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The Linux Network Administrator's Guide, Third Edition dispenses all the practical advice you need to join a network. Along with some hardware considerations, this highly acclaimed guide takes an in-depth look at all of the essential networking software that comes with the operating system--including basic infrastructure (TCP/IP, wireless networking, firewalling) and the most popular services on Linux systems.But as the follow-up to a classic, the third edition of the Linux Network Administrator's Guide does more than just spruce up the basics. It also provides the very latest information on the following cutting-edge services:Wireless hubsOpenLDAPFreeS/WANIMAPSpam filteringOpenSSHBINDIPv6Featuring a litany of insider tips and techniques, the Linux Network Administrator's Guide, Third Edition is an invaluable companion for any network administrator interested in integrating Linux into their Windows environmentAuthored by Terry Dawson, Tony Bautts, and Gregor N. Purdy, the Linux Network Administrator's Guide, Third Edition emerged from the Linux Documentation Project (LDP). The LDP's goal is to centralize all of the issues of Linux documentation, ranging from online documentation topics such as installing, using, and running Linux.

Linux, a Unix-compatible operating system that runs on personal computers and larger servers, is valued above all for its networking strengths. The Linux Network Administrator's Guide spells out all the information needed for joining a network, whether it's a simple UUCP connection or a full LAN with a Linux system serving as a firewall, an NFS or NIS file server, and a mail and news hub.This book, which is one of the most successful to come from the Linux Documentation Project and remains freely distributable under its license, touches on all the essential networking software included with the operating system, plus some hardware considerations. Fully updated, the book now covers firewalls, including the use of ipchains and iptables (netfilter), masquerading, and accounting. Other new topics include Novell (NCP/IPX) support and INN (news administration). Original material on serial connections, UUCP, routing and DNS, mail and News, SLIP and PPP, NFS, and NIS has been thoroughly updated. Kernel options reflect the 2.2 kernel. However, some topics covered in other books (notably Samba and web server administration) are not in this book.Topics include:Introduction to TCP/IPConfiguring network and serial hardwareDomain Name ServiceSerial line communications using SLIP and PPPNIS and NFSTaylor UUCPAdministering electronic mail, including sendmail and Exim Administering Netnews, including INN and several news readersFirewalling using ipfwadm, ipchains, and iptables (netfilter)Masquerading and accountingIPX configuration for a Novell Netware network

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The bestselling CWNA study guide, updated for the latest exam The CWNA: Certified Wireless Network Administrator Study Guide is the ultimate preparation resource for the CWNA exam. Fully updated to align with the latest version of the exam, this book features expert coverage of all exam objectives to help you internalize essential information. A pre-assessment test reveals what you already know, allowing you to focus your study time on areas in need of review, while hands-on exercises allow you to practice applying CWNA concepts to real-world scenarios.  Expert-led discussion breaks complex topics down into easily-digestible chucks to facilitate clearer understanding, and chapter review questions help you gauge your progress along the way. You also get a year of free access to the Sybex online interactive learning environment, which features additional resources and study aids including bonus practice exam questions. The CWNA exam tests your knowledge of regulations and standards, protocols and devices, network implementation, security, and RF site surveying. Thorough preparation gives you your best chance of passing, and this book covers it all with a practical focus that translates to real on-the-job skills. Study 100% of the objectives for Exam CWNA-107 Assess your practical skills with hands-on exercises Test your understanding with challenging chapter tests Access digital flashcards, white papers, bonus practice exams, and more The CWNA certification is a de facto standard for anyone working with wireless technology. It shows employers that you have demonstrated competence in critical areas, and have the knowledge and skills to perform essential duties that keep their wireless technology functioning and safe. The CWNA: Certified Wireless Network Administrator Study Guide gives you everything you need to pass the exam with flying colors.

