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.
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.
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.
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.
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.
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
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
—Vint Cerf, Internet pioneer
TCP/IP Illustrated, Volume 1, Second Edition, is a detailed and visual guide to today’s TCP/IP protocol suite. Fully updated for the newest innovations, it demonstrates each protocol in action through realistic examples from modern Linux, Windows, and Mac OS environments. There’s no better way to discover why TCP/IP works as it does, how it reacts to common conditions, and how to apply it in your own applications and networks.
Building on the late W. Richard Stevens’ classic first edition, author Kevin R. Fall adds his cutting-edge experience as a leader in TCP/IP protocol research, updating the book to fully reflect the latest protocols and best practices. He first introduces TCP/IP’s core goals and architectural concepts, showing how they can robustly connect diverse networks and support multiple services running concurrently. Next, he carefully explains Internet addressing in both IPv4 and IPv6 networks. Then, he walks through TCP/IP’s structure and function from the bottom up: from link layer protocols–such as Ethernet and Wi-Fi–through network, transport, and application layers.
Fall thoroughly introduces ARP, DHCP, NAT, firewalls, ICMPv4/ICMPv6, broadcasting, multicasting, UDP, DNS, and much more. He offers extensive coverage of reliable transport and TCP, including connection management, timeout, retransmission, interactive data flow, and congestion control. Finally, he introduces the basics of security and cryptography, and illuminates the crucial modern protocols for protecting security and privacy, including EAP, IPsec, TLS, DNSSEC, and DKIM. Whatever your TCP/IP experience, this book will help you gain a deeper, more intuitive understanding of the entire protocol suite so you can build better applications and run more reliable, efficient networks.
The book's authors have taken great care to ensure all exam topics and fundamental networking areas are covered in full. The OSI Model, the Data Link, Network, Transport and Application Layers, Switching & Routing, F5 Solutions, Load Balancing, Security and Application Delivery Platforms are all covered in depth. No prior knowledge or experience is assumed.
There are 13 chapters, 90 diagrams and over 70 test questions to ensure you have everything necessary to prepare for and pass the exam with confidence.
Download of the PDF file has been disabled.
The fifth edition covers BIND 9.3.2, the most recent release of the BIND 9 series, as well as BIND 8.4.7. BIND 9.3.2 contains further improvements in security and IPv6 support, and important new features such as internationalized domain names, ENUM (electronic numbering), and SPF (the Sender Policy Framework).
Whether you're an administrator involved with DNS on a daily basis or a user who wants to be more informed about the Internet and how it works, you'll find that this book is essential reading.
Topics include:What DNS does, how it works, and when you need to use itHow to find your own place in the Internet's namespaceSetting up name serversUsing MX records to route mailConfiguring hosts to use DNS name serversSubdividing domains (parenting)Securing your name server: restricting who can query your server, preventing unauthorized zone transfers, avoiding bogus servers, etc.The DNS Security Extensions (DNSSEC) and Transaction Signatures (TSIG)Mapping one name to several servers for load sharingDynamic updates, asynchronous notification of change to a zone, and incremental zone transfersTroubleshooting: using nslookup and dig, reading debugging output, common problemsDNS programming using the resolver library and Perl's Net::DNS module
With hundreds of practice exam questions, including new performance-based types, CompTIA Network+ Certification Study Guide, Sixth Edition (Exam N10-006) covers everything you need to know to prepare for this challenging exam.100% complete coverage of all official objectives for exam N10-006 Exam Readiness checklist—you’re ready for the exam when all objectives on the list are checked off Inside the Exam sections in every chapter highlight key exam topics covered Two-Minute Drills for quick review at the end of every chapter Simulated exam questions match the format, tone, topics, and difficulty of the real exam
Covers all the exam topics, including:
Basic Network Concepts * Network Protocols and Standards * Networking Components * TCP/IP Addressing * TCP/IP Protocols * TCP/IP Utilities * Configuring Routers and Switches * Subnetting and Routing * Configuring Network Services * Wireless Networking * Remote Access and VPN Connectivity * Wide Area Network Technologies * Implementing a Network * Maintaining and Supporting a Network * Network Security Principles * Network Security Practices * Monitoring the Network * Troubleshooting the Network
Electronic content includes:500+ practice exam questions Test engine with practice exams and custom quizzes based on chapters or exam objectives NEW performance-based questions NEW Pre-assessment test 3+ hours of video training 20+ lab exercises Quick Review Guide Worksheets
Save 10% on any CompTIA exam voucher! Coupon code inside the book.
