In this practical tutorial, I will show you how to create a simple switch network using the Cisco Packet Tracer simulator, one of the most commonly used tools in network teaching. If you are taking the first steps in the world of computer networks or need to review essential concepts for certification, this post is […]
In this article, we will see the main reasons for considering the use of Kali Linux in a virtualized environment and how it can boost your learning and work on cybersecurity tests. Kali Linux is undoubtedly one of the most popular distributions for professionals and information security enthusiasts. By choosing to run it inside a
Why use Kali Linux inside VirtualBox? Read More »
Today we will learn how to install pfBLocker NG in PFSense. pfBLocker is an excellent tool for restricting unwanted traffic and filtering content on your network. pfBlocker NG is a powerful content blocker for pfSense that goes far beyond a simple ad blocker. This tool allows you to implement blocklists of malicious IPs, filter unwanted
How to install pfBlocker on pfSense: step by step guide Read More »
Are you ready to take the first step into the fascinating world of computer networks? In this step-by-step and super easy tutorial, we will use Packet Tracer, Cisco’s network simulator, to create your first functional network. We will start from scratch, setting up a basic network with just 2 computers. Don’t worry about complex technical
Packet Tracer for Dummies: Setting Up Your First Network with 2 PCs (Quick Start Guide) Read More »
Today we are going to learn about the curl command in Linux! This command is an incredibly versatile and powerful tool that goes far beyond simply downloading web pages. We will explore the functionalities of curl and discover a universe of possibilities for interacting with the internet and automating tasks. In the next sections, we
Learn how to use the curl command: tutorial with practical examples Read More »
Welcome to the ultimate guide for beginners who want to learn how to install Kali Linux on VirtualBox! If you’re taking your first steps into the world of information security, penetration testing, or simply want to explore the powerful Kali Linux operating system in a safe environment, you’ve come to the right place. In this
How to Install Kali Linux on VirtualBox: Step-by-Step Guide for Beginners Read More »
When you start programming in Python, one of the first challenges you might face is how to manage the libraries (or “packages”) you will need in your projects. This is where package managers come into play, aiming to facilitate the installation, updating, and removal of libraries, keeping your development environment well-organized. Below, I present an
Python Package Managers: Pip and Conda – A Complete Beginner’s Guide Read More »
CGNAT most often uses the range of IP addresses reserved for private use in the context of local networks, specifically the range “100.64.0.0 to 100.127.255.255,” which is part of the block known as “Shared Address Space.” Defined by RFC 6598, this range is used by Internet Service Providers (ISPs) in CGNAT (Carrier-Grade Network Address Translation)
The WHOIS or RDAP service is an essential tool for obtaining information about domains, IPs, and DNS records. In this tutorial, we will learn how to use WHOIS/RDAP. Difference Between WHOIS and RDAP WHOIS is a communication protocol that allows you to obtain information about a domain, IP, or DNS record. The service is maintained
Tutorial: How to use WHOIS and RDAP Read More »
This is a tutorial that will present a basic configuration of an email server using Postfix and Dovecot. The idea here is to configure an email server to enable sending and receiving emails among internal clients. Because it is an asynchronous communication, email is ideal for communications in which a user does not need to
How to Set Up a Postfix and Dovecot Email Server on Linux: A Step-by-Step Guide Read More »
