Archive for June, 2015

Why is my Windows server communicating with hosts 94.245.121.253 or 157.56.144.215?

On modern servers, for example Windows Server 2012 R2 you might see “suspicious” traffic to IP addresses 94.245.121.253 or 157.56.144.215 on port 3544. This traffic is coming from the Microsoft Teredo implementation. These IP addresses actually resolve to terodo.ipv6.microsoft.com What is teredo? Teredo is a protocol that allows computers behind a NAT firewall (most home computers […]

VMRC installation error: The user did not accept the license agreement by passing EULAS_AGREED=1 on the command lineThe user did not accept the license agreement by passing EULAS_AGREED=1 on the command line

During the installation of VMRC you might run into the following error: “The user did not accept the license agreement by passing EULAS_AGREED=1 on the command line.” Despite adding EULAS_AGREED=1 to the command-line this error still occurs. Sometimes the fix is easy, rerun the installation as administrator (right click-> run as administrator) and the installation […]

Setting the Windows Server 2012 R2 sxs (alternate sources) path locally

When you try to install any Windows Server 2012 R2 role or feature, Windows requires the original setup files. You can use the CD and specify the path, or you can use the steps written below to set the path to for example a network location. 1.Start the Local Group Policy Editor or Group Policy […]

Use Windows Powershell to determine the Windows Edition

There are many Powershell scripts to determine the operating system version, but determining is the edition is a bit harder. You might need this information for certain applications. The information about the version is encoded in the OperatingSystemSKU property of the Win32_OperatingSystem class of the WMI (Windows Management Instrumentation) The following table shows the currently available […]