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
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
Author Elliotte Rusty Harold provides complete working programs to illustrate the methods and classes he describes. This thoroughly revised fourth edition covers REST, SPDY, asynchronous I/O, and many other recent technologies.Explore protocols that underlie the Internet, such as TCP/IP and UDP/IPLearn how Java’s core I/O API handles network input and outputDiscover how the InetAddress class helps Java programs interact with DNSLocate, identify, and download network resources with Java’s URI and URL classesDive deep into the HTTP protocol, including REST, HTTP headers, and cookiesWrite servers and network clients, using Java’s low-level socket classesManage many connections at the same time with the nonblocking I/O
Network Warrior takes you step by step through the world of hubs, switches, firewalls, and more, including ways to troubleshoot a congested network, and when to upgrade and why. Along the way, you 'll gain an historical perspective of various networking features, such as the way Ethernet evolved. Based on the author 's own experience as well as those he worked for and with, Network Warrior is a Cisco-centric book, focused primarily on the TCP/IP protocol and Ethernet networks -- the realm that Cisco Systems now dominates. The book covers:
The type of networks now in use, from LANs, WANs and MANs to CANs
The OSI Model and the layers involved in sending dataHubs, repeaters, switches, and trunks in practiceAuto negotiation and why it 's a common problem in network slowdownsRoute maps, routing protocols, and switching algorithms in Cisco routersThe resilient Ethernet -- how to make things truly redundantCisco 6500 multi-layer switches and the Catalyst 3750 switchTelecom nomenclature -- why it 's different from the data worldT1 and DS3Firewall theory, designing access lists, authentication in Cisco devicesServer load balancing technologyContent switch module in actionDesigning QOS and what QOS does not doIP design and subnetting made easy
The book also explains how to sell your ideas to management, how networks become a mess as a company grows, and why change control is your friend. Network Warrior will help network administrators and engineers win the complex battles they face every day.
This book will walk you through exploring and harnessing the vast potential of Wireshark, the world's foremost network protocol analyzer.
The book begins by introducing you to the foundations of Wireshark and showing you how to browse the numerous features it provides. You'll be walked through using these features to detect and analyze the different types of attacks that can occur on a network. As you progress through the chapters of this book, you'll learn to perform sniffing on a network, analyze clear-text traffic on the wire, recognize botnet threats, and analyze Layer 2 and Layer 3 attacks along with other common hacks.
By the end of this book, you will be able to fully utilize the features of Wireshark that will help you securely administer your network.
Practical discussions provide an inside look at TCP/IP components and protocols.
Step-by-step instructions walk you through many common tasks.
Q&As at the end of each hour help you test your knowledge.
Notes and tips point out shortcuts and solutions and help you steer clear of potential problems.
If you’re looking for a smart, concise introduction to the protocols that power the Internet, start your clock and look inside. Sams Teach Yourself TCP/IP in 24 Hours is your guide to the secrets of TCP/IP.
Learn how to…
Understand what TCP/IP is, and how it works Discover how IPv6 differs from IPv4, and how to migrate or coexist with IPv6 Work with TCP/IP’s Network Access, Internet, Transport, and Application layers Implement flexible addressing with subnetting and CIDR Establish efficient and reliable routing Implement name resolution Secure TCP/IP networks—detect and prevent attacks Automatically configure TCP/IP clients and hosts Provide classic TCP/IP services and powerful new Web services Use TCP/IP in advanced cloud-based environments Support efficient media streaming and webcasting Capitalize on the benefits of the new HTML5 standard Run TCP/IP protocols over wireless networks Troubleshoot TCP/IP networks with ping, traceroute, and other tools Provide for monitoring and remote access Deploy efficient email systems with POP3, IMAP4, and SMTP Walk through all facets of implementing a TCP/IP network
Ideal for beginning network engineers, each chapter in this book includes a set of review questions, as well as practical, hands-on lab exercises.
You’ll explore topics including:Basic network architecture: how protocols and functions fit togetherThe structure and operation of the Ethernet protocolTCP/IP protocol fields, operations, and addressing used for networksThe address resolution process in a typical IPv4 networkSwitches, access points, routers, and components that process packetsTCP details, including packet content and client-server packet flowHow the Internet Control Message Protocol provides error messages during network operationsHow network mask (subnetting) helps determine the networkThe operation, structure, and common uses of the user datagram protocol
Leading networking instructor Rick Graziani explains all the basics simply and clearly, one step at a time, providing all the details you’ll need to succeed. Building on this introductory coverage, he then introduces more powerful techniques that involve multiple protocols and processes and provides hands-on resources you can rely on for years to come.
