In this tutorial, I will explain how to SSH server on Windows Server 2025 to administer it remotely. If you have been following me for several years, this is not the first article I have done on OpenSSH on Windows Server. At the beginning of the portability of the SSH server on Windows Server, to …
In this tutorial, we will see how to delete files older than X day using PowerShell. This type of script is often used in businesses on servers to rotate logs. If we take the example of IIS, the logs are never deleted, which means that after 3 years, we end up with more than 1,000 …
In this tutorial, I will show you how to block PowerShell remote access to Exchange with ARR. As a security measure, if you use IIS ARR to publish Exchange servers to the Internet, you must block PowerShell remote access. By default, it is possible to remotely administer an Exchange server with PowerShell, we find all …
In this tutorial, I will explain how to retrieve the base DN also called distinguishedName in an Active Directory. This attribute is often used to configure LDAP/Active Directory bindings for applications. All Active Directory objects (Users, Computers, Organizational Unit, etc.) have the attribute: distinguishedName and this is unique. I say that the base DN attribute …
In this tutorial, I will explain to you how to activate extended protection (Exchange Extended Protection) on Exchange 2016 (and 2019 if you do not have CU14 which automatically activates it) which will allow you to protect yourself from CVE-2024 -21410. Exchange Extended Protection is in fact an enhanced security configuration for Exchange 2016 / …
In this “How to” tutorial, we will see how to create an Organizational Unit in an Active Directory with the New-ADOrganizationalUnit cmdlet. Create an OU in PowerShell Open a PowerShell command prompt From a domain controller open a PowerShell window Use the New-ADOrganizationalUnit Cmdlet to Create the OU Enter the following command by adapting the …
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 environment (computers + servers) is configured to run only signed scripts and a PowerShell script is launched in a malicious file, it will be neutralized …
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 easily install nano on Windows (Desktop and Server). If you regularly use Linux, you are certainly familiar with it, for those who do not know nano, it is a command line text editor and it must be said that sometimes it is missing on Windows, particularly when …