Understanding and troubleshooting CEF in Cisco routers and switches
Nakia Stringfield, CCIE® No. 13451/Russ White, CCIE No. 2635/Stacia McKee
How does a router switch a packet? What is the difference between routing a packet, switching a frame, and packet switching? What is the Cisco® Express Forwarding (CEF) feature referred to in Cisco documentation and commonly found in Cisco IOS® commands? CEF is a general term that describes the mechanism by which Cisco routers and Catalyst® switches packet-switch (route) frames. CEF is found in almost all Cisco routers and Catalyst switches, and understanding how CEF operates can improve the performance, scalability, and efficiency of your network.
Cisco Express Forwarding demystifies the internal workings of Cisco routers and switches, making it easier for you to optimize performance and troubleshoot issues that arise in Cisco network environments. This book addresses common misconceptions about CEF and packet switching across various platforms, helping you to improve your troubleshooting skills for CEF- and non-CEF-related problems.
The first part of the book provides an overview of packet-switching architectures and CEF operation and advanced features. It also covers the enhanced CEF structure and general troubleshooting. The second part of the book provides case studies that focus on the common topics that have been problematic for customers and those supporting Cisco networks.
Full of practical examples and configurations, this book draws on years of experience to help you keep your Cisco networks running efficiently.
Learn the key features of packet-switching architectures Understand the basics of the CEF architecture and operation Examine the enhanced CEF structure, which improves scalability Learn how to troubleshoot in software-switching environments Understand the effect of CEF on a Cisco Catalyst 6500 Supervisor 720 Configure and troubleshoot load sharing with CEF Evaluate the effect of CEF in an MPLS VPN environment Review CEF design considerations that impact scalability
This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.
Covers: Routing and Switching
The business-centered, business-driven guide to architecting and evolving networks
The Art of Network Architecture is the first book that places business needs and capabilities at the center of the process of architecting and evolving networks. Two leading enterprise network architects help you craft solutions that are fully aligned with business strategy, smoothly accommodate change, and maximize future flexibility.
Russ White and Denise Donohue guide network designers in asking and answering the crucial questions that lead to elegant, high-value solutions. Carefully blending business and technical concerns, they show how to optimize all network interactions involving flow, time, and people.
The authors review important links between business requirements and network design, helping you capture the information you need to design effectively. They introduce today’s most useful models and frameworks, fully addressing modularity, resilience, security, and management. Next, they drill down into network structure and topology, covering virtualization, overlays, modern routing choices, and highly complex network environments.
In the final section, the authors integrate all these ideas to consider four realistic design challenges: user mobility, cloud services, Software Defined Networking (SDN), and today’s radically new data center environments.
• Understand how your choices of technologies and design paradigms will impact your business
• Customize designs to improve workflows, support BYOD, and ensure business continuity
• Use modularity, simplicity, and network management to prepare for rapid change
• Build resilience by addressing human factors and redundancy
• Design for security, hardening networks without making them brittle
• Minimize network management pain, and maximize gain
• Compare topologies and their tradeoffs
• Consider the implications of network virtualization, and walk through an MPLS-based L3VPN example
• Choose routing protocols in the context of business and IT requirements
• Maximize mobility via ILNP, LISP, Mobile IP, host routing, MANET, and/or DDNS
• Learn about the challenges of removing and changing services hosted in cloud environments
• Understand the opportunities and risks presented by SDNs
• Effectively design data center control planes and topologies
In-depth coverage of Cisco's IOS Software architecture provides crucial information to: Prevent network problems and optimize performance through more efficient design and configuration Isolate and resolve network problems more quickly and easily Apply the appropriate packet switching method, such as process switching, fast switching, optimum switching, or Cisco Express Forwarding (CEF) Understand the hardware architecture, packet buffering, and packet switching processes for shared memory routers (Cisco 1600, 2500, 3600, 4000, 4500, and 4700 series) Understand the hardware architecture, packet buffering, and packet switching processes for the Cisco 7200 series routers Understand the hardware architecture, packet buffering, and packet switching processes for the Cisco 7500 series routers Understand the hardware architecture, packet buffering, and packet switching processes for the Cisco GSR 12000 series routers Further your knowledge of how IOS Software implements Quality of Service (QoS)
Inside Cisco IOS Software Architecture offers crucial and hard-to-find information on Cisco's Internetwork Operating System (IOS) Software. IOS Software provides the means by which networking professionals configure and manage Cisco networking devices. Beyond understanding the Cisco IOS command set, comprehending what happens inside Cisco routers will help you as a network designer or engineer to perform your job more effectively. By understanding the internal operations of IOS Software, you will be able to take architectural considerations into account when designing networks and isolate problems more easily when troubleshooting networks. Inside Cisco IOS Software Architecture provides essential information on the internal aspects of IOS Software at this level, and it is an invaluable resource for better understanding the intricacies of IOS Software and how it affects your network.
Inide Cisco IOS Software Architecture begins with an overview of operating system concepts and the IOS Software infrastructure, including processes, memory management, CPU scheduling, packet buffers, and device drivers, as well as a discussion of packet switching architecture with detailed coverage of the various platform-independent switching methods, including process switching, fast switching, optimum switching, and Cisco Express Forwarding (CEF). The book then delves into the intricate details of the design and operation of platform-specific features, including the 1600, 2500, 4x00, 3600, 7200, 7500, and GSR Cisco routers. Finally, an overview of IOS Quality of Service (QoS) is provided, including descriptions of several QoS methods, such as priority queuing, custom queuing, weighted fair queuing, and modified deficit round robin.
EIGRP for IP is a concise, complete, and practical guide to understanding and working with EIGRP. It focuses on EIGRP in the context of IP, although the principles learned from this guide can be applied to the other major network protocols that EIGRP supports, including IPX and AppleTalk.
The book provides an overview of essential concepts, terminology, and EIGRP mechanisms, in addition to a look at the most important configuration options. It examines network design with regard to EIGRPis capabilities, offering concrete tips for specific design issues that arise in EIGRP networks. Also featured is an experience-based guide to EIGRP troubleshooting, with solutions to many commonly encountered problems.
Specific topics covered include:The foundations of EIGRP, including the Diffusing Update Algorithm (DUAL) A comparison of EIGRP to other interior gateway routing protocols Configuring summarization Standard and extended access distribution lists Hierarchy and redundancy in network topology Path selection Multiple EIGRP autonomous systems Isolating misbehaving routers Solving problems with neighbor relationships Stuck in Active (SIA) routes
Serving as both a complete reference and a practical handbook, EIGRP for IP is an essential resource for network professionals charged with maintaining an efficient, smoothly functioning network.
Russ White, CCIE No. 2635
Mosaddaq Turabi, CCIE No. 1864
As a final exam-preparation tool, the CCDE Quick Reference provides a concise review of all objectives on the CCDE written exam (352-001). This Digital Short Cut provides you with detailed, graphical-based information, highlighting only the key topics in cram-style format.
With this document as your guide, you will review topics on network design in the areas of routing, tunneling, quality of service, management, cost, capacity, and security. This fact-filled Quick Reference allows you to get all-important information at a glance, helping you focus your study on areas of weakness and enhancing memory retention of essential exam concepts.
Network professionals have often been told that today’s modern control planes would simplify their networks. The opposite has happened: Technologies like SDN and NFV, although immensely valuable, are exacerbating complexity instead of solving it. Navigating Network Complexity is the first comprehensive guide to managing this complexity in both deployment and day-to-day operations.
Russ White and Jeff Tantsura introduce modern complexity theory from the standpoint of the working network engineer, helping you apply it to the practical problems you face every day. Avoiding complex mathematical models, they show how to characterize network complexity, so you can understand it and control it.
The authors examine specific techniques and technologies associated with network control planes, including SDNs, fast reroute, segment routing, service chaining, and cloud computing. They reveal how each of these affects network design and complexity and help you anticipate causes of failure in highly complex systems.