The Official Study Guide for Exam CWNA-107 from CWNP(R)The Certified Wireless Network Administrator (CWNA) exam (CWNA-107) provides you knowledge of 802.11 wireless LAN (WLAN) hardware and software in relation to administration installation. This study guide provides you with the knowledge you need to prepare for the exam and to perform effectively as a WLAN administrator. You will learn about the operations of 802.11 wireless hardware and software in enterprise environments, as well as troubleshooting, design and analysis tools. This book is your self-study and exam review resource. It is the tool you need to help you prepare for the CWNA-107 exam. While other excellent books may cover the topics presented, no other book so concisely prepares you for certification success.The CWNA Study Guide includes: Full coverage of exam CWNA-107 objectives so that you can feel and be prepared on exam day. Callout notes covering important topics related to the exam and real-world situations. Diagrams and graphics to help you understand complex processes. About CWNP Certifications CWNP is the industry standard for vendor-neutral WLAN certifications focused on 802.11 technologies and common vendor-implemented solutions. Our certifications help you master WLANs from conception to troubleshooting and analysis and everything in between. 866.438.2963 cwnp.com

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Linux Cookbook: Essential Skills for Linux Users and System & Network Administrators 1.89

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While designed with IT professionals and network administrators in mind, the APC Smart-UPS SRT 1500VA 120V 2U Rackmount with Network Management Card, Black, is a reliable and high-performance solution for maintaining business uptime and continuity. This durable UPS provides pure sine wave power and extended runtime, ensuring critical electronics remain operational during power disruptions.Equipped with a NEMA 5-15P input and six NEMA 5-15R outlets, this efficient UPS can support a multitude of devices. The preinstalled Network Management Card allows for network-based monitoring and management, offering seamless integration with EcoStruxure IT or third-party centralized management platforms.The UPS features a user-friendly LCD graphics display, showcasing modes of operation, system parameters, and alarms. It also offers an ECO Mode, bypassing unused electrical components in good power conditions to achieve high operating efficiency without sacrificing protection. The UPS is also rack/tower convertible, protecting your initial investment when migrating from a tower to a rack-mount environment.This Smart-UPS conducts automatic self-tests for early detection of a battery that needs replacement and provides disconnected battery notifications. It also features predictive failure notifications for proactive component replacement. User-replaceable batteries increase availability, reducing Mean Time to Repair (MTTR).The UPS also offers audible alarms for changing utility power and UPS power conditions. Its firmware is flash upgradeable, allowing for remote installation of maintenance releases. The UPS is also adaptable, with plug-and-play external batteries ensuring clean, uninterrupted power when adding extra runtime.Manageability is a breeze with LED status indicators, network manageability, and a customizable intelligent card slot. The UPS also offers serial connectivity for management via a serial port. It automatically restarts loads after UPS shutdown and features hot-swappable batteries for uninterrupted power during battery replacement.The UPS also offers intelligent battery management for maximized battery performance, life, and reliability. It features automatic internal bypass, supplying utility power to connected loads in the event of a UPS power overload or fault. It also offers input power factor correction, power conditioning, and resettable circuit breaker for easy recovery from overloads.The UPS is safety-agency approved, cold-start capable, and generator compatible. It offers frequency and voltage regulation for higher application availability. With its low operating and maintenance costs, intelligent battery management, and full equipment compatibility, this UPS provides peace of mind for users. It also offers network grade power conditioning, protecting from damaging surges and disruptive noise. The double conversion architecture provides tight voltage regulation, frequency regulation, and zero transfer time to battery during power...

This unique and valuable collection of tips, tools, and scripts provides clear, concise, hands-on solutions that can be applied to the challenges facing anyone running a network of Linux servers from small networks to large data centers in the practical and popular problem-solution-discussion O'Reilly cookbook format.The Linux Cookbook covers everything you'd expect: backups, new users, and the like. But it also covers the non-obvious information that is often ignored in other books the time-sinks and headaches that are a real part of an administrator's job, such as: dealing with odd kinds of devices that Linux historically hasn't supported well, building multi-boot systems, and handling things like video and audio.The knowledge needed to install, deploy, and maintain Linux is not easily found, and no Linux distribution gets it just right. Scattered information can be found in a pile of man pages, texinfo files, and source code comments, but the best source of information is the experts themselves who built up a working knowledge of managing Linux systems. This cookbook's proven techniques distill years of hard-won experience into practical cut-and-paste solutions to everyday Linux dilemmas.Use just one recipe from this varied collection of real-world solutions, and the hours of tedious trial-and-error saved will more than pay for the cost of the book. But those who prefer to learn hands-on will find that this cookbook not only solves immediate problems quickly, it also cuts right to the chase pointing out potential pitfalls and illustrating tested practices that can be applied to a myriad of other situations.Whether you're responsible for a small Linux system, a huge corporate system, or a mixed Linux/Windows/MacOS network, you'll find valuable, to-the-point, practical recipes for dealing with Linux systems everyday. The Linux Cookbook is more than a time-saver; it's a sanity saver.