You’ll begin by learning why IPv6 is necessary, how it was created, and how it works. Next, Graziani thoroughly introduces IPv6 addressing, configuration options, and routing protocols, including RIPng, EIGRP for IPv6, and OSPFv3. You’ll learn how to integrate IPv6 with IPv4, enabling both protocols to coexist smoothly as you move towards full reliance on IPv6.
Throughout, Graziani presents all the IOS command syntax you’ll need, offering specific examples, diagrams, and Cisco-focused IPv6 configuration tips. You’ll also find links to Cisco white papers and official IPv6 RFCs that support an even deeper understanding.
Rick Graziani teaches computer science and computer networking courses at Cabrillo College. He has worked and taught in the computer networking and IT field for nearly 30 years, and currently consults for Cisco and other leading clients. Graziani’s recent Cisco Networking Academy Conference presentation on IPv6 Fundamentals and Routing drew a standing audience and the largest virtual audience for any session at the event. He previously worked for companies including Santa Cruz Operation, Tandem Computers, and Lockheed.
· Understand how IPv6 overcomes IPv4’s key limitations
· Compare IPv6 with IPv4 to see what has changed and what hasn’t
· Represent IPv6 addresses, including subnet addresses
· Enable IPv6 on router interfaces using static, dynamic, EUI-64, unnumbered, SLAAC, and DHCPv6 approaches
· Improve network operations with ICMPv6 and Neighbor Discovery Protocol
· Configure IPv6 addressing and Access Control Lists using a common topology
· Work with IPv6 routing tables and configure IPv6 static routes
· Compare, configure, and verify each IPv6 IGP routing protocol
· Implement stateful and stateless DHCPv6 services
· Integrate IPv6 with other upper-level protocols, including DNS, TCP, and UDP
· Use dual-stack techniques to run IPv4 and IPv6 on the same device
· Establish coexistence between IPv4 and IPv6 through manual, 6to4, or ISATAP tunneling
· Promote a smooth transition with NAT64 (Network Address Translation IPv6 to IPv4)
This book is part of the Cisco Press Fundamentals Series. Books in this series introduce networking professionals to new networking technologies, covering network topologies, sample deployment concepts, protocols, and management techniques.
This second edition was written by a Senior NOC engineer, whose vast experience with the MX Series is well documented. Each chapter covers a specific Juniper MX vertical and includes review questions to help you test what you’ve learned. This edition includes new chapters on load balancing and vMX—Juniper MX’s virtual instance.Work with Juniper MX’s bridging, VLAN mapping, and support for thousands of virtual switchesExamine Juniper MX high-availability features and protocolsUse Trio Chipset’s load balancing features for different types of trafficExplore the benefits and typical use cases of vMXAdd an extra layer of security with Junos DDoS protectionCreate a firewall filter framework that applies filters specific to your networkDiscover the advantages of hierarchical schedulingCombine Juniper MX routers, using a virtual chassis or Multi-chassis LAGInstall network services such as Network Address Translation (NAT)
Its emphasis on practical solutions also makes this book an ideal on-the-job reference for design, maintenance, and troubleshooting issues in the enterprise. Simply put, this updated edition is the most comprehensive and authoritative resource for Juniper enterprise and edge routing environments you will find. Topics include:Design guidelines for the entire Juniper enterprise router lineup (M-series, MX Mid-Range series, and SRX)Junos interfaces, with advanced troubleshooting techniquesThe IGP and BGP routing protocols and the implementation of routing policiesSecurity concepts, and the tools to deploy themLayer 2 services, IP Class of Service, and IP Multicast with working case studies of eachCoverage of flow-based Junos security services
This book is the official study guide for all three Juniper Enterprise Routing certification exams, and is highly recommended reading to pass the exams. With its field-guide emphasis on practical solutions, you can easily take the book beyond the classroom and into working networks as a design, maintenance, and troubleshooting reference par excellence.