Quality of Service for Rich-Media & Cloud Networks Second Edition
New best practices, technical strategies, and proven designs for maximizing QoS in complex networks
This authoritative guide to deploying, managing, and optimizing QoS with Cisco technologies has been thoroughly revamped to reflect the newest applications, best practices, hardware, software, and tools for modern networks.
This new edition focuses on complex traffic mixes with increased usage of mobile devices, wireless network access, advanced communications, and video. It reflects the growing heterogeneity of video traffic, including passive streaming video, interactive video, and immersive videoconferences. It also addresses shifting bandwidth constraints and congestion points; improved hardware, software, and tools; and emerging QoS applications in network security.
The authors first introduce QoS technologies in high-to-mid-level technical detail, including protocols, tools, and relevant standards. They examine new QoS demands and requirements, identify reasons to reevaluate current QoS designs, and present new strategic design recommendations. Next, drawing on extensive experience, they offer deep technical detail on campus wired and wireless QoS design; next-generation wiring closets; QoS design for data centers, Internet edge, WAN edge, and branches; QoS for IPsec VPNs, and more.
Tim Szigeti, CCIE No. 9794 is a Senior Technical Leader in the Cisco System Design Unit. He has specialized in QoS for the past 15 years and authored Cisco TelePresence Fundamentals.
Robert Barton, CCIE No. 6660 (R&S and Security), CCDE No. 2013::6 is a Senior Systems Engineer in the Cisco Canada Public Sector Operation. A registered Professional Engineer (P. Eng), he has 15 years of IT experience and is primarily focused on wireless and security architectures.
Christina Hattingh spent 13 years as Senior Member of Technical Staff in Unified Communications (UC) in Cisco’s Services Routing Technology Group (SRTG). There, she spoke at Cisco conferences, trained sales staff and partners, authored books, and advised customers.
Kenneth Briley, Jr., CCIE No. 9754, is a Technical Lead in the Cisco Network Operating Systems Technology Group. With more than a decade of QoS design/implementation experience, he is currently focused on converging wired and wireless QoS.
n Master a proven, step-by-step best-practice approach to successful QoS deployment
n Implement Cisco-validated designs related to new and emerging applications
n Apply best practices for classification, marking, policing, shaping, markdown, and congestion management/avoidance
n Leverage the new Cisco Application Visibility and Control feature-set to perform deep-packet inspection to recognize more than 1000 different applications
n Use Medianet architecture elements specific to QoS configuration, monitoring, and control
n Optimize QoS in rich-media campus networks using the Cisco Catalyst 3750, Catalyst 4500, and Catalyst 6500
n Design wireless networks to support voice and video using a Cisco centralized or converged access WLAN
n Achieve zero packet loss in GE/10GE/40GE/100GE data center networks
n Implement QoS virtual access data center designs with the Cisco Nexus 1000V
n Optimize QoS at the enterprise customer edge
n Achieve extraordinary levels of QoS in service provider edge networks
n Utilize new industry standards and QoS technologies, including IETF RFC 4594, IEEE 802.1Q-2005, HQF, and NBAR2
This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.
Kevin Mitnick, the world's most celebrated hacker, now devotes his life to helping businesses and governments combat data thieves, cybervandals, and other malicious computer intruders. In his bestselling The Art of Deception, Mitnick presented fictionalized case studies that illustrated how savvy computer crackers use "social engineering" to compromise even the most technically secure computer systems. Now, in his new book, Mitnick goes one step further, offering hair-raising stories of real-life computer break-ins-and showing how the victims could have prevented them. Mitnick's reputation within the hacker community gave him unique credibility with the perpetrators of these crimes, who freely shared their stories with him-and whose exploits Mitnick now reveals in detail for the first time, including: A group of friends who won nearly a million dollars in Las Vegas by reverse-engineering slot machines Two teenagers who were persuaded by terrorists to hack into the Lockheed Martin computer systems Two convicts who joined forces to become hackers inside a Texas prison A "Robin Hood" hacker who penetrated the computer systems of many prominent companies-andthen told them how he gained access With riveting "you are there" descriptions of real computer break-ins, indispensable tips on countermeasures security professionals need to implement now, and Mitnick's own acerbic commentary on the crimes he describes, this book is sure to reach a wide audience-and attract the attention of both law enforcement agencies and the media.
Learn practical guidelines for designing and deploying a scalable BGP routing architecture
Up-to-date coverage of BGP features like performance tuning, multiprotocol BGP, MPLS VPN, and multicast BGP In-depth coverage of advanced BGP topics to help design a complex BGP routing architecture Practical design tips that have been proven in the field Extensive configuration examples and case studies
BGP Design and Implementation focuses on real-world problems and provides not only design solutions, but also the background on why they are appropriate and a practical overview of how they apply into a top-down design. The BGP protocol is being used in both service provider and enterprise networks. The design goals of these two groups are different, leading to different architectures being used in each environment. The title breaks out the separate goals, and resulting solutions for each group to assist the reader in further understanding different solution strategies.
This book starts by identifying key features and functionality in BGP. It then delves into the topics of performance tuning, routing policy development, and architectural scalability. It progresses by examining the challenges for both the service provider and enterprise customers, and provides practical guidelines and a design framework for each. BGP Design and Implementation finishes up by closely looking at the more recent extensions to BGP through Multi-Protocol BGP for MPLS-VPN, IP Multicast, IPv6, and CLNS.
Each chapter is generally organized into the following sections: Introduction, Design and Implementation Guidelines, Case Studies, and Summary.
Kevin Mitnick's exploits as a cyber-desperado and fugitive form one of the most exhaustive FBI manhunts in history and have spawned dozens of articles, books, films, and documentaries. Since his release from federal prison, in 1998, Mitnick has turned his life around and established himself as one of the most sought-after computer security experts worldwide. Now, in The Art of Deception, the world's most notorious hacker gives new meaning to the old adage, "It takes a thief to catch a thief."
Focusing on the human factors involved with information security, Mitnick explains why all the firewalls and encryption protocols in the world will never be enough to stop a savvy grifter intent on rifling a corporate database or an irate employee determined to crash a system. With the help of many fascinating true stories of successful attacks on business and government, he illustrates just how susceptible even the most locked-down information systems are to a slick con artist impersonating an IRS agent. Narrating from the points of view of both the attacker and the victims, he explains why each attack was so successful and how it could have been prevented in an engaging and highly readable style reminiscent of a true-crime novel. And, perhaps most importantly, Mitnick offers advice for preventing these types of social engineering hacks through security protocols, training programs, and manuals that address the human element of security.
Definitive MPLS Network Designs provides examples of how to combine key technologies at the heart of IP/MPLS networks. Techniques are presented through a set of comprehensive design studies. Each design study is based on characteristics and objectives common to a given profile of network operators having deployed MPLS and discusses all the corresponding design aspects.
The book starts with a technology refresher for each of the technologies involved in the design studies. Next, a series of design studies is presented, each based on a specific hypothetical network representative of service provider and enterprise networks running MPLS. Each design study chapter delivers four elements. They open with a description of the network environment, including the set of supported services, the network topology, the POP structure, the transmission facilities, the basic IP routing design, and possible constraints. Then the chapters present design objectives, such as optimizing bandwidth usage. Following these are details of all aspects of the network design, covering VPN, QoS, TE, network recovery, and—where applicable—multicast, IPv6, and pseudowire. The chapters conclude with a summary of the lessons that can be drawn from the design study so that all types of service providers and large enterprise MPLS architects can adapt aspects of the design solution to their unique network environment and objectives.
Although network architects have many resources for seeking information on the concepts and protocols involved with MPLS, there is no single resource that illustrates how to design a network that optimizes their benefits for a specific operating environment. The variety of network environments and requirements makes it difficult to provide a one-size-fits-all design recommendation. Definitive MPLS Network Designs fills this void.
