It's easy enough to install Wireshark and begin capturing packets off the wire–or from the air. But how do you interpret those packets once you've captured them? And how can those packets help you to better understand what's going on under the hood of your network? Practical Packet Analysis shows how to use Wireshark to capture and then analyze packets as you take an indepth look at real-world packet analysis and network troubleshooting. The way the pros do it.
Wireshark (derived from the Ethereal project), has become the world's most popular network sniffing application. But while Wireshark comes with documentation, there's not a whole lot of information to show you how to use it in real-world scenarios. Practical Packet Analysis shows you how to:
Use packet analysis to tackle common network problems, such as loss of connectivity, slow networks, malware infections, and more
Build customized capture and display filters
Tap into live network communication
Graph traffic patterns to visualize the data flowing across your network
Use advanced Wireshark features to understand confusing packets
Build statistics and reports to help you better explain technical network information to non-technical users
Because net-centric computing requires a deep understanding of network communication at the packet level, Practical Packet Analysis is a must have for any network technician, administrator, or engineer troubleshooting network problems of any kind.
Technical review by Gerald Combs, creator of Wireshark.
As recent events demonstrate, the manifestations of Islamist extremism in Europe are manifold. They range from youngsters who reject both government and academic attempts at multiculturalism to radical imams who influence their congregations against their host countries to fundamentalist converts who believe the West is on a crusade to destroy Islam. Chat rooms on the Internet are used with powerful effect to proselytize, recruit, radicalize, fund raise, train, and plot acts of terrorism. In part to counter violent Islamist extremism, the U.S. National Intelligence Strategy seeks to: (1) develop innovative ways to penetrate and analyze the most difficult targets ; and (2) strengthen analytic expertise, methods, and practices; tap expertise wherever it resides; and explore alternative analytic views. Consequently, the director of national intelligence has given top priority to enhancing outreach to the myriad sources of expertise and open source information that can play a decisive role in countering threats such as terrorism. Over the past year, the CSIS Transnational Threats Project operated and tested a global Trusted Information Network (TIN) devoted to critical threat issues demonstrating that structured interaction with nongovernmental experts on the periphery can provide innovative, alternative analysis and perspectives. Islamist extremism in Europe was explored by the TIN s internationally recognized experts, even as daily events in Europe illustrated that al Qaeda inspired terrorists continue to proliferate among Muslim communities there. TIN members, in a collaborative online setting, contributed fresh information and perceptions about the extremists route to violence and their aspirations. This report reviews the workings of the CSIS network and demonstrates the contribution such a TIN can make as a force multiplier for intelligence in the information age.
Technology is an essential part of society in the Information Age. Warfare has always had a technological dimension. In the era of information and the interconnected world, the critical infrastructure of nations has become increasingly reliant upon computer networks: by using the methods of computer network attacks many critical functions of a State could be damaged. This has raised a discussion related to States' national and economic security concerning a new battlefield, warfare in cyberspace.
This report surveys one new facet of technology: computer network attacks, from the framework of the law of armed conflict by asking if the existing law of armed conflict, the main parts of which have their origins in the legacies of two World Wars, applies to computer network attacks. Moreover, the report addresses the questions of the perpetrators of the computer network attacks in the context of the law of armed conflict, what targets can be attacked with the means and methods of computer network attacks and how these attacks should be conducted under the laws of armed conflict.
The information infrastructure–comprising computers, embedded devices, networks and software systems–is vital to operations in every sector. Global business and industry, governments, and society itself, cannot function effectively if major components of the critical information infrastructure are degraded, disabled or destroyed.
This book contains a selection of 27 edited papers from the First Annual IFIP WG 11.10 International Conference on Critical Infrastructure Protection.