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Internet communication Technology ppt

internet and trends in communication technology ppt and computer communication networks ppt
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Published Date:08-07-2017
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June 2012 The views expressed in this presentation are those of the authors (CSFI managers and Paul de Souza, CSFI founder) and do not reflect the official policy or position of any US government agency, department, or service, or any other entity operating under the authorities or statutes of the U.S. government or any other government the U.S. does or does not recognize. This presentation's facts, information, and data contained herein are sourced from the public domain. Logos, slogans, trademarks, service marks, pictures, images, or any other form of intellectual property contained herein is protected from duplication without proper and legal consent from the data owner(s) for permission of use.  The student will be introduced to the concept of “Cyberspace”  The course will introduce the student to the concepts, architectures and technologies supporting Internet-related computer network operations.  This course covers computer network defense and attack vectors that could be utilized by an adversary.  The student will expect to learn about Defense-In-Depth strategy and how this can be applied to computer network defense by exploring real life and historical examples.  The student will also study the various layers that comprise the Defense-In-Depth strategy  To increase understanding about the underlying concepts, architectures, and technologies that enable computer network operations.  To increase understanding about computer network defense as it relates to computer network operations from monitoring to analysis, detection and response.  To increase knowledge about computer network attacks in regards to computer network operations.  To increase knowledge of the layered approach of Defense-In-Depth based on the principles of a solid information assurance posture.  To increase understanding in regards to information assurance as it pertains to network attacks and network defense measures.  What is “Cyberspace”  Cyberspace and computer network operations  Introduction to networking concepts, architectures and technologies supporting Internet-related computer network operations  Computer network operations and computer network defense  Defense-in-Depth (DID)  Various Layers/Elements of DID  Ensuring DID  Integrating Information Assurance into Environment  Discussion Questions  Summary and Sources “Cyberspace. A consensual hallucination experienced daily by billions of legitimate operators, in every nation, by children being taught mathematical concepts... A graphic representation of data abstracted from banks of every computer in the human system. Unthinkable complexity. Lines of light ranged in the nonspace of the mind, clusters and constellations of data. Like city lights, receding...” William Gibson, Neuromancer , 1984 “Man-made”-domain:  Operations (i.e., computer network operations (CNO)) analogous to operating in air or maritime domain  Cyberspace is “a global domain within the information environment whose distinctive and unique character is framed by the use of electronics and the electromagnetic spectrum to create, store, modify, exchange, and exploit information via interdependent and interconnected networks using information-communication technologies.” Daniel T. Kuehl “From Cyberspace to Cyberpower: Defining the Problem” Cyberpower and National Security, NDU Press, 2009  Networks, including hardware & software are militarily relevant- their counterparts in other domains: ships, vehicles, airplanes & satellites  Cyberspace traverses the physical domains or land, sea, air, and space through interconnected technological devices. Applications (Data) (Data) (Data) (Segments) Router (Packet/Datagram) Switch/Bridge (Frame) Hub (Bit)  Confidentiality  Integrity  Availability  Tier-1: transit-free network that peers w/ every other Tier-1 network  Tier-2: a network that peers w/ some networks but purchases IP transit or pays settlements to reach some portion of the Internet  Tier-3: a network that solely purchases transit form other networks to reach the internet CNO CND CNE CNA  “Comprised of computer network attack, computer network defense, and related computer network exploitation enabling operations.”  “Actions taken through the use of computer networks to disrupt, deny, degrade, or destroy information resident in computers and computer networks, or the computers and networks themselves” Outside of the Scope of this Course  “Enabling operations and intelligence collection capabilities conducted through the use of computer networks to gather data from target or adversary automated information systems or networks” Outside of the Scope of this Course  “Actions taken to protect, monitor, analyze, detect and respond to unauthorized activity within...information systems and computer networks” Why? Why?  Is a network/system a weapon?  What are the ramifications of using non-lethal systems in a way that could BE lethal?  “The sitting of mutually supporting defense positions designed to absorb and progressively weaken attack, prevent initial observations of the whole position by the enemy, and to allow the commander to maneuver the reserve”  Source: Department of Defense  Putting that idea into a cyber context...  Three Core Components  People  Technology  Operations  Not the same as redundant elements  Having multiple firewalls does not provide DID ▪ Just like having a single firewall does not equate to CND  Each element in a DID strategy must compliment the other elements