“This book comes as a boon to professionals who want to understand the power of MPLS and make full use of it.”
-Parantap Lahiri, Manager, IP Network Infrastructure Engineering, MCI
Includes a FREE 45-Day Online Edition
This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.
Quality of service (QoS) plays a key role in the implementation of IP and MPLS networks today. However, QoS can be one of the most complex aspects of networking. The industry efforts to achieve convergence have generated a need for increased levels of traffic differentiation. Today’s networks need to meet an array of QoS requirements to support distinct applications (such as voice, video, and data) and multiple network services (such as IP, Ethernet, and ATM) on a single converged, multiservice network. QoS has therefore has become an integral part of network design, implementation, and operation.
QoS for IP/MPLS Networks is a practical guide that will help you facilitate the design, deployment, and operation of QoS using Cisco® IOS® Software and Cisco IOS XR Software. The book provides a thorough explanation of the technology behind MPLS QoS and related technologies, including the different design options you can use to build an MPLS network with strict performance requirements. This book discusses MPLS Traffic Engineering (MPLS TE) as a tool to complement MPLS QoS and enhance the performance characteristics of the network. You’ll learn technology, configuration, and operational details, including the essentials facts about the behavior and configuration of the rich MPLS QoS and related MPLS TE functionality. To get the most out of this book, you should have a basic understanding of both IP and MPLS, including the basics of IP addressing and routing and the basics of MPLS forwarding.
The purpose of Top-Down Network Design, Third Edition, is to help you design networks that meet a customer’s business and technical goals. Whether your customer is another department within your own company or an external client, this book provides you with tested processes and tools to help you understand traffic flow, protocol behavior, and internetworking technologies. After completing this book, you will be equipped to design enterprise networks that meet a customer’s requirements for functionality, capacity, performance, availability, scalability, affordability, security, and manageability.
This book is for you if you are an internetworking professional responsible for designing and maintaining medium- to large-sized enterprise networks. If you are a network engineer, architect, or technician who has a working knowledge of network protocols and technologies, this book will provide you with practical advice on applying your knowledge to internetwork design.
This book also includes useful information for consultants, systems engineers, and sales engineers who design corporate networks for clients. In the fast-paced presales environment of many systems engineers, it often is difficult to slow down and insist on a top-down, structured systems analysis approach. Wherever possible, this book includes shortcuts and assumptions that can be made to speed up the network design process.
Finally, this book is useful for undergraduate and graduate students in computer science and information technology disciplines. Students who have taken one or two courses in networking theory will find Top-Down Network Design, Third Edition, an approachable introduction to the engineering and business issues related to developing real-world networks that solve typical business problems.
Changes for the Third Edition
Networks have changed in many ways since the second edition was published. Many legacy technologies have disappeared and are no longer covered in the book. In addition, modern networks have become multifaceted, providing support for numerous bandwidth-hungry applications and a variety of devices, ranging from smart phones to tablet PCs to high-end servers. Modern users expect the network to be available all the time, from any device, and to let them securely collaborate with coworkers, friends, and family. Networks today support voice, video, high-definition TV, desktop sharing, virtual meetings, online training, virtual reality, and applications that we can’t even imagine that brilliant college students are busily creating in their dorm rooms.
As applications rapidly change and put more demand on networks, the need to teach a systematic approach to network design is even more important than ever. With that need in mind, the third edition has been retooled to make it an ideal textbook for college students. The third edition features review questions and design scenarios at the end of each chapter to help students learn top-down network design.
To address new demands on modern networks, the third edition of Top-Down Network Design also has updated material on the following topics:
¿ Network redundancy
¿ Modularity in network designs
¿ The Cisco SAFE security reference architecture
¿ The Rapid Spanning Tree Protocol (RSTP)
¿ Internet Protocol version 6 (IPv6)
¿ Ethernet scalability options, including 10-Gbps Ethernet and Metro Ethernet
¿ Network design and management tools
As the Android operating system continues to increase its share of the smartphone market, smartphone hacking remains a growing threat. Written by experts who rank among the world's foremost Android security researchers, this book presents vulnerability discovery, analysis, and exploitation tools for the good guys. Following a detailed explanation of how the Android OS works and its overall security architecture, the authors examine how vulnerabilities can be discovered and exploits developed for various system components, preparing you to defend against them.
If you are a mobile device administrator, security researcher, Android app developer, or consultant responsible for evaluating Android security, you will find this guide is essential to your toolbox.A crack team of leading Android security researchers explain Android security risks, security design and architecture, rooting, fuzz testing, and vulnerability analysis Covers Android application building blocks and security as well as debugging and auditing Android apps Prepares mobile device administrators, security researchers, Android app developers, and security consultants to defend Android systems against attack Android Hacker's Handbook is the first comprehensive resource for IT professionals charged with smartphone security.
People around the world have access to enjoy YouTube with the exception of a few countries including China. There are three main components that constitute the YouTube ecosystem: the users who are the members of the YouTube communities and the consumers of YouTube videos; the creators who produce videos; and the advertisers who make the money flow within the YouTube ecosystem.
YouTube is open to anybody who wants to create and upload videos, and all users are equally eligible to become creators. YouTube is operating the YouTube partnership program to encourage users to become creators of videos.
This is YouTube reference book proofread by the person who is currently in charge of the YouTube partnership program.
This book explains everything that you need to know about YouTube if you want to become a creator and manage your own channel; how to sign up to become a YouTuber; how to upload videos; how to manage your channel; how to monetize YouTube videos; and the knowhow to generate more profits. All lessons about basic YouTube features are accompanied by “Follow These Simple Steps,” where you are encouraged to practice what you have learned.
The book also includes a “Special Page” section, where some of the popular YouTube channels are introduced by different categories, in addition to ways on how to use YouTube to promote businesses and to protect your copyrights.
This complete summary of the ideas from Dale Carnegie's book "How to Win Friends and Influence People" shows that no matter your occupation, goals, ambitions or your position in a company, dealing with people is your biggest challenge. Therefore, if you learn how to do so effectively you will reap the rewards in terms of profitability, productivity and morale. This summary highlights how to work with rather than against people, and how to be successful in your personal and professional life.
Added-value of this summary:
• Save time
• Understand the key concepts
• Improve your social and communication skills
To learn more, read "How to Win Friends and Influence People" and discover how to motivate people and how to communicate efficiently.
Networking entails the connection of two or more computers, allowing them to share resources and exchange data. This is essential in the workplace, and has become highly popular in home settings as more and more people are connecting their home computers. Whether you're a network administrator or someone who wants to create a home-based network, understanding how to build your network effectively is critical to your success.Learn networking basics, including what a network is and how to build one Understand how to effectively carry out network administration while maintaining high levels of security Explore different types of networking, including wireless and mobile Leverage the most up to date information that covers the latest networking trends and practices
Networking All-In-One For Dummies, 6th Edition is the best-selling resource you need to catch up on the latest networking tools and trends.
Mastering VMware vSphere 6 is the fully updated edition of the bestselling guide to VMware's virtualization solution. With comprehensive coverage of this industry-leading toolset, this book acts as an informative guide and valuable reference. Step-by-step instruction walks you through installation, configuration, operation, security processes, and much more as you conquer the management and automation of your virtual environment. Written by certified VMware vExperts, this indispensable guide provides hands-on instruction and detailed conceptual explanations, anchored by practical applications and real-world examples.
This book is the ultimate guide to vSphere, helping administrators master their virtual environment. Learn to: Install, configure, and manage the vCenter Server components Leverage the Support Tools to provide maintenance and updates Create and configure virtual networks, storage devices, and virtual machines Implement the latest features to ensure compatibility and flexibility Manage resource allocation and utilization to meet application needs Monitor infrastructure performance and availability Automate and orchestrate routine administrative tasks
Mastering VMware vSphere 6 is what you need to stay up-to-date on VMware's industry-leading software for the virtualized datacenter.
