, this is the one! ” –Steve Gordon, Vice President, Technical Services, Cisco Yusuf Bhaiji, CCIE No. 9305 (R&S and Security), has been with Cisco for seven years and is currently the program manager for Cisco CCIE Security certification. He is also the CCIE Proctor in the Cisco Dubai Lab. Prior to this, he was technical lead for the Sydney TAC Security and VPN team at Cisco. Filter traffic with access lists and implement security features on switches Configure Cisco IOS router firewall features and deploy ASA and PIX Firewall appliances Understand attack vectors and apply Layer 2 and Layer 3 mitigation techniques Secure management access with AAA Secure access control using multifactor authentication technology Implement identity-based network access control Apply the latest wireless LAN security solutions Enforce security policy compliance with Cisco NAC Learn the basics of cryptography and implement IPsec VPNs, DMVPN, GET VPN, SSL VPN, and MPLS VPN technologies Monitor network activity and security incident response with network and host intrusion prevention, anomaly detection, and security monitoring and correlation Deploy security management solutions such as Cisco Security Manager, SDM, ADSM, PDM, and IDM Learn about regulatory compliance issues such as GLBA, HIPPA, and SOX This book is part of the Cisco CCIE Professional Development Series from Cisco Press, which offers expert-level instr