Introduction Access networks are means by which internet service providers (ISPs) provide internet connectivity to their customers. They are final part of infrastructure that connects end-users to internet. Access networks can be wired or wireless and have different characteristics that make them suitable for different applications. Wired Access Networks Wired access networks are a type of computer network infrastructure that uses physical cables or wires to connect devices to internet or a local network. They are typically installed in buildings or homes to provide a stable and reliable connection to internet or other devices within network. Wired access networks have ... Read More
SQL Injection is a common security vulnerability. It occurs when an attacker manipulates a web application's database queries by injecting malicious SQL code. One of the most critical areas for SQL Injection exploitation is the login page of an application. When a user enters their credentials, these inputs are typically used to construct a database query to verify the user’s identity. If the application does not properly sanitize these inputs, an attacker can bypass authentication by injecting SQL statements that modify the intended query, granting them unauthorized access. What is SQL Injection? SQL injection is a code injection technique that ... Read More
In today's digital world, cyber attacks are becoming increasingly sophisticated, and organizations must continuously monitor and improve their security measures. Penetration testing, commonly known as pen testing, is a crucial step in identifying vulnerabilities and weaknesses in an organization's systems, networks, and applications. One critical area that needs to be tested is the organization's Active Directory (AD). This article will discuss Active Directory pen testing, why it is essential, and some examples of AD vulnerabilities. What is Active Directory? Active Directory is a directory service developed by Microsoft for managing and organizing information about users, computers, and other resources in ... Read More
ExcelJS is a JavaScript library that provides a convenient solution for working with '.xlsx' files, allowing you to read, manipulate, and save data programmatically using Node.js. In this tutorial, we'll walk through the steps for reading from and writing to Excel files in Node.js using ExcelJS. You'll learn how to initialize a workbook, read data from existing Excel files, dynamically build new worksheets, and save updates. Each section includes practical examples to help you apply the concepts in real-world scenarios. Prerequisite You should have a basic understanding of JavaScript You should ... Read More
Introduction PPP (Point-to-Point Protocol) is a network protocol that allows communication between two devices over a point-to-point connection. It is a widely used protocol for establishing and managing Internet connections over dial-up, DSL, and other types of connections. PPP uses a variety of commands to configure and manage communication session between two devices. One such command is "ADD PPP" command. In this article, we will discuss ADD PPP command in PPP configuration, its significance, and various examples of its usage. What is ADD PPP Command? The ADD PPP command is a configuration command used to create a new PPP session ... Read More
In today's digitally connected world, security is a critical concern for organizations of all sizes. With rise of cyber attacks, it has become imperative to implement security measures that not only provide protection but also adapt to evolving threats. One such security measure is Adaptive Security Appliance (ASA). An Adaptive Security Appliance is a security device that is designed to protect network infrastructure by providing advanced security features such as firewall, VPN, and intrusion prevention system (IPS) capabilities. ASA offers a range of features that provide an effective defense against cyber threats, making it a popular choice for organizations seeking ... Read More
Multiplexing could be used in computer systems to transmit different signals or information streams over a single communication channel. It permits numerous clients or gadgets to share the same transmission medium proficiently. Importance on Multiplexing Channel sharing is vital in computer systems to optimize the utilization of accessible assets. It empowers numerous clients or applications to get to and transmit information simultaneously over a shared communication channel, driving them to move forward in productivity, cost-effectiveness, and adaptability. Advantages of Multiplexing ... Read More
In collaborative projects, it's often unnecessary to clone an entire Git repository. However, if you only need to work on one specific branch, then cloning just one branch can help save time, bandwidth, and storage. In this tutorial, I will explain what it means to clone a single branch in Git, why you might choose to do so, and the step-by-step methods to clone a single branch. Table of Contents Introduction to Git and Branches Why Clone a Single Branch? Prerequisites Cloning ... Read More
Git is a powerful version control system widely used for tracking changes in source code during software development. When working with Git, it’s essential to configure your user information, including your username and email, to ensure that your commits are attributed correctly. Additionally, setting up authentication credentials, such as a password, is crucial for securely accessing remote repositories. In this tutorial, I will walk you through the steps to set your Git username and password using Git Bash, helping you streamline your development workflow. What is Git Bash? Git Bash is a command-line interface that provides a Unix-like environment for ... Read More
Introduction Within the ever-evolving scene of cybersecurity, remaining educated approximately the most recent vulnerabilities and abuses is significant. As innovation progresses, so do the strategies utilized by cybercriminals to breach frameworks and compromise delicate information. The year 2023 has seen its reasonable share of vulnerabilities that have been misused by noxious actors. In this article, we are going dig into a few of the best-abused vulnerabilities of 2023, shedding light on the potential dangers they posture and the measures that can be taken to relieve them. Exploited Vulnerabilities of 2023 ChatGPT This vulnerability was distributed in Walk 2023 with a ... Read More