Internationally recognized computer security expert Bruce Schneier offers a practical, straightforward guide to achieving security throughout computer networks. Schneier uses his extensive field experience with his own clients to dispel the myths that often mislead IT managers as they try to build secure systems. This practical guide provides readers with a better understanding of why protecting information is harder in the digital world, what they need to know to protect digital information, how to assess business and corporate security needs, and much more.
* Walks the reader through the real choices they have now for digital security and how to pick and choose the right one to meet their business needs
* Explains what cryptography can and can't do in achieving digital security
That's what this cookbook is for. Fortunately, most router configuration tasks can be broken down into several more or less independent steps: you configure an interface, you configure a routing protocol, you set up backup links, you implement packet filters and other access control mechanisms. What you really need is a set of recipes that show you how to perform the most common tasks, so you can quickly come up with a good configuration for your site. And you need to know that these solutions work: you don't want to find yourself implementing a backup link at 2 A.M. because your main link is down and the backup link you set up when you installed the router wasn't quite right.
Thoroughly revised and expanded, Cisco IOS Cookbook, 2nd Edition, adds sections on MPLS, Security, IPv6, and IP Mobility, and presents solutions to the most common configuration problems, including:Configuring interfaces of many types, from serial to ATM and Frame RelayConfiguring all of the common IP routing protocols (RIP, EIGRP, OSPF, and BGP)Configuring authenticationConfiguring other services, including DHCP and NTPSetting up backup links, and using HSRP to configure backup routersManaging the router, including SNMP and other solutionsUsing access lists to control the traffic through the router
If you work with Cisco routers, you need a book like this to help you solve problems quickly and effectively. Even if you're experienced, the solutions and extensive explanations will give you new ideas and insights into router configuration. And if you're not experienced--if you've just been given responsibility for managing a network with Cisco routers--this book could be a job-saver.
Network administrators now have a single, convenient place to turn for all the information they need. Networking All-in-One For Dummies, 4th Edition is like ten books in one, covering such topics as networking basics, network security, setting up TCP/IP and connecting to the Internet, handling mobile devices, and much more. This valuable book covers all the newest updates and trends, including Windows 7 and Windows Server 2008 R2.A single-source reference for network administrators Includes ten minibooks: Networking Basics; Building a Network; Network Administration and Security; TCP/IP and the Internet; Wireless Networking; Telecom, Convergence, and Mobile Devices; Windows Server 2008 Reference; Using Other Windows Servers; Linux Networking Reference; and Appendices Explores the latest technologies in broadband, storage, and back-up Delves into new trends in networking and includes the latest Windows Server 2008 R2 and Windows 7 updates
System administrators will want to keep this practical all-in-one guide within reach.
If you work with Cisco routers, it's likely that you deal with Cisco's IOS software--an extremely powerful and complex operating system, with an equally complex configuration language. With a cryptic command-line interface and thousands of commands--some of which mean different things in different situations--it doesn't have a reputation for being user-friendly.
Fortunately, there's help. This second edition of Cisco IOS in a Nutshell consolidates the most important commands and features of IOS into a single, well-organized volume that you'll find refreshingly user-friendly.
This handy, two-part reference covers IOS configuration for the TCP/IP protocol family. The first section includes chapters on the user interface, configuring lines and interfaces, access lists, routing protocols, and dial-on-demand routing and security. A brief, example-filled tutorial shows you how to accomplish common tasks.
The second part is a classic O'Reilly quick reference to all the commands for working with TCP/IP and the lower-level protocols on which it relies. Brief descriptions and lists of options help you zero in on the commands you for the task at hand. Updated to cover Cisco IOS Software Major Release 12.3, this second edition includes lots of examples of the most common configuration steps for the routers themselves. It's a timely guide that any network administrator will come to rely on.
TCP/IP is a hot topic, because it's the glue that holds the Internet and the Web together, and network administrators need to stay on top of the latest developments. TCP/IP For Dummies, 6th Edition, is both an introduction to the basics for beginners as well as the perfect go-to resource for TCP/IP veterans.
The book includes the latest on Web protocols and new hardware, plus very timely information on how TCP/IP secures connectivity for blogging, vlogging, photoblogging, and social networking. Step-by-step instructions show you how to install and set up TCP/IP on clients and servers; build security with encryption, authentication, digital certificates, and signatures; handle new voice and mobile technologies, and much more.Transmission Control Protocol / Internet Protocol (TCP/IP) is the de facto standard transmission medium worldwide for computer-to-computer communications; intranets, private internets, and the Internet are all built on TCP/IP The book shows you how to install and configure TCP/IP and its applications on clients and servers; explains intranets, extranets, and virtual private networks (VPNs); provides step-by-step information on building and enforcing security; and covers all the newest protocols You'll learn how to use encryption, authentication, digital certificates, and signatures to set up a secure Internet credit card transaction
Find practical security tips, a Quick Start Security Guide, and still more in this practical guide.
Refreshed technical content has been added to the official (ISC)2 CISSP CBK to reflect the most current topics in the information security industry today. Some topics have been expanded (e.g., asset security, security assessment and testing), while other topics have been realigned under different domains. The result is an exam that most accurately reflects the technical and managerial competence required from an experienced information security professional to effectively design, engineer, implement and manage an organization’s information security program within an ever-changing security landscape.
The domain names have been updated as follows:
CISSP Domains, Effective April 15, 2015Security and Risk Management (Security, Risk, Compliance, Law, Regulations, Business Continuity) Asset Security (Protecting Security of Assets) Security Engineering (Engineering and Management of Security) Communications and Network Security (Designing and Protecting Network Security) Identity and Access Management (Controlling Access and Managing Identity) Security Assessment and Testing (Designing, Performing, and Analyzing Security Testing) Security Operations (Foundational Concepts, Investigations, Incident Management, Disaster Recovery) Software Development Security (Understanding, Applying, and Enforcing Software Security)
Some candidates may be wondering how these updates affect training materials for the CISSP credential. As part of the organization’s comprehensive education strategy and certifying body best practices, (ISC)2 training materials do not teach directly to its credential examinations. Rather, (ISC)2 Education is focused on teaching the core competencies relevant to the roles and responsibilities of today’s practicing information security professional. It is designed to refresh and enhance the knowledge of experienced industry professionals.
Author Lorin Hochstein shows you how to write playbooks (Ansible’s configuration management scripts), manage remote servers, and explore the tool’s real power: built-in declarative modules. You’ll discover that Ansible has the functionality you need and the simplicity you desire.Understand how Ansible differs from other configuration management systemsUse the YAML file format to write your own playbooksLearn Ansible’s support for variables and factsWork with a complete example to deploy a non-trivial applicationUse roles to simplify and reuse playbooksMake playbooks run faster with ssh multiplexing, pipelining, and parallelismDeploy applications to Amazon EC2 and other cloud platformsUse Ansible to create Docker images and deploy Docker containers
Hacking VoIP takes a dual approach to VoIP security, explaining its many security holes to hackers and administrators. If you're serious about security, and you either use or administer VoIP, you should know where VoIP's biggest weaknesses lie and how to shore up your security. And if your intellectual curiosity is leading you to explore the boundaries of VoIP, Hacking VoIP is your map and guidebook.
