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 tutorial by a search engine, there is a good chance that it is due to a vulnerability test and that you have an alert that goes up because vulnerable cryptographic suites (cipher) are …

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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 possible automatically by passing the console and provided that you use Internet Explorer 11. In 2022, who still uses this browser? Download the update and retrieve its GUID Go to the site https://www.catalog.update.microsoft.com/ …

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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 Windows server, open the DNS administration console, it is accessible by the server manager by clicking on Tools then on DNS. View DNS Zones In the administration console, expand the Forward lookup zones …

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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 longer necessary to go through all the computers and do a gpudapte. To work, the firewall must allow RPC calls to pass. Force update of GPOs remotely 1. Open the Group Policy Management …

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DFS: delete a namespace on Windows Server

In this tutorial, I will explain how to delete a DFS namespace on Windows Server. In the vast majority of cases, you won’t normally need this tutorial 😉 Although this operation is relatively simple to perform using the graphical interface, it sometimes happens that it does not go as planned, especially if you have planned …

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Share a folder in PowerShell

Create a share with PowerShell: This tutorial explains how to share a folder in Powershell granting full access to Everyone. The folder to be shared must already exist on the server. Open a PowerShell window On the server, open a PowerShell command prompt as Administrator. Use the New-SmbShare cmdlet Enter the following command to create …

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DNS: delete a record on Windows Server

In this “How To” tutorial, I will explain how to delete a DNS record on Windows Server with the DNS Manager console. Delete a DNS record Open the DNS Manager console On a server where the DNS Manager console is installed, open it and go to the zone where you want to delete the record. …

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Crowdsec: protecting Windows servers

In a previous tutorial, I explained how to protect your Linux servers with Crowdsec in order to block “malicious” traffic. For almost 2 months now, the Crowdsec version has been available for Windows. If you are not yet familiar with Crowdsec, here is a brief presentation: Crowdsec will analyze different log files (Web, firewall, SSH, …

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Active Directory: change the KrbTgt account password

In this tutorial, I will explain how to change the password of the KrbTgt account. Before explaining how to change the password of this account, I will give you some explanations. Who is krbtgt? The krbtgt account is a disabled service account in the Active Directory, which is used for the distribution of Kerberos Tickets, …

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