Ubuntu 22.04: install Docker

In this tutorial, I will show you a script to install Docker and Docker Compose on Ubuntu 22.04. Today more and more applications are available in containers with Docker, I regularly have to install a new machine on Ubuntu and have to install Docker and Docker Compose. Personally, I prefer to install Docker from the …

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Ansible: installation, configuration and use with Windows and Linux

Ansible is open source multi-platform configuration management software (Linux, Windows, network equipment, etc.). In other words, Ansible will allow you to manage, deploy or even execute actions on a group of computers in a “single command line”. Actions / configuration are written to a YAML format file also called playbook. Through this tutorial, I will …

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Guacamole: manage access to your IT environment

In this tutorial, I will explain how to install Guacamole on Ubuntu, configure access to equipment and use it. Before starting the technique, I will first introduce you to Apache Guacamole and especially why to put it in place. What is Guacamole? No, I’m not going to talk about the avocado sauce recipe in this …

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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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Active Directory: installation and configuration of a domain controller

In this tutorial, we will see how to set up an Active Directory domain.

In summary, an Active Directory is a database (LDAP) that contains a set of objects (users, computers, etc.) and delivers several services:

Centralization of objects on the network in a single database
User Authentication
Rights management
Policy Application (GPO)

Proxmox: use ZFS as a storage system

In this tutorial, we will see how to use ZFS as a storage system on Proxmox. What is ZFS? Before starting this tutorial, we will see what ZFS (Zettabyte File System) is. In reality ZFS is a file system, but as you will see in its presentation, ZFS is much more than that, it is …

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Proxmox: quorum configuration with a cluster of 2 servers

In this tutorial, I will explain how to configure quorum with a Proxmox cluster composed of two servers. Before starting this tutorial, we will talk about Quorum. What is Quorum Here is a brief definition of Quorum: it is the minimum number of voters necessary in an assembly to make a decision. Transposed into computing …

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GLPI 10: automatic actions configuration

Dans ce tutoriel, je vais vous expliquer comment configurer les actions automatiques dans GLPI 10. Overview of automatic actions in GLPI To carry out certain background actions such as email notifications, collection of messages for ticket generation, various maintenance tasks, etc. GLPI 10 uses automatic actions also called cron. Automatic actions are executed with two …

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Proxmox: send an ISO to Proxmox

In this tutorial, I will explain to you how to upload an ISO to Promox so that you can use it to install an operating system on a virtual machine. When installing Proxmox, several storage spaces are created: To send an ISO to Proxmox, you have two solutions: In this tutorial, we will therefore use …

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Proxmox: configure multipath

In this tutorial, I will explain how to configure multipath on Proxmox. Generally, multipath is necessary when using a two-tier architecture for hypervisors with servers and SAN type storage (FC/iSCSI/… disk array). To ensure high storage availability, servers generally have several connections to the disk bay, what is called multipath in IT. On Proxmox when …

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Proxmox: use the integrated Firewall to secure virtual machines

In this tutorial, we will see how to use the Firewall functionality integrated into Proxmox to secure virtual machines and manage network flows. Presentation of the firewall in Proxmox Proxmox allows you to manage a Firewall at the Hypervisor level which allows you to manage network flows at the levels: This configuration can be done …

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Proxmox: partition a disk

In this tutorial, I will explain how to partition a disk on Proxmox and then assign the partitions to storage. In this tutorial, you can see that I have two “disks” sda and sdb. In fact, these are two virtual disks created on a RAID 5 disk group on the server itself. The sda disk …

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Proxmox: configure a cluster with Ceph storage

In this tutorial, I will explain how to configure a cluster with Proxmox in order to ensure high availability and storage management will be with Ceph in order to have a Hyperconverged virtualization environment. Presentation Before launching into the tutorial, I will cover a few points for newbies. Let’s start with hyperconvergence, traditionally the Clustering …

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Postfix: configure a mail relay (MTA) on Ubuntu

In this tutorial, I will explain to you how to install (it’s the easiest) and configure Postfix on Ubuntu as an email relay to send emails from applications, equipment (copier, switch, etc.). This type of server is often used in businesses to send emails from different equipment and software, even if you have an internal …

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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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