Hacking VoIP will introduce you to every aspect of VoIP security, both in home and enterprise implementations. You'll learn about popular security assessment tools, the inherent vulnerabilities of common hardware and software packages, and how to:
* Identify and defend against VoIP security attacks such as eavesdropping, audio injection, caller ID spoofing, and VoIP phishing
* Audit VoIP network security
* Assess the security of enterprise-level VoIP networks such as Cisco, Avaya, and Asterisk, and home VoIP solutions like Yahoo! and Vonage
* Use common VoIP protocols like H.323, SIP, and RTP as well as unique protocols like IAX
* Identify the many vulnerabilities in any VoIP network
Whether you're setting up and defending your VoIP network against attacks or just having sick fun testing the limits of VoIP networks, Hacking VoIP is your go-to source for every aspect of VoIP security and defense.
This book cuts through the fog of jargon and mystery that surrounds Android apps development, and gives you simple, step-by-step instructions to get you started.Teaches Android application development in language anyone can understand, giving you the best possible start in Android developmentProvides simple, step-by-step examples that make learning easy, allowing you to pick up the concepts without fussOffers clear code descriptions and layout so that you can get your apps running as soon as possible
This book covers both Android 4.4 (KitKat) and Android L, but is also backwards compatible to cover the previous Android releases since Android 1.5.
The answer is time management. And not just any time management theory--you want Time Management for System Administrators, to be exact. With keen insights into the challenges you face as a sys admin, bestselling author Thomas Limoncelli has put together a collection of tips and techniques that will help you cultivate the time management skills you need to flourish as a system administrator.
Time Management for System Administrators understands that an Sys Admin often has competing goals: the concurrent responsibilities of working on large projects and taking care of a user's needs. That's why it focuses on strategies that help you work through daily tasks, yet still allow you to handle critical situations that inevitably arise.
Among other skills, you'll learn how to:Manage interruptionsEliminate timewastersKeep an effective calendarDevelop routines for things that occur regularlyUse your brain only for what you're currently working onPrioritize based on customer expectationsDocument and automate processes for faster execution
What's more, the book doesn't confine itself to just the work environment, either. It also offers tips on how to apply these time management tools to your social life. It's the first step to a more productive, happier you.
This new edition of the unparalleled bestseller serves as a full training course all in one and as the world's largest data storage company, EMC is the ideal author for such a critical resource. They cover the components of a storage system and the different storage system models while also offering essential new material that explores the advances in existing technologies and the emergence of the "Cloud" as well as updates and vital information on new technologies.Features a separate section on emerging area of cloud computing Covers new technologies such as: data de-duplication, unified storage, continuous data protection technology, virtual provisioning, FCoE, flash drives, storage tiering, big data, and more Details storage models such as Network Attached Storage (NAS), Storage Area Network (SAN), Object Based Storage along with virtualization at various infrastructure components Explores Business Continuity and Security in physical and virtualized environment Includes an enhanced Appendix for additional information
This authoritative guide is essential for getting up to speed on the newest advances in information storage and management.
Mobile, Wireless, and Sensor Networks is divided into three distinct parts:
* Recent Advances in Wireless LANs and Multihop Wireless Networks
* Recent Advances and Research in Sensor Networks
* Middleware, Applications, and New Paradigms
In developing this collected work, the editors have emphasized two objectives:
* Helping readers bridge the gap and understand the relationship between practice and theory
* Helping readers bridge the gap and understand the relationships and common links among different types of wireless networks
Chapters are written by an international team of researchers and practitioners who are experts and trendsetters in their fields. Contributions represent both industry and academia, including IBM, National University of Singapore, Panasonic, Intel, and Seoul National University.
Students, researchers, and practitioners who need to stay abreast of new research and take advantage of the latest techniques in wireless communications will find this publication indispensable. Mobile, Wireless, and Sensor Networks provides a clear sense of where the industry is now, what challenges it faces, and where it is heading.
Every one of our systems is under attack from multiple vectors - our defenses must be ready all the time and our alert systems must detect the threats every time. This book provides concrete examples and real-world guidance on how to identify and defend a network against malicious attacks. It considers relevant technical and factual information from an insider's point of view, as well as the ethics, laws and consequences of cyber war and how computer criminal law may change as a result. Starting with a definition of cyber warfare, the book’s 15 chapters discuss the following topics: the cyberspace battlefield; cyber doctrine; cyber warriors; logical, physical, and psychological weapons; computer network exploitation; computer network attack and defense; non-state actors in computer network operations; legal system impacts; ethics in cyber warfare; cyberspace challenges; and the future of cyber war.
This book is a valuable resource to those involved in cyber warfare activities, including policymakers, penetration testers, security professionals, network and systems administrators, and college instructors. The information provided on cyber tactics and attacks can also be used to assist in developing improved and more efficient procedures and technical defenses. Managers will find the text useful in improving the overall risk management strategies for their organizations.Provides concrete examples and real-world guidance on how to identify and defend your network against malicious attacksDives deeply into relevant technical and factual information from an insider's point of viewDetails the ethics, laws and consequences of cyber war and how computer criminal law may change as a result
Both beginning network administrators and home users have made previous editions of this book a top seller. Now fully updated, this edition shows you step by step how to set up and maintain a network and covers Windows 8 and Windows Server 2008 R2 SP1. Author Doug Lowe also includes updated coverage of broadband technologies as well as storage and back-up procedures, all in his easy-to-follow style. You'll learn to build a wired or wireless network, secure and optimize it, safely connect to the Internet, troubleshoot problems, and much more.A perennial bestseller, this guide to networking has been fully revised to cover Windows 8, Windows Server 2008 R2 SP1, new broadband technologies, and updated storage and backup procedures Provides introductory-level networking fundamentals for those inexperienced in network technology Covers networking with all major operating systems Shows how to build, secure, and optimize a network, safely connect to the Internet, troubleshoot problems, and more
Networking For Dummies, 10th Edition walks you through the process of setting up and maintaining a network, at home or in the office.
It offers a thorough explanation of how computer networks function, how they can be involved in crimes, and how they can be used as a source of evidence. In particular, it addresses the abuse of computer networks as well as privacy and security issues on computer networks.
This updated edition is organized into five parts. Part 1 is about digital forensics and covers topics ranging from the use of digital evidence in the courtroom to cybercrime law. Part 2 explores topics such as how digital investigations are conducted, handling a digital crime scene, and investigative reconstruction with digital evidence. Part 3 deals with apprehending offenders, whereas Part 4 focuses on the use of computers in digital investigation. The book concludes with Part 5, which includes the application of forensic science to networks.
New to this edition are updated information on dedicated to networked Windows, Unix, and Macintosh computers, as well as Personal Digital Assistants; coverage of developments in related technology and tools; updated language for search warrant and coverage of legal developments in the US impacting computer forensics; and discussion of legislation from other countries to provide international scope. There are detailed case examples that demonstrate key concepts and give students a practical/applied understanding of the topics, along with ancillary materials that include an Instructor's Manual and PowerPoint slides.
This book will prove valuable to computer forensic students and professionals, lawyers, law enforcement, and government agencies (IRS, FBI, CIA, CCIPS, etc.).Named The 2011 Best Digital Forensics Book by InfoSec ReviewsProvides a thorough explanation of how computers & networks function, how they can be involved in crimes, and how they can be used as evidence Features coverage of the abuse of computer networks and privacy and security issues on computer networks
With this book, you'll learn skills through a variety of genuine scenarios, from fixing a malfunctioning office network to planning a network for a high-technology haunted house. You'll learn exactly what you need to know, rather than a laundry list of acronyms and diagrams. This book will help you:
Master the functionality, protocols, and packets that make up real-world networkingLearn networking concepts through examples in the fieldTackle tasks such as planning and diagramming networks, running cables, and configuring network devices such as routers and switchesMonitor networks for performance and problems, and learn troubleshooting techniquesPractice what you've learned with nearly one hundred exercises, questions, sample problems, and projects
Head First's popular format is proven to stimulate learning and retention by engaging you with images, puzzles, stories, and more. Whether you're a network professional with a CCNA/CCNP or a student taking your first college networking course, Head First Networking will help you become a network guru.
