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Articles on Trending Technologies
Technical articles with clear explanations and examples
PacVim – A CLI Game to Learn Vim Commands
PacVim is an innovative CLI game that transforms learning Vim commands into an engaging Pac-Man-style experience. Instead of memorizing commands through traditional methods, players navigate through mazes while collecting pellets that represent different Vim operations, making the learning process both fun and effective. Vim has been a favorite of many programmers and Linux users for years due to its powerful features and flexibility. However, Vim's learning curve has often been a barrier for newcomers. PacVim addresses this challenge by gamifying the learning process, allowing users of all skill levels to master Vim commands through interactive gameplay. How PacVim ...
Read MoreHow to Brute-Force SSH in Kali Linux?
Secure remote access is essential for both organizations and individuals in today's connected world. For secure network communication and remote system administration, SSH (Secure Shell) has gained popularity. However, SSH servers can be subject to brute-force attacks that aim to compromise their security. This article provides a comprehensive overview of brute-forcing SSH in Kali Linux, a popular system for security analysis and penetration testing. Network administrators can strengthen their defenses and guarantee the integrity of their SSH servers by understanding the mechanics of these attacks, considering ethical implications, and implementing mitigation strategies. Note − This article aims to ...
Read MoreDifference between Hardware Interrupt and Software Interrupt
Interrupts are signals in the computer system that temporarily halt the CPU's current activities. When an interrupt occurs, the CPU shifts its focus to handle higher-priority tasks. These interrupts are essential for efficient system operation, allowing important events to be processed immediately while less critical tasks wait. There are two main categories of interrupts: hardware interrupts and software interrupts. What is Hardware Interrupt? A hardware interrupt is triggered by external or internal hardware components to signal events that require immediate CPU attention. These interrupts eliminate processor time wastage by allowing external devices to notify the CPU when they ...
Read MoreNTFS Junction Points
NTFS Junction Points are a type of symbolic link in the Windows NTFS file system that allow you to create directory-level links within the same volume. They act as transparent redirections, making one directory appear at a different location while the actual data remains in its original place. Junction points provide a powerful mechanism for file system organization, application compatibility, and efficient storage management without physically moving files or disrupting existing pathways. How Junction Points Work Junction points use reparse points, a special NTFS feature that intercepts file system operations and redirects them to another location. When ...
Read MoreParbegin / Parend Concurrent Statement
Parbegin/Parend is a concurrent programming construct used to specify parallel execution of multiple statements or processes. The parbegin keyword marks the beginning of a parallel block, while parend marks its end. All statements within this block execute concurrently rather than sequentially. How Parbegin/Parend Works When the processor encounters a parbegin statement, it creates separate execution threads for each statement within the block. These threads run simultaneously until all complete execution, at which point control moves to the statement following parend. Parbegin/Parend Execution Flow S1 ...
Read MoreNucleus Operating System
The Nucleus is an RTOS that was developed by Mentor Graphics Embedded Software Division, a Siemens Business that supports 32-bit and 64-bit embedded system platforms. The Nucleus operating system (OS) is mainly intended for use in real-time embedded systems in medical, aerospace, industrial, consumer, and Internet of Things (IoT) applications. In this article, we will explore Nucleus Operating System, its components, and features as well. Nucleus Operating System The Nucleus OS was initially introduced in 1993. The latest version, 3.x, offers various features, including 64-bit support, safety certification, power management, and a process model. It also supports ...
Read MoreMessage-based Communication in IPC(inter-process communication)
Message-based communication is a method of Inter-Process Communication (IPC) where processes exchange data by sending and receiving messages. In this communication model, the sending process creates a message containing the data to be shared and transmits it to the receiving process. The receiving process then retrieves the message and extracts the required information. This approach provides a clean abstraction for process communication, allowing processes to exchange data without sharing memory space directly. Message-based communication supports both synchronous (blocking) and asynchronous (non-blocking) communication patterns, making it suitable for various system architectures. How Message-based Communication Works ...
Read MoreParrot Operating System
Parrot OS is a free and open-source operating system built on Debian GNU/Linux, specifically designed for security professionals, privacy-conscious users, and developers. It comes pre-loaded with tools for penetration testing, digital forensics, cryptography, and privacy protection, making it a comprehensive platform for cybersecurity work. The operating system offers multiple editions including Home, Security, IoT, and Cloud variants to cater to different use cases. A standout feature is AnonSurf, a unique anonymization tool that helps users hide their internet activity and protect their identity online. Key Features Security Tools Parrot OS includes an extensive collection of pre-installed ...
Read MorePractical Examples of Linux xargs Command
The Linux xargs command is a powerful utility that reads items from standard input and executes commands using those items as arguments. It's particularly useful for automating tasks and processing large numbers of files efficiently. This command helps bridge the gap between commands that produce output and commands that need arguments. The xargs command is especially valuable when working with long lists of items or data, as it simplifies the process of executing commands on multiple items. With xargs, you can perform operations like copy, delete, compress, rename, and count on numerous files with a single command line. ...
Read MoreHow to Monitor Ubuntu Performance Using Netdata?
Monitoring the performance of your Ubuntu system is crucial for maintaining its stability, identifying bottlenecks, and ensuring optimal resource utilization. Netdata is a powerful real-time monitoring tool that provides an intuitive web interface and comprehensive system metrics tracking capabilities. This article will guide you through installing Netdata on Ubuntu, monitoring essential system metrics, and configuring custom alerts to maintain optimal server performance. Installing Netdata on Ubuntu Netdata installation on Ubuntu is straightforward. Follow these steps to get started − Update System Packages Before installing Netdata, update your system packages to the latest versions − ...
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