Arquivos Servers » Simplificando Redes

How to Set Up a Postfix and Dovecot Email Server on Linux: A Step-by-Step Guide

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 […]

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Build Your Own DNS Server: A Step-by-Step Guide using BIND9

Network, Servers

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

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Tutorial for SSH Public Key Authentication

Network, Servers

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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How to use Ngrok

Network, Servers

We will present a tutorial to install Ngrok and how to use Ngrok on Windows and Linux machines.

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Install ubuntu 24 on virtualbox

Servers, VirtualBox_en

In this tutorial we will teach you how to install Ubuntu 24 on a VirtualBox virtual machine.

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How to X11 Forwarding using SSH

Servers

We will show how to do X11 Forwarding with SSH using two Linux machines. Our goal is to run an x11 application on a remote machine.

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Install SSH server Windows 11

Servers

This is a tutorial that teaches you how to install and configure an SSH server on a Windows 11 machine.

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How DNS works

Network, Protocol, Servers

Let’s introduce what DNS is, its basic operation and how a DNS query works.

How DNS works Read More »

Squid Proxy for Linux Installation and Configuration

Network, Proxy_en, Servers

We present the configuration and installation of Squid Proxy. We use practical examples of blocking by domains, time and URLSs.

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