A modern computer system that's not part of a network is even more of an anomaly today than it was when we published the first edition of this book in 1991. But however widespread networks have become, managing a network and getting it to perform well can still be a problem.Managing NFS and NIS, in a new edition based on Solaris 8, is a guide to two tools that are absolutely essential to distributed computing environments: the Network Filesystem (NFS) and the Network Information System (formerly called the "yellow pages" or YP).The Network Filesystem, developed by Sun Microsystems, is fundamental to most Unix networks. It lets systems ranging from PCs and Unix workstations to large mainframes access each other's files transparently, and is the standard method for sharing files between different computer systems.As popular as NFS is, it's a "black box" for most users and administrators. Updated for NFS Version 3, Managing NFS and NIS offers detailed access to what's inside, including:How to plan, set up, and debug an NFS networkUsing the NFS automounterDiskless workstationsPC/NFSA new transport protocol for NFS (TCP/IP)New security options (IPSec and Kerberos V5)Diagnostic tools and utilitiesNFS client and server tuningNFS isn't really complete without its companion, NIS, a distributed database service for managing the most important administrative files, such as the passwd file and the hosts file. NIS centralizes administration of commonly replicated files, allowing a single change to the database rather than requiring changes on every system on the network.If you are managing a network of Unix systems, or are thinking of setting up a Unix network, you can't afford to overlook this book.

* Essential reading for administrators of Red Hat Linux who download the software * The book to read after The Official Red Hat Linux User's Guide (0-7645-4967-7) * Includes high-end Red Hat administration instruction on features such as GRUB and ext3 * Advanced topics cover creating network scripts, configuring Apache and Samba, Kickstart installations, and configuration of major protocols such as SSH, LDAP, DHCP, and BIND RED HAT PRESS(TM) Linux Solutions from the Experts at Red Hat Red Hat-the world's leading Linux company-presents a series of unrivaled guides that are reviewed and approved by the experts at Red Hat. Each book is packed with invaluable tips and techniques that are ideal for everyone from beginning to advanced network and systems professionals, as well as home and small businesses.

If you are a network administrator, you're under a lot of pressure to ensure that mission-critical systems are completely safe from malicious code, buffer overflows, stealth port scans, SMB probes, OS fingerprinting attempts, CGI attacks, and other network intruders. Designing a reliable way to detect intruders before they get in is an essential--but often overwhelming--challenge. Snort, the defacto open source standard of intrusion detection tools, is capable of performing real-time traffic analysis and packet logging on IP network. It can perform protocol analysis, content searching, and matching. Snort can save countless headaches; the new Snort Cookbook will save countless hours of sifting through dubious online advice or wordy tutorials in order to leverage the full power of SNORT.Each recipe in the popular and practical problem-solution-discussion O'Reilly cookbook format contains a clear and thorough description of the problem, a concise but complete discussion of a solution, and real-world examples that illustrate that solution. The Snort Cookbook covers important issues that sys admins and security pros will us everyday, such as:installationoptimizationloggingalertingrules and signaturesdetecting virusescountermeasuresdetecting common attacksadministrationhoneypotslog analysisBut the Snort Cookbook offers far more than quick cut-and-paste solutions to frustrating security issues. Those who learn best in the trenches--and don't have the hours to spare to pore over tutorials or troll online for best-practice snippets of advice--will find that the solutions offered in this ultimate Snort sourcebook not only solve immediate problems quickly, but also showcase the best tips and tricks they need to master be security gurus--and still have a life.

