Les dernières mises à jour de sécurité pour Windows Server publiée en juin 2025, dont la KB5060526, provoquent des problèmes avec le service DHCP.

The post Windows Server : les mises à jour de juin 2025 font planter les serveurs DHCP ! first appeared on IT-Connect.

Activating the built-in Administrator account in Windows 11 can be essential for IT administrators in specific scenarios. This comprehensive guide explores the differences between the built-in Administrator and user-created administrator accounts, outlines secure methods to enable the account, and discusses best practices to mitigate potential security risks. Whether managing system recovery, configuring deployments, or troubleshooting complex issues, understanding how to activate and manage the Windows 11 Administrator account safely is crucial for maintaining a secure and efficient IT environment.

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Afin de corriger un bug qui affecte les VM Hyper-V sur certains environnements, Microsoft a publié une nouvelle mise à jour hors bande pour Windows Server !

The post Redémarrages intempestifs de VM Hyper-V : Microsoft publie une nouvelle mise à jour en urgence ! first appeared on IT-Connect.

Windows Server 2025 introduced several advancements that make containerized workloads more flexible, secure, and customizable. One notable feature is the addition of Features on Demand (FoD) in Nano Server containers. This feature allows you to customize Nano Server containers by adding only the necessary components while keeping your container images small and optimized. In this guide, we’ll explore how to enable and use Features on Demand within Nano Server containers, providing real-world use cases that demonstrate this feature's power. We will also examine how it impacts container image sizes.

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Windows Server 2025 introduces several new features and security improvements for Active Directory, including a new functional level and the Database 32k Pages feature. To take advantage of these features, you must first upgrade all domain controllers (DCs) and migrate Active Directory to Windows Server 2025. In this article, I'll guide you through the step-by-step migration process.

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Apprenez à superviser un serveur Windows avec SNMP et la solution Centreon, pour contrôler le CPU, la RAM, et d'autres métriques. Tutoriel pas à pas.

The post Centreon : comment superviser des serveurs Windows Server avec SNMP ? first appeared on IT-Connect.

A structured approach that covers technical steps and strategic planning can streamline the migration of a file server to Windows Server 2025. This article explores two main migration strategies—keeping or changing the file server’s hostname—and demonstrates how to transfer shared folders and data using a custom PowerShell script. By following these methods, you can ensure a smooth transition to the latest server OS while minimizing user disruption and preserving file access settings.

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Les mises à jour de sécurité d’avril 2025 pour Windows Server sont à l'origine de problèmes d’authentification sur les contrôleurs de domaine Active Directory.

The post Windows Server : les mises à jour d’avril 2025 à l’origine de problèmes avec l’Active Directory first appeared on IT-Connect.

Before upgrading to Windows Server 2025, check your existing Windows Server version to determine if an in-place upgrade is feasible. You can check the Windows version via the graphical user interface, Windows PowerShell, or the command prompt.

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Avec ce tutoriel, apprenez à délivrer un certificat SSL / TLS pour un serveur Web sous Linux, qu'il soit sous Apache2 ou Nginx, afin de bénéficier du HTTPS.

The post AD CS : comment délivrer un certificat TLS pour un serveur Web Linux ? first appeared on IT-Connect.

Votre contrôleur de domaine Active Directory sous Windows Server a une connexion réseau en mode public au démarrage ? Voici une solution pour résoudre ce problème.

The post Active Directory : le pare-feu est en profil « Public » au démarrage des contrôleurs de domaine, que faire ? first appeared on IT-Connect.

DNSSEC is a security standard that protects the Domain Name System by ensuring only authorized servers can respond to DNS queries. Microsoft's DNS server has supported DNSSEC zone signing for some time. However, to take full advantage of DNSSEC, client systems must also be configured, typically via Group Policy, to request authentic responses.

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Microsoft Hyper-V Server 2019 is a standalone product that allows you to virtualize your environment at no cost. In this post, you will learn about the options available to upgrade to the paid Windows Server 2025 Hyper-V role.

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With Microsoft’s decision to deprecate NTLM (NT LAN Manager), it’s time to disable NTLM authentication on Windows Server 2025 and move toward more secure alternatives. NTLMv1 has already been removed in Windows Server 2025 and Windows 11, version 24H2, signaling the beginning of NTLM’s end. Given the protocol’s vulnerabilities—like pass-the-hash attacks—organizations should begin transitioning to stronger authentication methods such as Kerberos, the preferred protocol in Active Directory environments.

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On a Windows host, strictly isolated Docker containers can be operated thanks to Hyper-V, which is capable of running an operating system different from Windows Server. Microsoft offers Server Core and Nano Server as operating systems suitable for this purpose. Windows services inside the containers can be managed locally using the CLI or remotely using established GUI tools.

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Windows Server 2025 offers multiple options for running Docker containers, supporting both Linux and Windows. Users can choose between two isolation modes for Windows containers, while Linux containers can optionally run on WSL 2. Additionally, Server 2025 improves backward compatibility.

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Dans cet article, nous verrons ensemble comment installer un serveur SFTP sur Windows Server. J’utiliserai ici Windows Serveur 2022 mais vous pouvez faire de même sur les versions précédentes. Nous utiliserons ici le logiciel open source OpenSSH pour réaliser cette tâche. Pourquoi utiliser un serveur SFTP ? Un serveur SFTP est un moyen sécurisé et …