Designing Information Systems and Network Components for Situational Awareness

2012 ◽  
pp. 104-123
Author(s):  
Cyril Onwubiko
Keyword(s):  
Information Systems ◽  
Complex Networks ◽  
Computer Networks ◽  
Situational Awareness ◽  
Computer Network ◽  
Distributed Services ◽  
Network Applications ◽  
Systems Software ◽  
Design Requirements

Operators need situational awareness (SA) of their organisation’s computer networks and Information Systems in order to identify threats, estimate impact of attacks, evaluate risks, understand situations, and make sound decisions swiftly and accurately on what to protect against, and how to address incidents that may impact valued assets. Enterprise computer networks are often huge and complex, spanning across several WANs and supporting a number of distributed services. Understanding situations in such dynamic and complex networks is time-consuming and challenging. Operators SA are enhanced through a number of ways, one of which is through the use of situation-aware systems and technology. Designing situation-aware systems for computer network defence (CND) is difficult without understanding basic situational awareness design requirements of network applications and systems. Thus, this chapter investigates pertinent features that are foundation, essential, and beneficial for designing situation-aware systems, software, and network applications for CND.

TCP/IP Protocol-Based Model for Increasing the Efficiency of Data Transfer in Computer Networks

2013 ◽  
pp. 116-134
Author(s):  
S.N. John ◽  
A.A. Anoprienko ◽  
C.U. Ndujiuba
Keyword(s):  
Simulation Model ◽  
Computer Networks ◽  
Computer Network ◽  
Data Transfer ◽  
Basic Method ◽  
Imitation Model ◽  
Corporate Networks ◽  
Network Applications ◽  
Modern Computer ◽  
Model And Simulation

This chapter provides solutions for increasing the efficiency of data transfer in modern computer network applications and computing network environments based on the TCP/IP protocol suite. In this work, an imitation model and simulation was used as the basic method in the research. A simulation model was developed for designing and analyzing the computer networks based on TCP/IP protocols suite which fully allows the exact features in realizing the protocols and their impact on increasing the efficiency of data transfer in local and corporate networks. The method of increasing efficiency in the performance of computer networks was offered, based on the TCP/IP protocols by perfection of the modes of data transfer in them. This allows an increased efficient usage of computer networks and network applications without additional expenditure on infrastructure of the network. Practically, the results obtained from this research enable significant increase in the performance efficiency of data transfer in the computer networks environment. An example is the “Donetsk National Technical University” network.

Adaptive Visualization of Complex Networks with FocalPoint

2016 ◽  
Vol 60 (1) ◽  
pp. 233-237 ◽  
Author(s):  
Catherine Inibhunu ◽  
Scott Langevin
Keyword(s):  
Complex Networks ◽  
Cognitive Load ◽  
Situation Awareness ◽  
Operations Management ◽  
Computational Models ◽  
Situational Awareness ◽  
Computer Network ◽  
Global Network ◽  
Optimum Level ◽  
Information Structures

Maintaining situational awareness of a dynamic global computer network that consists of ten to hundreds of thousands of computers is a complex task for cyber administrators and operators looking to understand, plan and conduct operations in real time. Currently, cyber specialists must manually navigate complex networks by continuous cycles of overviews, drilldowns and manually mapping network incidents to mission impact. This is inefficient as manually maneuvering of network data is laborious, induces cognitive overload, and is prone to errors caused by distractive information resulting in important information and impacts not being seen. We are investigating “FocalPoint” an adaptive level of detail (LOD) recommender system tailored for hierarchical network information structures. FocalPoint reasons about contextual information associated with the network, user task, and user cognitive load to tune the presentation of network visualization displays to improve user performance in perception, comprehension and projection of current situational awareness. Our system is applied to two complex information constructs important to dynamic cyber network operations: network maps and attack graphs. The key innovations include: (a) context-aware automatic tailoring of complex network views, (b) multi-resolution hierarchical graph aggregation, (c) incorporation of new computational models for adaptive-decision making on user tasks, cost/benefit utility and human situation awareness, and (d) user interaction techniques to integrate recommendations into the network viewing system. Our aim is to have a direct impact on planning and operations management for complex networks by; overcoming information overload, preventing tunnel vision, reducing cognitive load, and increasing time available to focus on optimum level of details of the global network space and missions.