Ideal for Linux administrators, developers, and power users, this updated edition shows you how to write a basic dialplan step-by-step, and brings you up to speed on the features in Asterisk 11, the latest long-term support release from Digium. You’ll quickly gain working knowledge to build a simple yet inclusive system.Integrate Asterisk with analog, VoIP, and digital telephony systemsBuild an interactive dialplan, using best practices for more advanced featuresDelve into voicemail options, such as storing messages in a databaseConnect to external services including Google Talk, XMPP, and calendarsIncorporate Asterisk features and functions into a relational database to facilitate information sharingLearn how to use Asterisk’s security, call routing, and faxing featuresMonitor and control your system with the Asterisk Manager Interface (AMI)Plan for expansion by learning tools for building distributed systems
Yes, you can mine through the 5,000 pages of documentation or take a two-thousand-dollar training course, but JUNOS's interprocess sophistication can be baffling unless you know the shortcuts and tricks, as well as those rays of illuminating comprehension that can come only from those who live with it. JUNOS Cookbook is the first comprehensive book about JUNOS software and it provides over 200 time-saving step-by-step techniques including discussions about the processes and alternative ways to perform the same task. It's been tested and tech-reviewed by field engineers who know how to take JUNOS out for a spin and it's applicable to the entire line of M-, T-, and J-series routers. JUNOS Cookbook will not only pay for itself the first few times you use it, it will make your network easier to manage and update.
"Aviva Garrett has done a tremendous job of distilling the features of JUNOS software in a form that will be useful for a wide audience-students, field engineers, network architects, and other networking professionals alike will benefit from this book. For many people, this is the only book on JUNOS they will need."Pradeep Sindhu, CTO and Founder, Juniper Networks
"This cookbook is superb. Aviva Garrett has masterfully assembled a complete set of practical real-world examples with step-by-step instructions. Security, management, routing: it's all here!"Stephen Gill, Research Fellow, Team Cymru
"A technical time-saver for any NOC or SOC working with JUNOS. It's clear, concise, and informative recipes are are an invaluable resource. "Scott A. McIntyre, Security Officer, XS4ALL Internet B.V
Unlike packet sniffers that require you to reproduce network problems in order to analyze them, flow analysis lets you turn back time as you analyze your network. You'll learn how to use open source software to build a flow-based network awareness system and how to use network analysis and auditing to address problems and improve network reliability. You'll also learn how to use a flow analysis system; collect flow records; view, filter, and report flows; present flow records graphically; and use flow records to proactively improve your network. Network Flow Analysis will show you how to:
* Identify network, server, router, and firewall problems before they become critical
* Find defective and misconfigured software
* Quickly find virus-spewing machines, even if they’re on a different continent
* Determine whether your problem stems from the network or a server
* Automatically graph the most useful data
And much more. Stop asking your users to reproduce problems. Network Flow Analysis gives you the tools and real-world examples you need to effectively analyze your network flow data. Now you can determine what the network problem is long before your customers report it, and you can make that silly phone stop ringing.
* Master Cisco CCNA Data Center DCICN 640-911 exam topics
* Assess your knowledge with chapter-opening quizzes
* Review key concepts with exam preparation tasks
This is the eBook edition of the CCNA Data Center DCICN 640-911 Official Cert Guide. This eBook does not include the companion CD-ROM with practice exam that comes with the print edition.
CCNA Data Center DCICN 640-911 Official Cert Guide from Cisco Press enables you to succeed on the exam the first time and is the only self-study resource approved by Cisco. Expert instructors and engineers Wendell Odom and Chad Hintz share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.
This complete, official study package includes
* A test-preparation routine proven to help you pass the exam
* "Do I Know This Already?" quizzes, which enable you to decide how much time you need to spend on each section
* Chapter-ending and part-ending exercises, which help you drill on key concepts you must know thoroughly
* A final preparation chapter that guides you through tools and resources to help you craft your review and test-taking strategies
* A Nexus lab guide appendix, with advice for building hands-on Nexus labs
* Study plan suggestions and templates to help you organize and optimize your study time
Well regarded for its level of detail, study plans, assessment features, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that ensure your exam success.
CCNA Data Center DCICN 640-911 Official Cert Guide is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com.
The official study guide helps you master topics on the CCNA Data Center DCICN 640-911 exam, including
* Networking fundamentals
* Installing, operating, and configuring Nexus switches
* VLANs and trunking concepts and configuration
* Spanning Tree Protocol (STP) concepts and configuration
* IP addressing and subnetting
* IPv6 fundamentals
* Cisco Nexus IPv4 routing configuration and routing protocol implementation
* IPv4 access control lists (ACL) on Nexus switches
Topics include:An in-depth view of routers and routingSwitching, using Cisco Catalyst and Nexus switches as examplesSOHO VoIP and SOHO wireless access point design and configurationIntroduction to IPv6 with configuration examplesTelecom technologies in the data-networking world, including T1, DS3, frame relay, and MPLSSecurity, firewall theory, and configuration, as well as ACL and authenticationQuality of Service (QoS), with an emphasis on low-latency queuing (LLQ)IP address allocation, Network Time Protocol (NTP), and device failures
The latest version of System Center Configuration Manager (SCCM) is a dramatic update of its predecessor Configuration Manager 2007, and this book offers intermediate-to-advanced coverage of how the new SCCM boasts a simplified hierarchy, role-based security, a new console, flexible application deployment, and mobile management. You'll explore planning and installation, migrating from SCCM 2007, deploying software and operating systems, security, monitoring and troubleshooting, and automating and customizing SCCM 2012 with scripts.Features an unparalleled team of authors, two of whom are insiders at Microsoft and have worked with SCCM since nearly its inception Provides in-depth coverage and offers a hands-on approach to learning all there is to know about SCCM Explores why SCCM 2012 is the most significant update in its 16-year history
Packed with real-world scenarios to show you how to use SCCM in various contexts, Mastering System Center Configuration Manager 2012 covers all aspects of this powerful and complete network software deployment tool.
The authors have based JUNOS Enterprise Switching on their own Juniper training practices and programs, as well as the configuration, maintenance, and troubleshooting guidelines they created for their bestselling companion book, JUNOS Enterprise Routing. Using a mix of test cases, case studies, use cases, and tangential answers to real-world problems, this book covers:
Enterprise switching and virtual LANs (VLANs)The Spanning tree protocol and why it's neededInter-VLAN routing, including route tables and preferencesRouting policy and firewall filtersSwitching security, such as DHCP snoopingTelephony integration, including VLAN voice
Part of the Juniper Networks Technical Library, JUNOS Enterprise Switching provides all-inclusive coverage of the Juniper Networks EX product platform, including architecture and packet flow, management options, user interface options, and complete details on JUNOS switch deployment.
Providing network administrators with a reliable network operating system, JUNOS software is an award-winning network operating system that focuses on security and the avoidance of down time. This easy-to-understand book starts with the basics of JUNOS and walks you through its features so that you can quickly learn how to set up, operate, and add key services.
Since the various JUNOS features are constantly being updated to provide your network with the best security possible, this new edition shares must-know information, helpful advice, handy tips, and essential cautions for working with JUNOS. Plus, you'll find out how to set up a routing protocol that automates configuration of routing tables for greater efficiency and how you can set up individual or group user accounts locally on the route, or on remote centralized authentication servers.Starts with the basics and introduces you to JUNOS Explains how to connect, manage, and troubleshoot routers and other Juniper appliances Offers tips for making your network more efficient and reveals essential cautions Walks you through setting up, operating, and adding key services Details ways to configure JUNOS default security features as well as restricted physical access to protect routers Breaks down advanced concepts into easy-to-understand segments so you can build your knowledge gradually
This new edition gets you started using the sophisticated features and techniques of JUNOS today.
