Distributed Denial of Service (DDoS) attacks are attempts to overwhelm a computer system in order to deny access by legitimate users. They are generally unstoppable, but there is a good deal of on-going research on methods to reduce their negative effects. This paper will deal with the design of a model that simulates such an attack. The simulation model is then used to study possible ways to defend against these attacks. Three experiments are run: 1) using a priority queue to sort messages from clients based on how many connections they have open on the server; 2) limiting the number of connections each client can create; and 3) having the server forcefully delete the oldest established connection, whenever its connection table becomes full. Results show that method 1 is totally ineffective while method 2 somewhat improves the overall performance of the system. However, method 3, combined with method 2, produces significantly improved performance against a DDoS attack.
Security analytics can be defined as the process of continuously monitoring and analyzing all the activities in your enterprise network to ensure the minimal number of occurrences of security breaches. Security Analyst is the individual that is qualified to perform the functions necessary to accomplish the security monitoring goals of the organization. This book is intended to improve the ability of a security analyst to perform their day to day work functions in a more professional manner. Deeper knowledge of tools, processes and technology is needed for this. A firm understanding of all the domains of this book is going to be vital in achieving the desired skill set to become a professional security analyst. The attempt of this book is to address the problems associated with the content development (use cases and correlation rules) of SIEM deployments.
A hands-on guide to Android forensics, from setting up the forensic workstation to analyzing key forensic artifacts
About This BookA professional, step-by-step approach to forensic analysis complete with key strategies and techniquesAnalyze the most popular Android applications using free and open source toolsLearn forensically-sound core data extraction and recovery techniques
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In the course of their 20+-year engineering careers, authors Brian Fitzpatrick and Ben Collins-Sussman have picked up a treasure trove of wisdom and anecdotes about how successful teams work together. Their conclusion? Even among people who have spent decades learning the technical side of their jobs, most haven’t really focused on the human component. Learning to collaborate is just as important to success. If you invest in the "soft skills" of your job, you can have a much greater impact for the same amount of effort.
The authors share their insights on how to lead a team effectively, navigate an organization, and build a healthy relationship with the users of your software. This is valuable information from two respected software engineers whose popular series of talks—including "Working with Poisonous People"—has attracted hundreds of thousands of followers.
Is the Internet erasing national borders? Will the future of the Net be set by Internet engineers, rogue programmers, the United Nations, or powerful countries? Whos really in control of whats happening on the Net? In this provocative new book, Jack Goldsmith and Tim Wu tell the fascinating story of the Internets challenge to governmental rule in the 1990s, and the ensuing battles with governments around the world. Its a book about the fate of one idea–that the Internet might liberate us forever from government, borders, and even our physical selves. We learn of Googles struggles with the French government and Yahoos capitulation to the Chinese regime; of how the European Union sets privacy standards on the Net for the entire world; and of eBays struggles with fraud and how it slowly learned to trust the FBI. In a decade of events the original vision is uprooted, as governments time and time again assert their power to direct the future of the Internet. The destiny of the Internet over the next decades, argue Goldsmith and Wu, will reflect the interests of powerful nations and the conflicts within and between them. While acknowledging the many attractions of the earliest visions of the Internet, the authors describe the new order, and speaking to both its surprising virtues and unavoidable vices. Far from destroying the Internet, the experience of the last decade has lead to a quiet rediscovery of some of the oldest functions and justifications for territorial government. While territorial governments have unavoidable problems, it has proven hard to replace what legitimacy governments have, and harder yet to replace the system of rule of law that controls the unchecked evils of anarchy. While the Net will change some of the ways that territorial states govern, it will not diminish the oldest and most fundamental roles of government and challenges of governance. Well written and filled with fascinating examples, including colorful portraits of many key players in Internet history, this is a work that is bound to stir heated debate in the cyberspace community.