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Connection error: renew WSUS certificate

Admins who work with WSUS regularly are used to connection issues of the MMC console. However, it is not clear from the error message what the cause of these problems could be. One possible reason is an expired certificate. After renewing it, you assign it to the WSUS website. For Server Core, you can do this using PowerShell.

The post Connection error: renew WSUS certificate first appeared on 4sysops.

Switch between Windows Terminal and the legacy console

The new graphical console brings a number of improvements over the classic console host. However, for the foreseeable future, both environments are available. In Windows 11, the new terminal is already set as the default, but you can switch between both as needed. Unfortunately, the coexistence between the two terminals is suffering from some inconsistencies.

The post Switch between Windows Terminal and the legacy console first appeared on 4sysops.

Windows Server 2025 will support SMB over QUIC in all editions

One of the main new features of Windows Server 2022 is SMB over QUIC. QUIC serves as an alternative to TCP and RDMA, providing a secure connection to a file server over untrusted networks. This protocol is based on UDP and TLS 1.3, enhancing the security and performance of file shares. Windows Server 2025 will include it in all editions, along with the new QUIC Client Access Control. QUIC has been exclusive to the Azure Edition until now.

The post Windows Server 2025 will support SMB over QUIC in all editions first appeared on 4sysops.

SystoLOCK in review: Logging in to Active Directory with multi-factor authentication without passwords

SystoLOCK offers a robust solution for enhancing security through multi-factor authentication (MFA) without passwords in an Active Directory environment. Unlike other methods, SystoLOCK does not rely on cloud services. The solution introduces the convenience similar to smartcard-based authentication, eliminating the need for complex password management. Moreover, SystoLOCK allows users to log in securely via VPN connections and supports offline login functionality.

The post SystoLOCK in review: Logging in to Active Directory with multi-factor authentication without passwords first appeared on 4sysops.

WSL: Start Linux apps in Windows and Windows apps in Linux, access ext4 and NTFS

The Windows Subsystem for Linux (WSL) aims to seamlessly integrate the open-source operating system with Windows, blurring the boundaries between the two worlds for users. This integration includes the ability to access the file system of one operating system from the other and run applications from either system.

The post WSL: Start Linux apps in Windows and Windows apps in Linux, access ext4 and NTFS first appeared on 4sysops.

Create a free lab for Microsoft 365 and Intune

If you're looking to delve into Microsoft 365 management, there are a few options available. Some components offer free, time-limited trial versions, and in the case of Azure AD, there's a stripped-down free edition. Alternatively, Microsoft provides a developer license with a fully-featured subscription to M365 E5.

The post Create a free lab for Microsoft 365 and Intune first appeared on 4sysops.

Notepad++: Search and replace with regex und plugins

The free and widely-used editor for Windows supports not only basic search and replace functions but also regular expressions. A helpful plugin assists in formulating regex, providing real-time expression validation. However, for many tasks you don't need regex; built-in functions and plugins often offer simpler solutions.

The post Notepad++: Search and replace with regex und plugins first appeared on 4sysops.

Windows Server 2025 Hyper-V: GPU partitioning, deduplication for VHDs, AD-less live migration

The upcoming LTSC release of Windows Server introduces several enhancements to Hyper-V and new storage functions, which primarily benefit the operation of virtual machines. This includes GPU virtualization, a new deduplication feature for ReFS, and live migration of VMs on clusters that are not members of an AD domain.

The post Windows Server 2025 Hyper-V: GPU partitioning, deduplication for VHDs, AD-less live migration first appeared on 4sysops.

Install Windows Subsystem for Linux (WSL) on different Windows editions and Server Core

For some time now, Microsoft has been offering a simplified installation of WSL via the wsl.exe utility. Hence, most guides refer to this method. However, in practice, it is not quite as straightforward because this command does not work on Server Core and is only suitable for WSL 2.

The post Install Windows Subsystem for Linux (WSL) on different Windows editions and Server Core first appeared on 4sysops.

Disable SMBv1 and enable SMBv1 auditing

Windows still includes some legacy protocols that pose significant security risks. This applies to SMBv1/CIFS, which Microsoft is gradually phasing out. While it is still present in new Windows versions, it is disabled by default. The audit feature can detect SMBv1 requests and assess whether the protocol is still required.

Create bootable ISO for Windows image (.wim)

Before deploying to clients, you should update a Windows image with the latest patches and customize it to meet their needs. Depending on the deployment method, you need to provide the WIM archive on a bootable ISO file. This can be created using the tools from the Windows Assessment and Deployment Kit (ADK).
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