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
Tutorial how to Install and configure VNC on Ubuntu Read More »
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.
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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 »
Tutorial for creating a simple chat using TCP 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 TCP First, let’s show how to create a
Socket TCP Python make a chat Read More »
Over time, I have often come across the need to configure apt get to work behind a proxy in network labs. Today we will show you how to do this. apt get behind a proxy First, we will get the proxy address and the port that is being used. In our case, the proxy address
apt get behind proxy Read More »
Finding the perfect IDE is a personal journey that depends on various factors such as your preferences, project needs, and past experience. An IDE (Integrated Development Environment) is software that brings together a set of tools and resources designed to simplify code development and testing. Common features include a code editor, a compiler or interpreter,
Best IDE for Python? Read More »
In this tutorial, we will show you how to use a Python script to obtain metadata from images and PDFs.
Python get metadata from images and pdfs Read More »