JUNOS Enterprise Routing covers all three certification exams in this track:
Juniper Networks Certified Internet Associate (JNCIA-ER)Juniper Networks Certified Internet Specialist (JNCIS-ER)Juniper Networks Certified Internet Expert (JNCIE-ER)
With more services such as voice, conference, and multicast on the IP router platform, the market for enterprise routers is growing exponentially, and the need for certified engineers to keep up with network developments in protocols and security is paramount. For everyone who works with Juniper enterprise and edge routing environments, this is a must-have book.
As more corporations adopt Linux as the networking backbone for theirIT systems, the demand for certified technicians will becomeeven greater. Passing the LPI exams will broaden your career optionsbecause the LPICis the most widely known and respected Linux certification program intheworld. Linux Journal recognized the LPI as the bestTraining andCertification Program. The exams were developed by the LinuxProfessional Institute,an international, volunteer-driven organization with affiliates in adozen countries.
The core LPI exams cover two levels. Level 1 tests a basic knowledge ofLinux installation, configuration, and command-lineskills. Level 2 goes into much more depth regarding systemtroubleshooting andnetwork services such as email and the Web. The second edition of LPILinuxCertification in a Nutshell is a thoroughly researchedreference to these exams. The book is divided into four parts, one foreach of theLPI exams. Each part features not only a summary of the core skills youneed, but sample exercises and test questions, along with helpful hintsto letyou focus your energies.
Major topics include:GNU and Unix commandsLinux installation and package managementDevices, filesystems, and kernel configurationText editing, processing, and printingThe X Window SystemNetworking fundamentals and troubleshootingSecurity, including intrusion detection, SSH, Kerberos, andmoreDNS, DHCP, file sharing, and other networking infrastructureEmail, FTP, and Web services
Praise for the first edition:
"Although O'Reilly's Nutshell series are intended as 'DesktopReference' manuals, I have to recommend this one as a goodall-round read; not only as a primer for LPI certification, but as anexcellent introductory text on GNU/Linux. In all, this is a valuableaddition toO'Reilly's already packed stable of Linux titles and I look forward tomore from the author."--First Monday
Radio networking is creating revolutions in volcano monitoring, performance art, clean energy, and consumer electronics. As you follow the examples in each chapter, you'll learn how to tackle inspiring projects of your own. This practical guide is ideal for inventors, hackers, crafters, students, hobbyists, and scientists.Investigate an assortment of practical and intriguing project ideasPrep your ZigBee toolbox with an extensive shopping list of parts and programsCreate a simple, working ZigBee network with XBee radios in less than two hours -- for under $100Use the Arduino open source electronics prototyping platform to build a series of increasingly complex projectsGet familiar with XBee's API mode for creating sensor networksBuild fully scalable sensing and actuation systems with inexpensive componentsLearn about power management, source routing, and other XBee technical nuancesMake gateways that connect with neighboring networks, including the Internet
Two network and cloud professionals from Juniper describe how MPLS technologies and applications have rapidly evolved through services and architectures such as Ethernet VPNs, Network Function Virtualization, Seamless MPLS, Egress Protection, External Path Computation, and more. This book contains no vendor bias or corporate messages, just solid information on how to get a multivendor network to function optimally.
Topics include:Introduction to MPLS and Software-Defined Networking (SDN)The four MPLS Builders (LDP, RSVP-TE, IGP SPRING, and BGP)Layer 3 unicast and multicast MPLS services, Layer 2 VPN, VPLS, and Ethernet VPNInter-domain MPLS ServicesUnderlay and overlay architectures: data centers, NVO, and NFVCentralized Traffic Engineering and TE bandwidth reservationsScaling MPLS transport and servicesTransit fast restoration based on the IGP and RSVP-TEFIB optimization and egress service for fast restoration
Wireless technology changes not only the way we talk to our devices, but also what we ask them to do. With greater flexibility, broader range, and increased mobility, wireless networks let us live, work, and think differently. Wireless networks also open up a vast range of tasty new hack possibilities, from fine-tuning network frequencies to hot-rodding handhelds.
The second edition of Wireless Hacks, co-authored by Rob Flickenger and Roger Weeks, brings readers more of the practical tips and tricks that made the first edition a runaway hit, selling nearly 30,000 copies. Completely revised and updated, this version includes over 30 brand new hacks, major overhauls of over 30 more, and timely adjustments and touchups to dozens of other hacks introduced in the first edition. From passive network scanning to aligning long-distance antennas, beefing up wireless network security, and beyond, Wireless Hacks answers real-life networking needs with direct solutions.
