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Month: August 2015

Migrate Microsoft Certification Authority to SHA-2 Algorithm

Migrate Microsoft Certification Authority to SHA-2 Algorithm

Microsoft is announcing a policy change to the Microsoft Root Certificate Program. The new policy will no longer allow root certificate authorities to issue X.509 certificates using the SHA-1 hashing algorithm for the purposes of SSL and code signing after January 1, 2016. Using the SHA-1 hashing algorithm in digital certificates could allow an attacker to spoof content, perform phishing attacks, or perform man-in-the-middle attacks. Microsoft recommends that certificate authorities no longer sign newly generated certificates using the SHA-1 hashing…

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Error: Failed while creating virtual Ethernet switch

Error: Failed while creating virtual Ethernet switch

If you encounter the error Failed while creating virtual Ethernet switch with Invalid class string as an explanation, it means that you need to repair some DLL on your OS. To resolve this issue you will have to use System File Check tool that is built into the Operating System to look for system file corruption. (Keep in mind it is always a good idea to have a backup of your data). Follow these steps to launch the repair process: Start…

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Install Hyper-V role on an Hyper-V VM

Install Hyper-V role on an Hyper-V VM

In order to avoid the error message when you try to install Hyper-V role on a Hyper-V VM through GUI, you will have to run several Powershell commands: First, you need to change your Powershell execution policy script to at least Remote Signed: Set-ExecutionPolicy RemoteSigned Then you will have to install Hyper-V role: Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V -All -NoRestart This step is to install Hyper-V management tools: Install-WindowsFeature RSAT-Hyper-V-Tools -IncludeAllSubFeature (Optional) Finally, you can also install Failover Cluster and MPIO…

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Configure Agent Failover to Multiple SCOM Gateway Servers

Configure Agent Failover to Multiple SCOM Gateway Servers

First, you need to check that all certificates (see my previous article) are correctly configured. Then you have to connect on one of your management server or console server, open Operations Manager Shell and run the following command.

This command gives you all known Management Server or Gateway Server for a given Agent. Then if you want to reconfigure agent configuration with proper primary management server and failover management servers, run the following command.

You should run this…

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