The Network Security Test Lab is a hands-on, step-by-step guide to ultimate IT security implementation. Covering the full complement of malware, viruses, and other attack technologies, this essential guide walks you through the security assessment and penetration testing process, and provides the set-up guidance you need to build your own security-testing lab. You'll look inside the actual attacks to decode their methods, and learn how to run attacks in an isolated sandbox to better understand how attackers target systems, and how to build the defenses that stop them. You'll be introduced to tools like Wireshark, Networkminer, Nmap, Metasploit, and more as you discover techniques for defending against network attacks, social networking bugs, malware, and the most prevalent malicious traffic. You also get access to open source tools, demo software, and a bootable version of Linux to facilitate hands-on learning and help you implement your new skills.
Security technology continues to evolve, and yet not a week goes by without news of a new security breach or a new exploit being released. The Network Security Test Lab is the ultimate guide when you are on the front lines of defense, providing the most up-to-date methods of thwarting would-be attackers.Get acquainted with your hardware, gear, and test platform Learn how attackers penetrate existing security systems Detect malicious activity and build effective defenses Investigate and analyze attacks to inform defense strategy
The Network Security Test Lab is your complete, essential guide.
The book’s simulation approach provides a virtual environment for a wide range of desirable features, such as modeling a network based on specified criteria and analyzing its performance under different scenarios. The experiments include the basics of using OPNET IT Guru Academic Edition; operation of the Ethernet network; partitioning of a physical network into separate logical networks using virtual local area networks (VLANs); and the basics of network design. Also covered are congestion control algorithms implemented by the Transmission Control Protocol (TCP); the effects of various queuing disciplines on packet delivery and delay for different services; and the role of firewalls and virtual private networks (VPNs) in providing security to shared public networks. Each experiment in this updated edition is accompanied by review questions, a lab report, and exercises.
Networking designers and professionals as well as graduate students will find this manual extremely helpful.Updated and expanded by an instructor who has used OPNET simulation tools in his classroom for numerous demonstrations and real-world scenarios.Software download based on an award-winning product made by OPNET Technologies, Inc., whose software is used by thousands of commercial and government organizations worldwide, and by over 500 universities.Useful experimentation for professionals in the workplace who are interested in learning and demonstrating the capability of evaluating different commercial networking products, i.e., Cisco routers.Covers the core networking topologies and includes assignments on Switched LANs, Network Design, CSMA, RIP, TCP, Queuing Disciplines, Web Caching, etc.
iOS is Apple's mobile operating system for the iPhone and iPad. With the introduction of iOS5, many security issues have come to light. This book explains and discusses them all. The award-winning author team, experts in Mac and iOS security, examines the vulnerabilities and the internals of iOS to show how attacks can be mitigated. The book explains how the operating system works, its overall security architecture, and the security risks associated with it, as well as exploits, rootkits, and other payloads developed for it.Covers iOS security architecture, vulnerability hunting, exploit writing, and how iOS jailbreaks work Explores iOS enterprise and encryption, code signing and memory protection, sandboxing, iPhone fuzzing, exploitation, ROP payloads, and baseband attacks Also examines kernel debugging and exploitation Companion website includes source code and tools to facilitate your efforts
iOS Hacker's Handbook arms you with the tools needed to identify, understand, and foil iOS attacks.
Linux Firewalls discusses the technical details of the iptables firewall and the Netfilter framework that are built into the Linux kernel, and it explains how they provide strong filtering, Network Address Translation (NAT), state tracking, and application layer inspection capabilities that rival many commercial tools. You'll learn how to deploy iptables as an IDS with psad and fwsnort and how to build a strong, passive authentication layer around iptables with fwknop.
Concrete examples illustrate concepts such as firewall log analysis and policies, passive network authentication and authorization, exploit packet traces, Snort ruleset emulation, and more with coverage of these topics:
* Passive network authentication and OS fingerprinting
* iptables log analysis and policies
* Application layer attack detection with the iptables string match extension
* Building an iptables ruleset that emulates a Snort ruleset
* Port knocking vs. Single Packet Authorization (SPA)
* Tools for visualizing iptables logs
Perl and C code snippets offer practical examples that will help you to maximize your deployment of Linux firewalls. If you're responsible for keeping a network secure, you'll find Linux Firewalls invaluable in your attempt to understand attacks and use iptables-along with psad and fwsnort-to detect and even prevent compromises.
Thorough, authoritative coverage, practical examples, clear writing, and full-color presentation make this one of the most widely acclaimed programming books of the last decade.
Windows Presentation Foundation (WPF) is the recommended technology for creating modern Windows desktop apps. Whether you want to develop traditional user interfaces or integrate 3D graphics, audio/video, animation, dynamic skinning, touch, rich document support, speech recognition, or more, WPF enables you to do so in a seamless, resolution-independent manner that scales from small tablets to large TVs. WPF 4.5 Unleashed is the authoritative book that covers it all, in a practical and approachable fashion, authored by WPF guru and Microsoft architect Adam Nathan.
Covers everything you need to know about Extensible Application Markup Language (XAML) Examines the WPF feature areas in incredible depth: controls, layout, resources, data binding, styling, graphics, animation, and more Delves into topics that aren’t covered by most books: 3D, speech, audio/video, documents, effects Shows how to create popular UI elements and leverage built-in controls such as the new Office-style Ribbon Demonstrates how to create sophisticated UI mechanisms, such as Visual Studio-like collapsible/dockable panes Explains how to create first-class custom controls for WPF Demonstrates how to create hybrid WPF software that leverages Windows Forms, DirectX, ActiveX, or other non-WPF technologies Explains how to exploit desktop features, such as Jump Lists and taskbar customizations, and the same toast notifications used by Windows Store apps
In The Tangled Web, Michal Zalewski, one of the world's top browser security experts, offers a compelling narrative that explains exactly how browsers work and why they're fundamentally insecure. Rather than dispense simplistic advice on vulnerabilities, Zalewski examines the entire browser security model, revealing weak points and providing crucial information for shoring up web application security. You'll learn how to:
* Perform common but surprisingly complex tasks such as URL parsing and HTML sanitization
* Use modern security features like Strict Transport Security, Content Security Policy, and Cross-Origin Resource Sharing
* Leverage many variants of the same-origin policy to safely compartmentalize complex web applications and protect user credentials in case of XSS bugs
* Build mashups and embed gadgets without getting stung by the tricky frame navigation policy
* Embed or host user-supplied content without running into the trap of content sniffing
For quick reference, "Security Engineering Cheat Sheets" at the end of each chapter offer ready solutions to problems you're most likely to encounter. With coverage extending as far as planned HTML5 features, The Tangled Web will help you create secure web applications that stand the test of time.
Author Matthew Gast—an industry expert who led the development of 802.11-2012 and security task groups at the Wi-Fi Alliance—explains how 802.11ac will not only increase the speed of your network, but its capacity as well. Whether you need to serve more clients with your current level of throughput, or serve your existing client load with higher throughput, 802.11ac is the solution. This book gets you started.Understand how the 802.11ac protocol works to improve the speed and capacity of a wireless LANExplore how beamforming increases speed capacity by improving link margin, and lays the foundation for multi-user MIMOLearn how multi-user MIMO increases capacity by enabling an AP to send data to multiple clients simultaneouslyPlan when and how to upgrade your network to 802.11ac by evaluating client devices, applications, and network connections
Completely updated for System Center 2012 R2 Configuration Manager, this comprehensive book provides intermediate and advanced coverage of all aspects of the product, including planning and installation, migrating from previous versions of Configuration Manager, deploying software and operating systems, security, monitoring and troubleshooting, and automating and customizing.Provides numerous real-world scenarios to show you how to use the tool in various contexts Explores planning and installation and migrating from SCCM 2007 Walks you through deploying software and operating systems, security, monitoring, and troubleshooting Demonstrates automating and customizing SCCM 2012 with scripts
This essential book provides you with all the information you need to get savvy with System Center 2012 R2 Configuration Manager.
