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 displayed: This error occurs during a certificate change and the proxy does not have the same fingerprint as the ADFS server. The easiest way to …
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 administering a server without an interface, where the only browser installed is Internet Explorer or in a script. There are several solutions to download one using …
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: We will start by creating the file. Here the file is created in the current folder, it is possible to put an absolute …
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 – Linux, it’s almost identical. To illustrate this tutorial, we will try to restart the Winlogbeat service. As you can see, on several servers the Winlogbeat …
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 IT services, it is the use of default programs for certain types of files (PDF, Images) or even Internet browser, the configuration of such a group strategy allows …
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 command line utility, it is a simple alternative to iptables, which allows to manage firewall rules. If UFW is not installed, use the following command to …
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 graphical interface, it’s true, but in some cases the use of PowerShell saves a lot of time, especially when using ADGLP I will …
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 the trash can icon in addition to deleting the mailbox, this deletes the user in the Active Directory, or it happens in some cases …
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 connector on Exchange in order to be able to receive e-mails from applications, copiers or any other devices. Now you need to send mail to external addresses (gmail.com, outlook.com …
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 with the same IP address and you have registered the thumbprint (key). Since the server has been reinstalled, it is normally that the key is changed. …