Flickenger and Weeks both have extensive experience in systems and network administration, and share a passion for making wireless more broadly available. The authors include detailed coverage for important new changes in specifications and in hardware and software, and they delve deep into cellular and Bluetooth technologies.
Whether you need your wireless network to extend to the edge of your desk, fit into your backpack, or cross county lines, the proven techniques in Wireless Hacks will show you how to get the coverage and functionality you're looking for.
The sendmail program has withstood the test of time because of its ability to solve the mail-routing needs of all sites large or small, complex or simple. But it's also difficult to configure and even more difficult to understand. That's why this book has proven valuable since the dawn of email. With it, you will be able to configure the program to meet any need, so that you never again have to call in a sendmail guru to bail you out.
sendmail includes the following sections:Some Basics is especially useful for people new to the program. It covers the basic concepts underlying mail delivery and the roles sendmail plays in that delivery
Administration covers all aspects of handling sendmail, from downloading and installing new releases to managing mailing lists and aliases
Configuration Reference contains a heavily cross-referenced guide for configuring and tuning sendmail. Every arcane detail of sendmail is listed alphabetically
Appendices contain more detail about sendmail than you may ever need
This edition also includes new material on SSL and AUTH and a new chapter on Mitlers. If you're interested in what has changed since the last edition, one appendix categorizes the many improvements of sendmail's intervening versions by chapter, complete with references to the appropriate sections and page numbers in the book.
With sendmail, system administrators, programmers, network engineers, and even inexperienced users will be able to match this challenging but necessary utility to the needs of their network.
A robust Border Gateway Protocol setup is vital to ensuring reliable connectivity, an essential capability for any organization. The Internet has become a necessary, always-on service in homes and businesses, and BGP is the protocol that keeps communication flowing. But BGP also has become crucial to delivery of intra-domain business services. But the network is only as reliable as BGP, so service enablement depends upon making BGP more stable, reliable, and service-rich.
Alcatel-Lucent Service Router Operating System is engineered to bear the load of the most demanding networks. The system features support for Symmetric Multiprocessing and unprecedented depth of advanced routing features, all within a single OS that's supported across the entire Alcatel-Lucent IP/MPLS router portfolio. Versatile Routing and Services with BGP provides guidance toward implementation of BGP within SR-OS, and details the use and control of each feature. The book provides in-depth coverage of topics such as:BGP/MPLS IP-VPN, VPLS, VPWS Labeled Unicast IPv4, reconvergence, and multicast Security, graceful restart and error handling IPv6 PE (6PE) and IPv6 extensions to BGP/MPLS IP-VPN A look at forthcoming features such as Ethernet VPN
Basic BGP competency is assumed, but the book is accessible even to those with zero familiarity with Alcatel-Lucent's SR-OS. It underscores the idea that BGP is more than just service enablement, and can also be used for infrastructure layer transport - but both layers must be solid, scalable, and able to quickly reconverge. Versatile Routing and Services with BGP demonstrates the creation of a robust BGP control plane within a, secure network, allowing the delivery of flawless, uninterrupted service.
Mike Meyers’ CompTIA Network+ Guide to Managing and Troubleshooting Networks Lab Manual, Fourth Edition features:80+ lab exercises challenge you to solve problems based on realistic case studies Lab analysis tests measure your understanding of lab results Step-by-step scenarios require you to think critically Key term quizzes help build your vocabulary
Get complete coverage of key skills and concepts, including:Network architectures Cabling and topology Ethernet basics Network installation TCP/IP applications and network protocols Routing Network naming Advanced networking devices IPv6 Remote connectivity Wireless networking Virtualization and cloud computing Network operations Managing risk Network security Network monitoring and troubleshooting
Instructor resources available:This lab manual supplements the textbook Mike Meyers' CompTIA Network+ Guide to Managing and Troubleshooting Networks, Fourth Edition (Exam N10-006), which is available separately Solutions to the labs are not printed in the book and are only available to adopting instructors
Which is why we created Linux Server Hacks, Volume Two, a second collection of incredibly useful tips and tricks for finding and using dozens of open source tools you can apply to solve your sys admin problems. The power and flexibility of Linux and Open Source means that there is an astounding amount of great software out there waiting to be applied to your sys admin problems -- if only you knew about it and had enough information to get started. Hence, Linux Server Hacks, Volume Two.
