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…
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# Configuration
29 articles
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Ubuntu: configure systemd log size
In this tutorial, we will see how to configure the size of systemd logs on an Ubuntu distribution. By default, the logs…
Nginx: get the visitor’s real IP with CloudFlare
In this tutorial, I will explain how to get the real IP address of visitors using CloudFlare services and an Nginx web…
Ubuntu 20.04: add swap space
In this tutorial, I will walk you through how to add swap space on Ubuntu 20.04 and above. A swap space on…
Windows Server: configure an IP address on a network card
In this tutorial, I will explain how to configure an IP address on a network card on a Windows server. This operation…
GPO – Use WMI filters to filter the application of group policies
In this tutorial, I will walk you through how to create and use Group Policy WMI Filters to filter the application of…
Ubuntu: show default gateway
Here is how to display the default gateway on Ubuntu from the command line. Ubuntu 20.04 + (without net tools) ip route…
VDI: change the configuration of virtual machines
To follow up on the tutorial on deploying a VDI (Virtual Desktop Infrastructure) environment, I will explain in this tutorial how to…
PrintNightmare: secure print configuration
In this "little" tutorial, I will show you how to set up a "secure" configuration. Since the publication of the PrintNightmare flaw,…
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,…
Manage the DNS cache on Windows Server
In this "tutorial", I will give you some PowerShell cmdlets to manage your DNS server cache on Windows Server. To be more…
Ubuntu: install and configure the SNMP service
In this tutorial, I will explain to you how to install and configure the SNMP service on Ubuntu, which will then allow…
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