In this tutorial, we will see how to configure the size of systemd logs on an Ubuntu distribution. By default, the logs located in the /var/log/journal folder can take several gigabytes of disk space. As can be seen from the screenshot below, the logs take up 4 Giga of disk space. The configuration of the …
In this tutorial, I will explain how to easily install nano on Windows (Desktop and Server). If you regularly use Linux, you are certainly familiar with it, for those who do not know nano, it is a command line text editor and it must be said that sometimes it is missing on Windows, particularly when …
In a previous tutorial, I explained how to install and use Ansible to execute automatic actions on your Windows and Linux servers. Like all applications, Ansible is regularly updated and so to enjoy the latest features and bug fixes, you should also update Ansible. The “problem” when you go through the official repositories of distributions …
In this tutorial, I will walk you through how to install Docker and Docker Compose on Ubuntu and Debian. Installation of Docker and docker-compose from the official repositories Docker and docker-compose are part of the official repositories of both distributions (Ubuntu and Debian), so just run the two commands below: Installing Docker: Installing docker-compose: The …
In this tutorial, I will explain how to get the real IP address of visitors using CloudFlare services and an Nginx web server. What I will explain to you in this tutorial is valid when Nginx is used as a front-end web server or as a reverse proxy. By default, when using CloudFlare in Proxy …
In this tutorial, I will explain how to install xRDP in order to have a remote desktop server (or rather a service) on Ubuntu. The purpose of this installation is not to make a remote desktop farm so that several users can connect to it simultaneously, but to be able to take control of Ubuntu …
In this tutorial, I will explain how to convert a “normal” mailbox into a shared mailbox. The main difference between a user mailbox and a shared mailbox is that the latter is linked to an Active Directory user account which is deactivated, therefore more “secure”. The other interest is that these mailboxes do not need …
In this tutorial, I will show you how to display the contents of a text file (txt, yaml, php, vbs…) in a PowerShell window. In fact, it’s very simple, just use the Cmdlet Get-Content and specify the file name. Which give : If you are familiar with the cat command in Linux, you can also …
In this tutorial, I will explain how to send decision logs to Elasticsearch (ELK) so that you can create a dashboard to use the logs. What you need to achieve what described in the tutorial: Crowdsec version 1.2.x or higher an Elasticsearch server or an ELK stack Since version 1.2 of Crowdsec, a notification system …
In this “‘little” tutorial, I will explain how to view and analyze the space in the command line on Linux with ncdu. If you are adapted from WinDirStat or TreeSize on Windows, the ncdu utility on Linux allows you to have the “same” thing in a terminal. The first thing to do is to install …