Information Security for Situational Awareness in Computer Network Defense

2012 ◽  
pp. 86-103
Author(s):  
Uri Blumenthal ◽  
Joshua Haines ◽  
William Streilein ◽  
Gerald O’Leary
Keyword(s):  
Information Security ◽  
Computer Networks ◽  
Situational Awareness ◽  
Computer Network ◽  
Network Defense ◽  
Physical Time ◽  
Human Endeavor ◽  
Ancient Times ◽  
Military Strength ◽  
Computer Network Defense

Situational awareness – the perception of “what is going on” – is crucial in every field of human endeavor, especially so in the cyber world where most of the protections afforded by physical time and distance are taken away. Since ancient times, military science emphasized the importance of preserving your awareness of the battlefield and at the same time preventing your adversary from learning the true situation for as long as possible. Today cyber is officially recognized as a contested military domain like air, land, and sea. Therefore situational awareness in computer networks will be under attacks of military strength and will require military-grade protection. This chapter describes the emerging threats for computer SA, and the potential avenues of defense against them.

Network Security System Implementation Using Raspberry Pi-Based Random Port Knocking Sent Via Telegram

2018 ◽  
Vol 7 (2) ◽  
pp. 61-67
Author(s):  
Iga Revva Princiss Jeinever
Keyword(s):  
High Risk ◽  
Network Security ◽  
Computer Networks ◽  
Computer Network ◽  
Security System ◽  
Raspberry Pi ◽  
System Implementation ◽  
The Right ◽  
Network Administrators ◽  
Ip Block

Computer networks are basically not safe to access freely. Security gaps in the network can be seen by irresponsible people with various techniques. Opening a port for access carries a high risk of being attacked by an attacker. In this connection, network administrators are required to work more to be able to secure the computer network they manage. One form of network security that is often used by network administrators in server management is through remote login such as ports on telnet, SSH, etc. A port that is always open is a network security hole that can be used by people who are not responsible for logging into the server. Focusing on these problems, in this study, Random Port Knocking is the right way and can be used to increase network security. With Random Port Knocking, the port will be opened as needed, the port will automatically change when it fails to log in more than three times and IP will automatically be blocked and access will not continue so that attacks on the network can be avoided and network security stability can be further improved. The final result of this research shows that the method applied in this research makes server safe. Because port randomization and IP block make irresponsible parties try harder to penetrate firewall walls.

Environmental Design Strategies for Building Egress

2002 ◽  
Vol 46 (9) ◽  
pp. 865-869
Author(s):  
Jake Pauls
Keyword(s):  
Situational Awareness ◽  
World Trade Center ◽  
Environmental Design ◽  
Design Strategies ◽  
Building Evacuation ◽  
Strategic Issues ◽  
Trade Center ◽  
Design Requirements ◽  
The Many ◽  
The Impact

The events of September 2001, 2001, plus the events' technical and political aftermath have helped to identify an unfortunate lack of research into building evacuation. The relative dearth of research is ironic given evacuation's central role in mitigation for a range of emergencies and its prominence in environmental design requirements in building codes and standards. The field of human factors has much to offer, for example, in a philosophical or strategic focus on human-centered design as well in more-prosaic issues such as exit stair width and handrail provision. Much of the available research addresses fairly low-level ergonomic issues such as exit stair width in relation to egress capacity and the impact on evacuation time. in addition to more-sophisticated research into the relatively simple issues, ahead lies more-difficult research relating to strategic issues and the provision of information to building occupants in emergencies, occupants' situational awareness generally, and the many social interactions—in seldom-considered environmental contexts—that are at the heart of major evacuations of large buildings such as in the case of the World Trade Center.

scholarly journals Cryptographic Key Management for Role-Based Access Control Model in Power System Computer Networks

