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Learning Network Forensics

Learning Network Forensics

By : Datt
1.5 (2)
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Learning Network Forensics

Learning Network Forensics

1.5 (2)
By: Datt

Overview of this book

We live in a highly networked world. Every digital device—phone, tablet, or computer is connected to each other, in one way or another. In this new age of connected networks, there is network crime. Network forensics is the brave new frontier of digital investigation and information security professionals to extend their abilities to catch miscreants on the network. The book starts with an introduction to the world of network forensics and investigations. You will begin by getting an understanding of how to gather both physical and virtual evidence, intercepting and analyzing network data, wireless data packets, investigating intrusions, and so on. You will further explore the technology, tools, and investigating methods using malware forensics, network tunneling, and behaviors. By the end of the book, you will gain a complete understanding of how to successfully close a case.
Table of Contents (12 chapters)
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11
Index

Collecting network traffic using tcpdump

Tcpdump is a command-line tool that runs on various flavors of Linux. It can be used for network traffic packet capture and analysis. It is a free tool that is distributed under the Berkeley Software Distribution (BSD) license.

Tcpdump requires the libpcap library to capture packets. Tcpdump has also been ported to Windows. In this avatar, it requires the WinPcap library, which is a port of libpcap for Windows.

Tcpdump is a great tool to learn about the traffic on your network in a more hands-on way. Though tcpdump requires more inputs from the user vis-à-vis higher analysis tools such as Wireshark, it really increases your fundamental understanding of the TCP/IP suite. Any security professional getting in the network forensics domain must understand the data in its raw form.

Tcpdump also provides the option to save the captured network traffic (packets) to a .pcap format file for future analysis.

From a learning perspective, we will use tcpdump...

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Learning Network Forensics
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