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 …

Read more




Configure a reverse proxy with Apache on Ubuntu

Introducing the Reverse Proxy In this tutorial, I will explain how to configure a reverse proxy with Apache on Ubuntu (By adapting the Apache installation commands, this tutorial can easily be transposed to other distributions). Before getting into the technical part, let’s take a look at what a Reverse proxy is? A reverse proxy is …

Read more



Ubuntu: BusyBox solve UNEXPECTED INCONSISTYENCY error

In this tutorial, I will tell you how to resolve the UNEXPECTED INCONSISYENCY error when starting the computer in BusyBox mode. During a sudden shutdown with a disk access problem, it is possible that your Linux starts in BusyBox mode with a disk error and you have a prompt (initramfs) as shown in the screenshot …

Read more



Download GLPI from command line on Linux

In this tutorial, I will explain how to download GLPI from the command line with wget, unzip it and move it to the virtualhost folder. If you have a Web server under Linux with Nginx, this tutorial will allow you to install GLPI without needing to use a WinSCP type client or FTP server. 1. …

Read more



Ubuntu: add an LVM disk and volume

In this tutorial, I will explain how to add an additional disk to an Ubuntu machine and create a new LMV volume for this disk. To explain this tutorial, I will start from a concrete case, I have a virtual machine on Hyper-V where Ubuntu 22.04 is installed. There is a first disk which is …

Read more



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 …

Read more



How to display the list of users on Linux from the command line?

The easiest and fastest way to display the list of users from the command line on Linux is to read the file /etc/passwd. We could simply use: The return of this command is not easy to read, to do this we cut the result to have only the first part of each line which corresponds …

Read more



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 …

Read more



DUF: show available disk space on Ubuntu

In this tutorial, I will explain how to install duf to show available disk space on Ubuntu. DUF is a command line utility that allows you to view available disk space on Linux and Windows in a terminal. If you are used to using Linux, you probably know the following command: df -h which allows …

Read more



Ubuntu Server: configure the time zone

In this tutorial, I will explain how to configure the time zone called timezone on Ubuntu Server. Unlike the Desktop version, when installing the server version of Ubuntu, the time zone is not requested, which means that by default, Ubuntu is in the UTC (+0) time zone. In order to have the logs and scheduled …

Read more