Book Image

Learning Network Forensics

By : Samir Datt
Book Image

Learning Network Forensics

By: Samir 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 (17 chapters)
Learning Network Forensics
About the Author
About the Reviewers

Getting proxies to confess

Proxies are a very important component of any network. A proxy acts as an intermediary between other computers of the network and the Internet. In simple terms, this means that all the traffic entering or leaving the network should pass through the proxy server. Looking back at our previous chapter, we recall that logs can be a forensic investigator's best friend. Proxy servers can generate such logs that we can use for our investigations.

Roles proxies play

Proxy servers are usually deployed with a number of end objectives in mind. They can be used for the following:

  • Sharing a network connection on a local area network: Here, multiple users can share a single Internet connection.

  • Speeding up web access: This shared Internet connection that is accessed via a proxy allows the proxy to cache regularly demanded pages such as Google. This enables the server to immediately deliver a page that is in the cache, speeding up the web access.

  • Reducing band width usage: This...