Proxmox: installing a Hypervisor

In this tutorial, I will explain how to install Proxmox on a physical server. I used a DELL server and performed the installation through the iDRAC console. Regarding the configuration of the server, it has 2 CPUs, 32GB of RAM and 8 hard drives. The disk configuration is as follows: To get started, download Proxmox …

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Nginx: configuration as reverse proxy

In this tutorial dedicated to Nginx, I will explain how to configure it in order to have a reverse proxy. Before getting to the heart of the matter, I will quickly introduce you to Nginx and what a reverse proxy. For this tutorial, I used an Ubuntu 20.04 machine. Introducing Nginx Nginx is a web …

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Hyper-V Cluster: Installation and Configuration

Introduction Through this tutorial, we will see how to set up a Hyper-v cluster under Windows Server (2012R2 / 2016/2019) step by step. Each step requires it, will take you on a tutorial to guide you in setting up a Hyper-V cluster. Prerequisites Be in an Active Directory environment, ideally having a server-side domain controller …

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Veeam: Configuring Virtual Machine Replication

In this tutorial, we will see how to set up and use replication in Veeam Backup & Replication. Before you begin, the source 1 and destination 2 servers must be added to the Veeam console. The article presents a Microsoft Hyper-V environment, setting up replication with VMware is almost identical. Configuring the replication job From …

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Active Directory: setting up a third-party system (tiering)

In this tutorial, I will explain how to configure a tiering system in an Active Directory environment, more specifically how to configure group policies (GPOs). This tutorial is not a complete guide to setting up tiering, but it does explain the basic GPOs you need to set up. This tutorial is not a complete guide …

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Active Directory: Create a group in PowerShell

In this tutorial, we will see how to create an Active Directory group from a domain controller in PowerShell using the New-ADGroup cmdlet. Syntax to create a group in PowerShell: Example: Create the SysAdmin group in the OU Groups which is located in the OU IT. Create a group in Active Directory using PowerShell Ouvrir …

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SSH: Resolve error: Warning: unprotected private key file!

In this tutorial, I will explain how to resolve the following error : Warning: unprotected private key file! when you try to SSH from Linux to another SSH server with a private key set. When you try to connect via ssh with a private key, you get this message: Chances are you created the file …

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Telnet: Test an SMTP server and send an email

In this tutorial, I will explain how to send an email by telneting into an SMTP server. This manipulation is regularly used to test the correct functioning of an SMTP server. If you simply want to use Telnet to test a service you can read this tutorial: Using the Telnet client to test a network …

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Docker: Clean up and free up disk space

In this tutorial, I’ll walk you through how to clean up Docker to free up disk space on your server or computer. Even though Docker container images don’t necessarily take up a lot of space, Docker can take up a significant amount of space on a computer, especially when: After a while, you can have …

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Windows Update: Optimizing update distribution

Presentation of Distribution Optimization Since Windows 10 and available on Windows Server 2019, it is possible to optimize the distribution of Windows updates by using a peer-to-peer (P2P) system between computers on the same network (and even on the Internet) for downloading updates. This system avoids having to search for updates on the Internet each …

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Configure WSUS to have computers download updates from Microsoft

In this tutorial, I will explain how to configure WSUS so that computers download updates directly from the Microsoft website and not from your WSUS server. This configuration has the advantage of reducing the disk space required for storing updates, but at the cost of putting more strain on your internet connection. The timing of …

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Install PHP with IIS on Windows Server 2025

After seeing how to install IIS on Windows Server 2025, we will move on to installing PHP on it. This tutorial should work on earlier versions of Windows Server and second point: I advise you not to install PHP on IIS and more generally on Windows, which cannot provide good application performance and which is …

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Windows 11: Install WSL to run Linux on Windows

In this tutorial, I will explain how to install WSL (Windows Subsystem for Linux) on Windows 11 to allow you to run a Linux distribution (Ubuntu) directly on Windows. WSL (Windows Subsystem for Linux) allows you to run a distribution like Linux under Windows (10 and 11) under dual boot. This feature allows you to …

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