Abstract This work develops and implements a simulation boundary designed to safeguard essential data assets using the application software GNS3. At the core of computer network security lies the Cisco ASA 5520 firewall, which segments the organization’s network into a demilitarized zone, encompassing an internal and external network. Within this demilitarized zone, web and FTP servers are set up. A network... This work develops and implements a simulation boundary designed to safeguard essential data assets using the application software GNS3. At the core of computer network security lies the Cisco ASA 5520 firewall, which segments the organization’s network into a demilitarized zone, encompassing an internal and external network. Within this demilitarized zone, web and FTP servers are set up. A network scan was conducted with the Zenmap utility to evaluate the effectiveness of the simulation boundary for critical data protection. Additionally, a stress test of the network was carried out using the hping3 utility. The measures taken to counter these simulated attacks were identified and documented. Read More Read Less

Abstract Computer forensics, which involves both software and technical skills, falls under the umbrella of engineering and technical expertise. It plays a crucial role in various computer-related fields, enabling the creation of a comprehensive evidence system. The significance of computer forensics is highlighted by the growing role of computers in today’s society. A significant portion of crimes and offences are carried... Computer forensics, which involves both software and technical skills, falls under the umbrella of engineering and technical expertise. It plays a crucial role in various computer-related fields, enabling the creation of a comprehensive evidence system. The significance of computer forensics is highlighted by the growing role of computers in today’s society. A significant portion of crimes and offences are carried out using computer technologies. The knowledge of computer hardware, software, and databases, especially in criminal and civil legal matters, is particularly valuable. The ongoing advancement of computer hardware and software makes the study of computer forensics one of the most intricate research areas. The community of open-source software developers is always developing packages of tools aimed at software and technical skills. The most well-known is the KaliLinux suite, while Cyborg Hawk Linux is often overlooked. Our research seeks to explore the functionalities of the Cyborg Hawk Linux tools. Read More Read Less

Abstract Recent years have seen a significant increase in the application of modeling-based methods and experimental techniques in the analysis of ICS systems. However, a common limitation of these approaches is the systematic examination of certain processes and events within the system at different stages of operation, using a logical framework. This often leads to various assumptions that are not necessarily... Recent years have seen a significant increase in the application of modeling-based methods and experimental techniques in the analysis of ICS systems. However, a common limitation of these approaches is the systematic examination of certain processes and events within the system at different stages of operation, using a logical framework. This often leads to various assumptions that are not necessarily logical to the ICS itself but rather a consequence of the specific mathematical tools used. It’s clear that a new strategy is urgently needed to overcome this limitation. This new strategy might involve operational analysis of computer performance, primarily relying on the application of ICS models that incorporate queues and requiring the analyst to understand the underlying principles of ICS operation at a logical level. This approach enables the evaluation of the system’s overall performance, which is influenced by numerous parameters, and these values are roughly estimated from measurements without the need for ICS equipment. Based on these estimates, the fundamental indicators of the ICS are determined, leading to decisions on how to organize the Control Program. The distinguishing feature of this method (known as the engineering approach) is its focus from an engineer’s perspective on the structure of the ICS, the processes and events it undergoes, especially when it’s necessary to break down the system; to highlight its complex structure, including the main frameworks and directions the IS is distributed, the sets of ISs and parameters that define these streams, the relationships between threads and their parameters, and the development of requirements for measuring these parameters. Read More Read Less