This handy reference offers 100 completely new server management tips and techniques designed to improve your productivity and sharpen your administrative skills. Each hack represents a clever way to accomplish a specific task, saving you countless hours of searching for the right answer. No more sifting through man pages, HOWTO websites, or source code comments -- the only resource you need is right here. And you don't have to be a system administrator with hundreds of boxen to get something useful from this book as many of the hacks apply equally well to a single system or a home network.
Compiled by experts, these hacks not only give you the step-by-step instructions necessary to implement the software, but they also provide the context to truly enable you to learn the technology. Topics include:AuthenticationRemote GUI connectivityStorage managementFile sharing and synchronizing resourcesSecurity/lockdown instructionLog files and monitoringTroubleshootingSystem rescue, recovery, and repair
Whether they help you recover lost data, collect information from distributed clients, or synchronize administrative environments, the solutions found in Linux Server Hacks, Volume Two will simplify your life as a system administrator.
This book is chock-full of helpful technical illustrations and code examples to help you get started on all of the major architectures and features of Juniper QFX5100 switches, whether you’re an enterprise or service provider. With this book, you’ll be well on your way to becoming a Juniper QFX5100 expert.
All of the examples and features are based on Junos releases 13.2X51-D20.2 and 14.1X53-D10.Fully understand the hardware and software architecture of the Juniper QFX5100Design your own IP Fabric architecturePerform in-service software upgradesBe familiar with the performance and scaling maximumsCreate a data center switching fabric with Virtual Chassis FabricAutomate networking devices with Python, Ruby, Perl, and GoBuild an overlay architecture with VMware NSX and Juniper ContrailExport real-time analytics information to graph latency, jitter, bandwidth, and other features
OpenBTS can distribute any internet connection as a mobile network across a large geographic region, and provide connectivity to remote devices in the Internet of Things. Ideal for telecom and software engineers new to this technology, this book helps you build a basic OpenBTS network with voice and SMS services and data capabilities. From there, you can create your own niche product or experimental feature.Select hardware, and set up a base operating system for your projectConfigure, troubleshoot, and use performance-tuning techniquesExpand to a true multinode mobile network complete with Mobility and HandoverAdd general packet radio service (GPRS) data connectivity, ideal for IoT devicesBuild applications on top of the OpenBTS NodeManager control and event APIs
Seamlessly merge the Internet with cellular and wireless networks using next-generation IMS technology and the comprehensive information contained in this authoritative resource. The IP Multimedia Subsystem: Session Control and Other Network Operations details the steps necessary to deliver Web-based content, VoIP, streaming multimedia, conference calls, and text messages across one integrated network. Learn how to transition to IMS architecture, communicate with legacy networks, control sessions using SIP, and connect subscribers to network services. In-depth coverage of the latest IMS security, business intelligence, customer care, and billing procedures is also included.Migrate legacy networks to IMS-based technology Use the Proxy, Interrogating, and Serving Call Session Control Functions Interface with TDM-based, wireless, wireline, and VoIP networks Handle private and public user identities, domain names, and URLs Establish SIP sessions and connect subscribers to network services Deploy reliable network, access, and user-level security Prevent eavesdropping, DoS, message tampering, and amplification exploits Track services rendered and charge subscribers using DIAMETER and CDRs
The implementation described and examined in this book is written in C++ and designed with porting in mind. The book details the software architecture of the implementation and describes in-depth key OSPF functions, illustrated by numerous code samples. It also includes a guide to porting OSPF software to different environments, with an explanation of the software layer between the OSPF implementation and the operating system. In addition, two sample ports are included–a routing daemon for Linux and an OSPF routing simulator for Linux and Windows.
Key topics covered include:Implementation architecture, including I/O, data flow, and data structures Porting considerations, including handling different types of CPU chips AVL trees, Patricia trees, priority queues, timers, and logging messages The IP routing table Link-state database, including aging LSAs Neighbor discovery and the neighbor state machine Synchronization of link-state databases through the flooding algorithm Hierarchy Routing calculations, including intra-area, inter-area, and external routes An implementation of the Multicast Extensions to OSPF (MOSPF) Configuration and monitoring, including cryptographic authentication Host wiretapping
Together, OSPF: Anatomy of an Internet Routing Protocol and OSPF Complete Implementation provide an in-depth view into the theory and inner workings of OSPF, and the knowledge you need to make full use of this important protocol in Internet-based applications.