The flood of Internet-enabled devices has made migrating to IPv6 a paramount concern worldwide. In this updated edition, Hagen distills more than ten years of studying, working with, and consulting with enterprises on IPv6. It’s the only book of its kind.
IPv6 Essentials covers:Address architecture, header structure, and the ICMPv6 message formatIPv6 mechanisms such as Neighbor Discovery, Stateless Address autoconfiguration, and Duplicate Address detectionNetwork-related aspects and services: Layer 2 support, Upper Layer Protocols, and ChecksumsIPv6 security: general practices, IPSec basics, IPv6 security elements, and enterprise security modelsTransitioning to IPv6: dual-stack operation, tunneling, and translation techniquesMobile IPv6: technology for a new generation of mobile servicesPlanning options, integration scenarios, address plan, best practices, and dos and don’ts
Internet crime is on the rise, catapulting the need for computer forensics specialists. This new edition presents you with a completely updated overview of the basic skills that are required as a computer forensics professional. The author team of technology security veterans introduces the latest software and tools that exist and they review the available certifications in this growing segment of IT that can help take your career to a new level. A variety of real-world practices take you behind the scenes to look at the root causes of security attacks and provides you with a unique perspective as you launch a career in this fast-growing field.Explores the profession of computer forensics, which is more in demand than ever due to the rise of Internet crime Details the ways to conduct a computer forensics investigation Highlights tips and techniques for finding hidden data, capturing images, documenting your case, and presenting evidence in court as an expert witness Walks you through identifying, collecting, and preserving computer evidence Explains how to understand encryption and examine encryption files
Computer Forensics JumpStart is the resource you need to launch a career in computer forensics.
This is the eBook version of the print title, Framework Design Guidelines, Second Edition . Access to all the samples, applications, and content on the DVD is available through the product catalog page www.informit.com/title/9780321545619 Navigate to the “Downloads” tab and click on the “DVD Contents” links - see instructions in back pages of your eBook.
Framework Design Guidelines, Second Edition,teaches developers the best practices for designing reusable libraries for the Microsoft .NET Framework. Expanded and updated for .NET 3.5, this new edition focuses on the design issues that directly affect the programmability of a class library, specifically its publicly accessible APIs.
This book can improve the work of any .NET developer producing code that other developers will use. It includes copious annotations to the guidelines by thirty-five prominent architects and practitioners of the .NET Framework, providing a lively discussion of the reasons for the guidelines as well as examples of when to break those guidelines.
Microsoft architects Krzysztof Cwalina and Brad Abrams teach framework design from the top down. From their significant combined experience and deep insight, you will learnThe general philosophy and fundamental principles of framework design Naming guidelines for the various parts of a framework Guidelines for the design and extending of types and members of types Issues affecting–and guidelines for ensuring–extensibility How (and how not) to design exceptions Guidelines for–and examples of–common framework design patterns
Guidelines in this book are presented in four major forms: Do, Consider, Avoid, and Do not. These directives help focus attention on practices that should always be used, those that should generally be used, those that should rarely be used, and those that should never be used. Every guideline includes a discussion of its applicability, and most include a code example to help illuminate the dialogue.
Framework Design Guidelines, Second Edition, is the only definitive source of best practices for managed code API development, direct from the architects themselves.
A companion DVD includes the Designing .NET Class Libraries video series, instructional presentations by the authors on design guidelines for developing classes and components that extend the .NET Framework. A sample API specification and other useful resources and tools are also included.
Step-by-step instructions carefully walk you through the most common networking tasks.
Q&A sections at the end of each hour help you test your knowledge.
By the Way notes present interesting information related to the discussion.
Did You Know? tips offer advice or show you easier ways to perform tasks.
Watch Out! cautions alert you to possible problems and give you advice on how to avoid them.
Learn how to…Choose the right network hardware and software and use it to build efficient, reliable networks Implement secure, high-speed Internet connections Provide reliable remote access to your users Administer networks to support users of Microsoft, Linux, and UNIX environments Use low-cost Linux servers to provide file and print services to Windows PCs Protect your networks and data against today’s most dangerous threats Use virtualization to save money and improve business flexibility Utilize RAID technologies to provide flexible storage at lower cost Troubleshoot and fix network problems one step at a time Preview and prepare for the future of networking
For many IT organizations, today’s greatest challenge is to drive more value, efficiency, and utilization from data centers. Virtualization is the best way to meet this challenge. Data Center Virtualization Fundamentals brings together the comprehensive knowledge Cisco professionals need to apply virtualization throughout their data center environments. Leading data center expert Gustavo A. A. Santana thoroughly explores all components of an end-to-end data center virtualization solution, including networking, storage, servers, operating systems, application optimization, and security. Rather than focusing on a single product or technology, he explores product capabilities as interoperable design tools that can be combined and integrated with other solutions, including VMware vSphere. With the author’s guidance, you’ll learn how to define and implement highly-efficient architectures for new, expanded, or retrofit data center projects. By doing so, you can deliver agile application provisioning without purchasing unnecessary infrastructure, and establish a strong foundation for new cloud computing and IT-as-a-service initiatives. Throughout, Santana illuminates key theoretical concepts through realistic use cases, real-world designs, illustrative configuration examples, and verification outputs. Appendixes provide valuable reference information, including relevant Cisco data center products and CLI principles for IOS and NX-OS. With this approach, Data Center Virtualization Fundamentals will be an indispensable resource for anyone preparing for the CCNA Data Center, CCNP Data Center, or CCIE Data Center
Learn how virtualization can transform and improve traditional data center network topologies Understand the key characteristics and value of each data center virtualization technology Walk through key decisions, and transform choices into architecture Smoothly migrate existing data centers toward greater virtualization Burst silos that have traditionally made data centers inefficient Master foundational technologies such as VLANs, VRF, and virtual contexts Use virtual PortChannel and FabricPath to overcome the limits of STP Optimize cabling and network management with fabric extender (FEX) virtualized chassis Extend Layer 2 domains to distant data center sites using MPLS and Overlay Transport Virtualization (OTV) Use VSANs to overcome Fibre Channel fabric challenges Improve SAN data protection, environment isolation, and scalability Consolidate I/O through Data Center Bridging and FCoE Use virtualization to radically simplify server environments Create server profiles that streamline “bare metal” server provisioning “Transcend the rack” through virtualized networking based on Nexus 1000V and VM-FEX Leverage opportunities to deploy virtual network services more efficiently Evolve data center virtualization toward full-fledged private clouds
The topics covered will be more in depth than other introductory-level books of similar topics, and will span from layer 2 technologies such as switching, STP, etherchannel, and trunking, all the way to application layer security topics such as firewall inspection and intrusion prevention systems. Items being covered in the middle will include all the common routing protocols RIP, EIGRP, OSPF and BGP. Many other routing technologies and WAN protocols will be covered including Multicast, MPLS, Cable and DSL. Coverage of redundancy protocols such as HSRP, VRRP and GLBP will be examined. A thorough coverage of convergence topics such as how voice, video and wireless traffic affect the network, and what can be done to improve the effects such as QOS and queuing.
This book is a key component for any IT professional preparing for their CCNP certification, as it covers in-depth the topics tested on in all four CCNP exams:Building Scalable Cisco Internetworks (642-901) Building Cisco Multilayer Switched Networks (642-812) Implementing Secure Converged Wide Area Networks (642-825) Optimizing Converged Cisco Networks (642-485)
CD includes the exclusive Sybex Test Engine, with two Practice CCNP exams, as well as author code files.
Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
By reading this definitive tutorial and reference, you'll gain the knowledge and experience to create stunning, cutting-edge Android apps that can make you money, while keeping you agile enough to respond to changes in the future.