The all-in-one practical guide to supporting Cisco networks using freeware tools.

The all-in-one practical guide to supporting your Cisco network Provides detailed tips for using freeware and open-source tools readily available from the Internet, including the reasons behind choosing a particular tool Refer to a single source for common Cisco network administration issues Dedicated section for network security aids administrators in effectively dealing with security issues Deploy fully functional RADIUS and TACACS+ for servers for controlling access to Cisco devices Deploy Linux- and Windows-based syslog servers to centrally collect syslog information generated by Cisco devices Deploy Linux- and Windows-based network monitoring systems to monitor interface traffic through Cisco devices including routers, switches, VPN concentrators, and Cisco PIX® firewalls Use the trending feature of network monitoring systems for long-term network analysis and capacity planning Automatically detect and report configuration changes on Cisco IOS® Software-based devices and Cisco PIX firewalls Deploy Cisco-based VPNs in mixed environments using Linux- and Windows-based VPN servers Network Administrators Survival Guide solves many common network administration problems by providing administrators with an all-in-one practical guide to supporting Cisco® networks using freeware tools. It is a single reference source that explains particular issues, their significance for administrators, and the installation and configuration process for the tools. The solutions are Cisco centric and provide detail not available in generic online information. Network Administrators Survival Guide emphasizes solutions for network managers and administrators of small to medium-sized businesses and enterprises. Each chapter is broadly based on a network administration function, starting with an overview of the topic, followed by the methodology involved to accomplish that function. This includes the tools available, why they are the right choice, and their installation, configuration, and usage methods. For any given function, Network Administrators Survival Guide covers both Windows- and Linux-based tools as appropriate. Most of the Windows-based tools offer the advantage of GUI for ease of use, whereas the Linux-based tools are command-line based and can be used in automated scripts. Both are significant for network administrators. Based on author Anand Deveriya’s extensive field experience, this practical guide to maintaining Cisco networks will save you significant time and money. Any network administrator—beginner or advanced—will find this book useful. The solutions to practical aspects of network administration make Network Administrators Survival Guide a must-have reference for supporting your Cisco network.

This "survival guide" provides detailed information on everything needed to make a system run smoothly, from the physical components of the environments to administration, optimizing, tuning, and maintaining each system.

If you haven't worked with T1 before, you could be in for an unpleasant surprise. If you have, you'll already know that T1, the current network standard for business and professional Internet access, is neither efficient, easy to use, nor particularly well-suited to data transmission. T1: A Survival Guide, a practical, applied reference on T1 data transport, is a life raft for navigating the shoals of a 40-year-old technology originally designed for AT&T's voice network.Throughout T1's long life, network administrators have mainly learned it by apprenticeship, stumbling on troubleshooting tidbits and filing them away until they were needed again. This book brings together in one reference the information you need to set up, test, and troubleshoot T1.T1: A Survival Guide covers the following broad topics: What components are needed to build a T1 line, and how those components interact to transmit data effectively How to use standardized link layer protocols to adapt the T1 physical layer to work with data networks How to troubleshoot problems and work with the telephone company, equipment manufacturers, and Internet service providers In spite of its limitations, T1 is a proven, reliable technology that currently meets the need for medium-speed, high reliability Internet access by institutions of many sizes, and it's likely to be around for a while. T1: A Survival Guide will take the guesswork out of using T1 as a data transport.

You probably suspect, on some level, that computers might be hazardous to your health. You might vaguely remember a study that you read years ago about miscarriages being more frequent for data entry operators. Or you might have run into a co-worker wearing splints and talking ominously about Workers' Comp insurance. Or you might notice that when you use a computer too long, you get stiff and your eyes get dry.But who wants to worry about such things? Surely, the people wearing splints must be malingerers who don't want to work? Surely, the people who design keyboards and terminals must be working to change their products if they are unsafe? Surely, so long as you're a good worker and keep your mind on your job, nothing bad will happen to you?The bad news is: You can be hurt by working at a computer. The good news is that many of the same factors that pose a risk to you are within your own control. You can take action on your own to promote your own health -- whether or not your terminal manufacturer, keyboard designer, medical provider, safety trainer, and boss are working diligently to protect you.The Computer User's Survival Guide looks squarely at all the factors that affect your health on the job, including positioning, equipment, work habits, lighting, stress, radiation, and general health.Through this guide you will learn: a continuum of neutral postures that you can at utilize at different work tasks how radiation drops off with distance and what electrical equipment is responsible for most exposure how modern office lighting is better suited to working on paper than on a screen, and what you can do to prevent glare simple breathing techniques and stretches to keep your body well oxygenated and relaxed, even when you sit all day how reading from a screen puts unique strains on your eyes and what kind of vision breaks will keep you most productive and rested what's going on "under the skin" when your hands and arms spend much of the day mousing and typing, and how you can apply that knowledge to prevent overuse injuries The Computer User's Survival Guide is not a book of gloom and doom. It is a guide to protecting yourself against health risks from your computer, while boosting your effectiveness and your enjoyment of work.

The next frontier for wireless LANs is 802.11ac, a standard that increases throughput beyond one gigabit per second. This concise guide provides in-depth information to help you plan for 802.11ac, with technical details on design, network operations, deployment, and monitoring. 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 LAN Explore how beamforming increases speed capacity by improving link margin, and lays the foundation for multi-user MIMO Learn how multi-user MIMO increases capacity by enabling an AP to send data to multiple clients simultaneously Plan when and how to upgrade your network to 802.11ac by evaluating client devices, applications, and network connections