2021 ◽  
Author(s):  
Celia J. Li
Keyword(s):  
Access Control ◽  
Power Systems ◽  
Power System ◽  
Computer Networks ◽  
Key Management ◽  
Computer Network ◽  
Role Based Access Control ◽  
Computationally Efficient ◽  
Efficient Operation ◽  
Role Based

This thesis research has successfully completed two developments: an efficient Power-system Role-based Access Control (PRAC) and a secure Power-system Role-based kEy management (PREM). The PRAC significantly increases the security of computer networks for power systems, and surmounts the challenges caused by typical security and reliability concerns due to current technological and political changes faced in the electricity power industry. The PREM is designed to support the efficient operation of the PRAC using one-way hash functions and utilizing their advantages of computationally efficient and irreversibility security. PRAC and PREM are not only developed for handling single local computer network domain, but also extended for supporting multiple computer network domains. A platform for the comprehensive assessment of PREM is established for the fast and economical assessment of the key management developed in this thesis research.

scholarly journals Cryptographic Key Management for Role-Based Access Control Model in Power System Computer Networks

2021 ◽  
Author(s):  
Celia J. Li
Keyword(s):  
Access Control ◽  
Power Systems ◽  
Power System ◽  
Computer Networks ◽  
Key Management ◽  
Computer Network ◽  
Role Based Access Control ◽  
Computationally Efficient ◽  
Efficient Operation ◽  
Role Based

This thesis research has successfully completed two developments: an efficient Power-system Role-based Access Control (PRAC) and a secure Power-system Role-based kEy management (PREM). The PRAC significantly increases the security of computer networks for power systems, and surmounts the challenges caused by typical security and reliability concerns due to current technological and political changes faced in the electricity power industry. The PREM is designed to support the efficient operation of the PRAC using one-way hash functions and utilizing their advantages of computationally efficient and irreversibility security. PRAC and PREM are not only developed for handling single local computer network domain, but also extended for supporting multiple computer network domains. A platform for the comprehensive assessment of PREM is established for the fast and economical assessment of the key management developed in this thesis research.

scholarly journals UPDATE THE COMPUTER NETWORK AT THE ENTERPRISE «MAGNETIK CORPORATION»

2019 ◽  
Vol 2 (54) ◽  
pp. 65-68
Author(s):  
G. Golovko ◽  
Ye. Chaika ◽  
M. Luchko
Keyword(s):  
Network Security ◽  
Subject Matter ◽  
Computer Network ◽  
Optimal Solutions ◽  
Star Topology ◽  
Network Applications ◽  
Local Computer ◽  
The Subject ◽  
Applied Knowledge ◽  
Local Computer Network

The subject matter of the article is the process of matching the optimal solutions for improving the local computer network. The purpose is to update the existing local computer network of the enterprise Magnetic Corporation. The task is to justify the opportunity for using various types of network applications and components. Having applied knowledge about the characteristics of each viewing items’ properties, the obtained results are used to enter them into a single network. To summarize the conclusions: in order to maximize network productivity the local computer network with a dedicated server was selected, i.e. star topology, that has led to an increase in network security and an increase in the speed of fixing problems in any workstation without affecting the overall network health.

Modelling Situation Awareness Information and System Requirements for the Mission using Goal-Oriented Task Analysis Approach

2014 ◽  
pp. 460-478
Author(s):  
Cyril Onwubiko
Keyword(s):  
Situation Awareness ◽  
Task Analysis ◽  
Situational Awareness ◽  
Computer Network ◽  
Valuable Insight ◽  
Test Scenario ◽  
Agent Oriented Software Engineering ◽  
Awareness Information ◽  
System Requirements ◽  
Security Test

This chapter describes work on modelling situational awareness information and system requirements for the mission. Developing this model based on Goal-Oriented Task Analysis representation of the mission using an Agent Oriented Software Engineering methodology advances current information requirement models because it provides valuable insight on how to effectively achieve the mission’s requirements (information, systems, networks, and IT infrastructure), and offers enhanced situational awareness within the Computer Network Defence environment. Further, the modelling approach using Secure Tropos is described, and model validation using a security test scenario is discussed.

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