Paperback: 280 pages
Publisher: No Starch Press; 2 edition (July 9, 2011)
Product Dimensions: 7 x 0.8 x 9.2 inches
Shipping Weight: 1.4 pounds (View shipping rates and policies)
Average Customer Review: 4.5 out of 5 stars See all reviews (79 customer reviews)
Best Sellers Rank: #97,819 in Books (See Top 100 in Books) #54 in Books > Computers & Technology > Networking & Cloud Computing > Networks, Protocols & APIs > Networks #90 in Books > Computers & Technology > Networking & Cloud Computing > Network Security #121 in Books > Textbooks > Computer Science > Networking
The book starts out with some requisite background knowledge about networking needed to understand the packets that will be analyzed. This will not make you a networking expert, but it is very informative for the newcomer and a great refresher for the oldies. After learning about the basics of networking and comparing layer 1, 2, and 3 devices, the book explains techniques for successfully sniffing traffic. The author does not steer clear of the valuable (but sometimes controversial) ARP Cache Poisoning and flood attacks that frequently work for sniffing through a switch.The author also compares WIreshark (the selected sniffing tool) to some of the others, and clearly explains why he made the choice to use Wireshark. Time is spent familiarizing the reader with using Wireshark, covering installation and usage. The author also discusses how to write filters for capturing and displaying, which is essential to properly use the tool to wade through all the clutter. Finally, the packets that are typically found on a network are discussed and analyzed. The author points out many useful things that can be discovered by zeroing in on things like client/server latency (at different points throughout the TCP handshake) DNS abnormalities, and strange packets.Also Security implications and intrusion detection are discussed, which I found to be extremely informative for the typical network administrator. FInally some real world scenarios are presented, at which point we examine real life packets to determine the cause of the network problems. This exercise was very helpful to tie in the previous knowledge with a practical hands on approach. Also much appreciated were the example packets.
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