'Service attack' diaporamas de présentation

CSCE 790: Computer Network Security. Chin-Tser Huang huangct@cse.sc.edu University of South Carolina. A Security Problem in Network. An adversary that has access to a network can insert new messages, modify current messages, or replay old messages in the network

CSE561: Graduate Computer Networking. Venkat Padmanabhan Microsoft Research. Prelimaries. Instructor: Venkat Padmanabhan Email: padmanab@cs.washington.edu Lectures: MF, 12:00-1:20 PM, EE1 003 Office hours: MF 1:30-2:00 PM, Sieg 226D TA: Andrew Whitaker Email: andrew@cs.washington.edu

CSC 539: Operating Systems Structure and Design Spring 2006. I/O management overview device controllers, interrupts and DMA disk scheduling reliability, RAID protection & security overview protection: domain structure, access matrix security: authorization, program threats & system threats

Chapter 15 – Cyber Operations. Part I. Cyber. “A failure by the Department to secure its systems in cyberspace would pose a fundamental risk to our ability to accomplish defense missions today and in the future.” - 2010 Quadrennial Defense Review

WORM PROPAGATION. Terry Griffin Sandeep Pinnamaneni Vandana Gunupudi. Agenda. Introduction Background Infamous Worms Benchmarks and Metrics Requirements Summary of Methods Conclusion. Introduction. What is a worm?

IPtables. Objectives to learn the basics of iptables Contents Start and stop IPtables Checking IPtables status Input and Output chain Pre and Post routing Forward of address and port Firewall standard rules Lading/Unloading kernel driver modules Connection tracking modules Practicals

Routing Protocols in MANETs. CS290F Winter 2005. What is a MANET. Mobile nodes, wireless links Infrastructure-less: by the nodes, … Multi-hop routing: …, and for the nodes Minimal administration: no hassles. What’s unique about a MANET ?. Moving nodes  ever changing topology

iPremier Company. GSB 522 Information Security The iPremier Company, Inc. iPremier Company. What is it like to be awakened the way Bob Turley is in the case? What are his impressions and experiences during the first few minutes after the telphone rings?

Introduction to Network Security. © N. Ganesan, Ph.D. Acknowledgements. Chapter Focus. Introduction to computer security Overview of security threats Outline of security measures Summary. Understanding the Threats. Vulnerability.

OPTWALL: A Hierarchical Traffic-Aware Firewall. Mehmud Abliz, Subrata Acharya, Bryan Mills, Taieb Znati University of Pittsburgh, PA. Albert Greenberg, Microsoft Research, WA Jia Wang, Zihui Ge, AT&T Research, NJ. Introduction

Hacking and its Defense. GROUP MEMBERS Chan Li Suman Lohani Prabhu Sundaram. Objective. Why this topic?? Surprising Facts on Hacking – U.S. Department of Defense is attacked some 250,000 times each year - Source: The Business Journal

Lock Up your Wireless LAN . By Aman Bhel. Internet Security Principles November 16, 2001. Agenda. Threats to your wireless LAN. Basic configuration of war driving. How to lock up your wireless LAN ?? Encryption Hazards. Why is there so much Wireless LAN hacking?? Conclusion.

IS Security. An Overview of Computer Security Benjamin Khoo, PhD New York Institute of Technology School of Management kkhoo@nyit.edu. Acknowledgement.

Authentication Technology Survey: Kerberos, LDAP, Client-side PKI and Other Solutions. Paul B. Hill Information Services and Technology Massachusetts Institute of Technology. Abstract.

Firewalls. What is a Firewall?. A choke point of control and monitoring Interconnects networks with differing trust Imposes restrictions on network services only authorized traffic is allowed Auditing and controlling access can implement alarms for abnormal behavior

Detecting Abnormal Traffic. Jennifer Rexford Fall 2010 (TTh 1:30-2:50 in COS 302) COS 561: Advanced Computer Networks http://www.cs.princeton.edu/courses/archive/fall10/cos561/. Intrusions. Intrusions Actions that attempt to bypass security mechanisms

Fighting the DDoS Menace!. http://vig.prenhall.com/catalog/academic/product/0,1144,0131475738,00.html. Recent High Profile DDoS Attacks. Protx (Online payments processing firm) : October 31 st WeaKnees.com, RapidSatellite.com (e-commerce) October 6 th

Lecture 11: Transport (UDP, but mostly TCP). CS 4700 / CS 5700 Network Fundamentals. Revised 7/27/2013. Transport Layer. Function: Demultiplexing of data streams Optional functions: Creating long lived connections Reliable, in-order packet delivery Error detection

Distributed Security Issues 2. CP3397 Design of Networks and Security. Objectives. To investigate Authentication techniques Authorisation techniques. Administration issues. Authentication. The process of establishing proof of identity at least two levels required:

RICH: Automatically Protecting Against Integer-Based Vulnerabilities. David Brumley dbrumley@cs.cmu.edu Tzi-cker Chiueh chiueh@cs.sunysb.edu Robert Johnson rtjohnso@cs.sunysb.edu Huijia Lin huijia@cs.cornell.edu Dawn Song dawnsong@ece.cmu.edu. Overview. Why integer bugs?