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Linux 24 May 2023 ⏱ 3 min

Ubuntu: enable the firewall and manage it with UFW

In this tutorial, I will explain how to activate the firewall on a computer with Ubuntu and manage it with UFW. UFW…

In this tutorial, I will explain how to display the members of an Active Directory group in PowerShell. I already see some…

In this tutorial, I will explain how to delete a mailbox on Exchange 2016/2019, without deleting the user who is linked to…

In this tutorial, I will explain how to configure a receive connector to send emails outside your organization from Exchange. You have…

In this tutorial, I will explain how to solve the error : WARNING : REMOTE HOST IDENTIFICATION HAS CHANGED. This error mainly…

In this tutorial, I will explain how to solve error 0x800f0954 with the PowerShell Add-WindowsCapability Cmdlet when trying to install a Windows…

Linux 22 Feb 2023 ⏱ 1 min

In this tutorial, we will see how to configure the size of systemd logs on an Ubuntu distribution. By default, the logs…

Nginx 15 Feb 2023 ⏱ 3 min

In this new tutorial dedicated to Zabbix, I will explain how to monitor a web server under Nginx in order to have…

In this tutorial, I will explain how to easily install nano on Windows (Desktop and Server). If you regularly use Linux, you…

In this tutorial, I will explain how to change a mailbox database in Exchange 2016/2019 using PowerShell and the Cmdlet New-MoveRequest. If…

Ansible 18 Jan 2023 ⏱ 2 min

In a previous tutorial, I explained how to install and use Ansible to execute automatic actions on your Windows and Linux servers.…

Linux 11 Jan 2023 ⏱ 2 min

In this tutorial, I will walk you through how to install Docker and Docker Compose on Ubuntu and Debian. Installation of Docker…