Network Analysis Using Wireshark Cookbook (Anglais) Broché – 24 décembre 2013
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Description du produit
Présentation de l'éditeur
This book will be a massive ally in troubleshooting your network using Wireshark, the world's most popular analyzer. Over 100 practical recipes provide a focus on real-life situations, helping you resolve your own individual issues.
- Place Wireshark in your network and configure it for effective network analysis
- Configure capture and display filters to get the required data
- Use Wiresharks powerful statistical tools to analyze your network and its expert system to pinpoint network problems
Is your network slow? Are your users complaining? Disconnections? IP Telephony problems? Video freezes? Network analysis is the process of isolating these problems and fixing them, and Wireshark has long been the most popular network analyzer for achieving this goal. Based on hundreds of solved cases, Network Analysis using Wireshark Cookbook provides you with practical recipes for effective Wireshark network analysis to analyze and troubleshoot your network.
"Network analysis using Wireshark Cookbook" highlights the operations of Wireshark as a network analyzer tool. This book provides you with a set of practical recipes to help you solve any problems in your network using a step-by-step approach.
"Network analysis using Wireshark Cookbook" starts by discussing the capabilities of Wireshark, such as the statistical tools and the expert system, capture and display filters, and how to use them. The book then guides you through the details of the main networking protocols, that is, Ethernet, LAN switching, and TCP/IP, and then discusses the details of application protocols and their behavior over the network. Among the application protocols that are discussed in the book are standard Internet protocols like HTTP, mail protocols, FTP, and DNS, along with the behavior of databases, terminal server clients, Citrix, and other applications that are common in the IT environment.
In a bottom-up troubleshooting approach, the book goes up through the layers of the OSI reference model explaining how to resolve networking problems. The book starts from Ethernet and LAN switching, through IP, and then on to TCP/UDP with a focus on TCP performance problems. It also focuses on WLAN security. Then, we go through application behavior issues including HTTP, mail, DNS, and other common protocols. The book finishes with a look at network forensics and how to search and find security problems that might harm the network.
What you will learn from this book
- Configure Wireshark for effective network troubleshooting
- Set up various display and capture filters
- Use basic statistical tools that provide you with "who is talking" tables, conversations, and HTTP statistics
- Master both the standard and advanced features of IO graphs
- Use the expert system to pinpoint various types of events that might influence the behavior of your network
- Learn about Wi-Fi testing and how to resolve problems related to wireless LANs
- Explore performance issues in TCP/IP
- Explore failures due to delays and jitters in the network
- Find and resolve problems due to bandwidth, throughput, and packet loss
- Identify and locate faults in communication applications including HTTP, FTP, mail, and various other applications Microsoft OS problems, databases, voice, and video over IP
- Identify and locate faults in detecting security failures and security breaches in the network
Biographie de l'auteur
Yoram Orzach gained his Bachelor's degree in Science from the Technion in Haifa, Israel, and worked in Bezeq as a systems engineer in the fields of transmission and access networks from 1991 to 1995. In 1995, he joined Netplus from the Leadcom group as technical manager, and since 1999 he has worked as the CTO of NDI Communications (www.ndi-com.com), involved in the design, implementation, and troubleshooting of data communication networks worldwide. Yoram's experience is both with corporate networks, service providers, and Internet service provider's networks, and among his customers are companies such as Comverse, Motorola, Intel, Ceragon networks, Marvel, HP, and others. Yoram's experience is in design, implementation, and troubleshooting, along with training for R&D, engineering, and IT groups.
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Commentaires en ligne
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Comasini Antonio Valerio (WCNA)
Wireshark handles much of the tedious low level stuff. Like mapping from a hostname to the underlying IP address and capturing packets that have this address in their source or destination fields. The chapter on Layer 2 filters is as low level as you can get. Note importantly that Wireshark can analyse traffic on both IPv4 and v6 networks. IPv6 is finally starting to become common and Wireshark is already there, with extensive functionality.
The book and Wireshark together free you from having to know the detailed formatting of a v4 or v6 packet. The book goes straight into the recipes without bogging you down in many diagrams of the packet formats. The latter is more typical of earlier texts on IP and TCP where there was no software like Wireshark. Back then, such knowledge of formatting was needed by the reader because it was up to you to essentially write a rudimentary version of Wireshark.
The book walks up the protocol stack, starting with Layer 2. For example, a later chapter has recipes on http and DNS. So just like the early chapter on Layer 2, you can focus on the issues of analysis and problem solving without having to know low level details.
The book starts of with a general introduction to the traffic analysis and Wireshark in general. The next two section introduce the reader to BPF and display filter, and offer a wide set of practical examples. Then the book dives in the analysis tools in Wireshark and describes what they do and how they work. Once the reader had built up enough knowledge on the different tools, the book goes trough the different stack layers illustrating how to put together filters and tools to solve common network issues on the different layers.
One of nice things about this book is that it's self contained, you can read this book without having to look around for other network reference (e.g. protocol headers, SSL handshake, HTTP status code). It's nice to have everything in the same place, especially when you are dealing with the tons of standards and acronyms of the networking world.
I enjoyed reading this book and I highly recommended it both to people that are approaching Wireshark for the first time and for people that work with networks and are looking for a great and practical cookbook.
The structure of the recipes and the chapters, the widespread use of print screens, the references to web pages which enrich the knowledge of a specific subject, help both the reader without knowledge on wireshark, but also those who have a good knowledge of the instrument .
I found it very useful the references to specific cases of actual problems cause they gave me the chance to see not only the use of Wireshark and its instruments, but I also showed me an analytical approach to troubleshooting and very useful in this context the presence of links to sites where you can download analysis programs.
After reading this book I most certainly ideas clear on how to carry out the analysis of the problems that I face often at work
It covers all topics with a comprehensive and deep analysis of the various scenarios. It doesn’t leave you with a question mark, it covers all aspects in every topic it touches.
It is written in a methodology that goes from the bottom up. It takes you through the basic information and slowly goes up the scale and build up your knowledge.
It doesn't stop in providing the information, it gets you to actually practice what you learned and takes the theory to a hands-on experience. It simply takes you by the hand in gaining the knowledge you need just like if you sit in a class, make your notes and go through actual training practice. It is very rare to get this kind of feeling from technical books.
The book is written in a simple language that both professionals and non-professionals can understand and relate to.
The material is very well up to date with the latest technical terms and development in the network market.
To summarize, this is a very important book for technical network people, IT in general and surprisingly also regulatory and compliance people. It leaves you with the just the right amount of information you need in order to know what the regulations and standards out there talk about, and it makes your technical brain cells work and gives you the appetite to go out there and practice what you just read.