IIS - Add the X-Forwarded-For field in the logs
In this tutorial, I will explain how to add the X-Forwarded-For field in the IIS logs, in order to retrieve the real IP address of a visitor when a reverse proxy is …
Tutorials
All IT tutorials: systems, networking, virtualization, security.
659 articles
PowerShell: sign scripts
In this tutorial, I will explain how to sign your scripts. Before going into the subject, we will see why signing the scripts, the main reason is security. If your …
ADFS Proxy: Fix Error 0x8007520c
In this tutorial, I will tell you how to fix error 0x8007520c on an ADFS proxy server. When you open the Remote Access Management Console console, the following page is …
PowerShell: download a file in HTTP, HTTPS
In this tutorial, I will explain how to download a file using PowerShell that is on a server accessible in HTTP or HTTPS. This can be particularly useful when …
Powershell: create a text file and write in it
In this “small” tutorial, I will explain how to create a text file in Powershell and then how to write content in it. In this tutorial, we will see 4 Powershell Cmdlets:
Zabbix: restart a Windows service
In this tutorial, I will explain how to restart a Windows service where Zabbix agent is installed. If you followed the tutorial:Zabbix – Restart a service on Ubuntu – …
GPO: configure default programs
In this tutorial, I will explain how to configure the default applications (browser, PDF reader…) using a Group Policy (GPO) in an Active Directory environment. Puzzle of …
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 for Uncomplicated Firewall is a simplified Netfilter …
View Active Directory Group Members in PowerShell
In this tutorial, I will explain how to display the members of an Active Directory group in PowerShell. I already see some reaction of the style, we can have it from the …
Exchange 2016 / 2019: delete a mailbox while keeping the user
In this tutorial, I will explain how to delete a mailbox on Exchange 2016/2019, without deleting the user who is linked to this mailbox. On the ECP interface, if you use …
Exchange: send emails externally from a connector
In this tutorial, I will explain how to configure a receive connector to send emails outside your organization from Exchange. You have already configured a receive …
SSH client: delete existing keys
In this tutorial, I will explain how to solve the error : WARNING : REMOTE HOST IDENTIFICATION HAS CHANGED. This error mainly occurs when you reinstall a Linux server …