Tagged: Windows Server 2012

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Unable to RDP into Azure VMs

After patching all the Windows Server in Azure, a colleague calls me in panic, because their users, could not access their VMs through RDP. They were getting a CredSSP error (picture bellow).  So, after reading the link bellow, it seems it could be related with the March update. https://support.microsoft.com/en-us/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018 Rebooting the VM didn’t sort the issue, there’s a few mitigations listed in this post https://blogs.technet.microsoft.com/mckittrick/unable-to-rdp-to-virtual-machine-credssp-encryption-oracle-remediation/ Then I realize that was...

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How to extend Azure Service Fabric to on-premise?

You can deploy a Service Fabric cluster on any physical or virtual machine running the Windows Server operating system, including ones residing in your on-premises datacenters. You use the standalone Windows Server package available for download from the Azure online documentation website (see here). To deploy an on-premises Service Fabric cluster, perform the following steps: Plan for your cluster infrastructure. You must consider the resiliency of the hardware and network...

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Cluster Shared Volumes (CSV) errors on Hyper-V Cluster

In a failover cluster, virtual machines can use Cluster Shared Volumes that are on the same LUN (disk), while still being able to fail over (or move from node to node) independently of one another. Virtual machines can use a Cluster Shared Volume only when communication between the cluster nodes and the volume is functioning correctly, including network connectivity, access, drivers, and other factors. You probably didn’t notice any issues...

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MPIO on Hyper-V Server

On the previous version of Windows Server (prior Windows Server 2012) you have to download and install MultiPath I/O (MPIO). Since Windows Server 2012 MPIO is a feature that you can enable. Because it’s a feature that comes with the server, means that you will have the PowerShell cmdlets available. Use of the MPIO module in Windows PowerShell requires an “elevated” PowerShell window, opened with Administrator privileges. How to do...

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Restoring Hyper-V and Virtual Machines using Windows Server Backup

Cluster, Hyper-V Replica, Storage Migration, and other features makes for a higher availability for Hyper-V virtual machines, but it is impossible to provide 100 percent assurance in any system. When we lose a host computer, for example, not only is a single system offline, but also all the virtual machines that are running in there. It does not matter if it is only an application, a virtual machine, or the...

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Backing up Hyper-V and virtual machines using Windows Server Backup

Previous versions of Hyper-V (like 2008, 2008 R2 and 2008 R2 SP1) had complications and incompatibilities with the built-in backup tool, forcing the administrators to acquire other solutions for backing up and restoring. Since Windows Server 2012, Windows Server comes with a feature known as Windows Server Backup (WSB), which has full Hyper-V integration, allowing you to back up and restore your server, applications, Hyper-V, and virtual machines. WSB is...

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Enabling and disabling the graphical interface in Hyper-V Server Core

Server Core has many installation benefits, but there are a few situations where the GUI is better and provides more options; for example, when we need to troubleshoot a problem on the server. Even with the handy tools from the previous task, nothing replaces the full server installation. Since Windows Server 2012 it is allow to install and uninstall the GUI, making our job easier when the GUI is necessary...

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Managing a Hyper-V Server Core installation using sconfig

With all the benefits that Server Core bring such as performance, security and so on. But without the GUI, it’s not easy to do the daily management and maintenance of Hyper-V. If you want to change the computer name or the IP address, the GUI is always the easiest to use. But on the other hand, the command line can bring a fast and an automated process. That’s why since...

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Capacity Planner for Hyper-V Replica

Hyper-V in Windows Server 2012 includes a new capability called Hyper-V Replica. Hyper-V Replica allows administrators to replicate their virtual machines from a primary server/cluster to a replica server/cluster. The Capacity Planner for Hyper-V Replica guides the IT administrator to design the server, storage and network infrastructure which is required to successfully deploy Hyper-V Replica. After reviewing the license terms, Click on ‘I accept the license term’ and click on...

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Statistics of a NIC Teaming

If the UI window is sufficiently tall a statistics tile appears at the bottom of the Team tile and the Adapters and Interfaces tile. These statistics windows reflect the traffic of the selected team and selected team member. If you don’t see the statistics try making the UI window a little taller. Viewing statistics for a team interface If the Team Interfaces tab is selected in the Adapters and Interfaces...