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
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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 »
Remote access has become an essential tool for managing servers and desktops, enabling administrators and users to work efficiently from anywhere. Among the various tools available, VNC (Virtual Network Computing) stands out for its simplicity and versatility. In this guide, we’ll focus on install and configure TigerVNC, a robust and lightweight VNC server that is
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In this step-by-step guide, we’ll walk you through the entire process of setting up and configuring a custom DNS server using BIND9, allowing you to handle domain resolutions efficiently while gaining more control over your network’s security and performance. If you’re looking to take control of your network’s DNS (Domain Name System) management, building your
Build Your Own DNS Server: A Step-by-Step Guide using BIND9 Read More »
In this tutorial, we will teach you how to create and configure access to an SSH server using a public key. For this tutorial, we will use two virtual machines that are within the same network. However, the scenario used can be replicated for machines that are on other networks and even on the Internet.
Tutorial for SSH Public Key Authentication Read More »
Tutorial for creating a simple chat using UDP sockets in Python 3. The goal is to demonstrate unidirectional communication, where a client sends messages to a server. Learning to use sockets in python is a great way to combine programming knowledge and networks. Creating the chat in UDP. First we will show you how to
Socket UDP Python Chat Read More »
