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…
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GPO: schedule the automatic shutdown of computers
In this tutorial, I will walk you through how to schedule computers to automatically shut down using Group Policy. In fact, there…
Zabbix – Restart a service on Ubuntu – Linux
In this tutorial, I will show you, how to restart a service (systemctl) on Ubuntu/Debian monitor with Zabbix. When we supervise a…
Ubuntu: Install a Remote Desktop Server with XRDP
In this tutorial, I will explain how to install xRDP in order to have a remote desktop server (or rather a service)…
Windows DNS Server: Error 404, 407, 408 with virtual machine on Hyper-V
In this tutorial, which is a special case, I will explain how to solve the 404, 407 and 408 error that can…
Exchange 2016/2019 – convert a mailbox to a shared mailbox
In this tutorial, I will explain how to convert a "normal" mailbox into a shared mailbox. The main difference between a user…
PowerShell: show the contents of a text file
In this tutorial, I will show you how to display the contents of a text file (txt, yaml, php, vbs…) in a…
Windows Server: disable a cipher suite
In this tutorial, I will walk you through how to disable a cipher suite also call cipher. If you arrive on this…
Crowdsec: send logs to Elasticsearch (ELK)
In this tutorial, I will explain how to send decision logs to Elasticsearch (ELK) so that you can create a dashboard to…
WSUS manually import an update from the Microsoft Update Catalog
In this tutorial, I will explain how to manually import a site updatehttps://www.catalog.update.microsoft.com/ in WSUS with PowerShell. By default, this operation is…
Delete a DNS zone on Windows Server
In this tutorial, I will explain how to delete a DNS zone on Windows Server. Open the DNS administration console On the…
GPO: force updates from the console
Since Windows 2012, it is possible to force the update of group policies from the Group Policy Management console. It is no…
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