Stop waiting for the network team!If basic TCP/IP was hard, network administrators couldn’t do it. Servers give sysadmins a incredible visibility into the network—once they know how to unlock it. Most sysadmins don’t need to understand window scaling, or the differences between IPv4 and IPv6 echo requests, or other intricacies of the TCP/IP protocols. You need only enough to deploy your own applications and get easy support from the network team.This book teaches you:·How modern networks really work·The essentials of TCP/IP·The next-generation protocol, IPv6·The right tools to diagnose network problems, and how to use them·Troubleshooting everything from the physical wire to DNS·How to see the traffic you send and receive·Connectivity testing·How to communicate with your network team to quickly resolve problemsA systems administrator doesn’t need to know the innards of TCP/IP, but knowing enough to diagnose your own network issues transforms a good sysadmin into a great one.

Get your Web security, network perimeter security, and application layer security gateway up and running smoothly. This indispensible, single-volume reference details the features and capabilities of Microsoft® Forefront® Threat Management Gateway (TMG). You'll gain the real-world insights, implementation and configuration best practices, and management practices you need for on-the-job results. Discover how to: Implement TMG integrated security features Analyze your Web and perimeter security requirements and infrastructure Plan, install, and configure TMG Implement network intrusion prevention, proxy, caching, filtering Configure security for the Web, Microsoft® Exchange Server, and SharePoint® Products and Technologies Implement remote access and site-to-site VPNs Select and configure clients Monitor and troubleshoot protected systems with Network Monitor 3 and other tools Use scripting to configure systems and automate administration Plus, get a fully searchable eBook on the companion CD A Note Regarding the CD or DVD The print version of this book ships with a CD or DVD. For those customers purchasing one of the digital formats in which this book is available, we are pleased to offer the CD/DVD content as a free download via O'Reilly Media's Digital Distribution services. To download this content, please visit O'Reilly's web site, search for the title of this book to find its catalog page, and click on the link below the cover image (Examples, Companion Content, or Practice Files). Note that while we provide as much of the media content as we are able via free download, we are sometimes limited by licensing restrictions. Please direct any questions or concerns to booktech@oreilly.com.

To use or not to use NAT? If you're a network manager or administrator eager to embrace network address translation (NAT) as a security and connectivity solution, yet are wary of its temperamental reputation, Bill Dutcher's roadmap to NAT strategy is for you. Drawing on his practical addressing experience at one of the world's largest ISPs, Dutcher provides all the information you need to evaluate NAT's suitability for your network, implement and manage it, and justify its use.You'll find clear explanations of NAT techniques, advantages and disadvantages, as well as how to deploy it with different technologies-from routers, firewalls, and proxies to VPNs. The book includes two detailed case studies demonstrating how to implement NAT on a firewall in order to move your network to private addressing and how to use NAT to balance the load on a group of servers. Other essential topics include: * How NAT works to translate IP addresses from private to public domains * NAT solutions in connectivity, routing, load balancing, and security * Why NAT interferes with certain applications and how to overcome these problems * Static or dynamic NAT-which is the right method for your situation * The effects of NAT on DNS services and how to make them work together * How NAT works in VPN environments and with VPN security techniques * The future of NAT and the public address crisis Networking Council Books put technology into perspective for decision-makers who need an implementation strategy, a vendor and outsourcing strategy, and a product and design strategy. The Council of series advisors is comprised of three of the most influential leaders of the networking community.

Upgrading and Repairing Networks, Fifth Edition  is the definitive guide for anyone with a network, from home networking enthusiasts to professional network administrators. The book explains network architectures and protocols using plain English and real-world examples, and gives valuable insight for fixing network problems. This updated edition includes the latest on network planning and design, and building a network using wired, wireless, or both technologies. It covers the latest updates in Windows XP Service Pack 2, as well as Gigabit Ethernet, virtual LANs, Bluetooth, WAP, security, firewalls, and VPN use.

A guide for network administrators, MIS managers, information technologists, and technicians with experience in networking. Shows how to create and maintain a Virtual Private Network (VPN) that allows companies to send data across the Internet through an encrypted "tunnel." Screenshots and step-by-step examples are used to further explain concepts. Wilson has researched design and installation of data interfaces. Doak is a professor of electronics and computer systems technology at the College of the Mainland in Texas. Annotation c. Book News, Inc., Portland, OR (booknews.com)