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Articles by Pranavnath
Page 15 of 39
What is Display Filter Macros in Wireshark?
Within the domain of network analysis and packet inspection, Wireshark stands as a powerful and widely-used tool. One feature that significantly enhances Wireshark's functionality is the use of display filter macros, which streamline the process of filtering and focusing on specific packets of interest within captured network traffic. What are Display Filter Macros? Display filter macros are pre-defined, reusable filter expressions that act as custom shortcuts for filtering specific types of network traffic. They encapsulate complex display filter expressions under a single name, allowing users to invoke them quickly without repeatedly typing lengthy filter syntax. Instead of ...
Read MoreChallenges in Mobile Devices?
Mobile devices store vast amounts of personal and sensitive information including photos, documents, financial data, and communication records. Mobile device security challenges encompass threats from malicious applications, network vulnerabilities, web-based attacks, and physical security risks. As mobile devices become central to both personal and professional activities, understanding and addressing these security challenges is crucial for protecting sensitive data and maintaining privacy. Mobile Device Security Challenges Application Threats Malware Data theft Network ...
Read MoreComputer Security and its Challenges
Computer Security refers to the protection of computer systems, networks, and digital information from unauthorized access, theft, damage, or disruption. In today's interconnected world, where businesses and individuals rely heavily on digital systems, ensuring robust computer security has become critical. Consider a common scenario: a user downloads a seemingly harmless application from an untrusted source. Unknown to them, this application contains malware that can steal personal data, corrupt files, or provide unauthorized access to cybercriminals. Such incidents highlight why comprehensive security measures are essential for protecting our digital assets. What Is Computer Security? Computer security encompasses the ...
Read MoreAdvantages and Disadvantages of Hub
A hub is a basic networking device used to connect multiple devices in a network. It operates at the physical layer of the OSI model and functions as a multiport repeater, receiving data from one device and broadcasting it to all connected ports. Hubs use fiber optic or twisted pair cables and work in half-duplex mode, meaning data can only flow in one direction at a time. Hub Network Topology HUB PC1 PC2 PC3 ...
Read MoreAdvantages and Disadvantages of Mesh Topology
Mesh topology is a network topology where every node is directly connected to every other node in the network. This creates a web-like structure that provides exceptional redundancy and fault tolerance, making it suitable for mission-critical applications that require continuous network availability. Mesh Topology Structure A B C D Every node connects to every other ...
Read MoreGoals of Networks
In today's digital era, networks serve as the backbone of modern communication, connecting people, organizations, and devices across the globe. A network enables the transfer of data, voice, and multimedia signals between entities while maintaining essential security standards. Regardless of their topology—whether mesh, star, or ring—all networks share fundamental objectives that define their purpose and effectiveness. The goals of networks represent the core requirements that ensure networks deliver reliable, secure, and efficient communication services. These objectives focus on maintaining data authenticity, integrity, accessibility, and protection throughout the transmission process. Primary Goals of Networks ...
Read MoreElements of Network Protocol
Computers perform operations based on commands received. The set of commands or rules is sent and processed by the network protocol. In networks, different types of computers are connected which may possess different hardware and software components. Therefore, it is necessary to enable computers of different types to communicate with each other using common rules established by network protocols. Network Protocol A network protocol provides a set of rules to be followed for data transmission in a secure and reliable way. Examples of network protocols include SMTP (Simple Mail Transfer Protocol) for email communication and FTP (File Transfer ...
Read MoreRansomware Explained: How It Works And How To Prevent It
Ransomware is a type of malicious software (malware) that encrypts a victim's files and demands payment, typically in cryptocurrency, for the decryption key. This cyber threat has become one of the most dangerous and costly forms of cybercrime, affecting individuals, businesses, and government organizations worldwide. According to cybersecurity research, ransomware attacks have increased dramatically, with 91% of attacks originating from phishing emails. The global impact is staggering, with thousands of ransomware incidents reported annually, causing billions of dollars in damages and business disruption. How Ransomware Works Ransomware follows a predictable attack pattern that unfolds in several stages: ...
Read MoreTop 10 Social Network Analysis Tools To Consider
Social Network Analysis (SNA) is a method used to analyze social relationships and structures resulting from social network interactions. It applies network theory to model and analyze social systems, providing insights into both individual behavior and community connectivity patterns. SNA tools offer significant advantages when researching communities, enabling researchers to observe individuals and their connections within a unified framework. These tools help identify influential nodes, communication patterns, and structural properties of social networks. Social Network Analysis Visualization ...
Read MoreTransparency of RPC in Distributed Networks
In distributed networks, communication between different nodes is essential for achieving desired functionality. Remote Procedure Call (RPC) enables this communication by allowing programs to execute procedures on remote servers as if they were local. However, the success of distributed networks often depends on RPC transparency. RPC can be defined as a function call used by one program to request services from another program, where these programs may be located on different systems across the network. RPC Transparency in Distributed Networks Client Node Application Program A ...
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