Windows Server 2019 Now Available

Introduction Windows Server 2019 is once again generally available. You can pull the new Windows Server 2019 images—including the new ‘Windows’ base image—via: docker pull mcr.microsoft.com/windows/servercore:1809 docker pull mcr.microsoft.com/windows/nanoserver:1809 docker pull mcr.microsoft.com/windows:1809 Just like the Windows Server 2016 release, the Windows Server Core container image is the only Windows base image in our Long-Term Servicing… Read more

Hyper-V HyperClear Mitigation for L1 Terminal Fault

Introduction A new speculative execution side channel vulnerability was announced recently that affects a range of Intel Core and Intel Xeon processors. This vulnerability, referred to as L1 Terminal Fault (L1TF) and assigned CVE 2018-3646 for hypervisors, can be used for a range of attacks across isolation boundaries, including intra-OS attacks from user-mode to kernel-mode… Read more

Bringing Device Support to Windows Containers

When we introduced containers to Windows with the release of Windows Server 2016, our primary goal was to support traditional server-oriented applications and workloads. As time has progressed and the utility of containers as a technology is becoming fully realized, we’re now seeing containers playing an important role in enabling Internet of Things (IoT) workloads… Read more

Hello World MSMQ! …from Windows Containers

Hello from Microsoft Hackathon!!!  What are we hacking? Containerizing MSMQ! Let me tell you more… MSMQ (Microsoft Message Queuing) is one of the top asks from Enterprise customers who are lifting and shifting traditional apps with Windows Containers. We are hearing that in our conversations with customers directly, especially with major financial institutions. It is… Read more

Hyper-V symbols for debugging

Having access to debugging symbols can be very handy, for example when you are A partner building solutions leveraging Hyper-V, Trying to debug a specific issue, or Searching for bugs to participate in the Microsoft Hyper-V Bounty Program. Starting with symbols for Windows Server 2016 with an installed April 2018 cumulative update, we are now… Read more

Sneak Peek: Taking a Spin with Enhanced Linux VMs

**Update: This feature is now generally available. Please see our latest blog post to learn more** Whether you’re a developer or an IT admin, virtual machines are familiar tools that allow users to run entirely separate operating system instances on a host. And despite being a separate OS, we feel there’s a great importance in… Read more

Looking at the Hyper-V Event Log (January 2018 edition)

Hyper-V has changed over the last few years and so has our event log structure. With that in mind, here is an update of Ben’s original post in 2009 (“Looking at the Hyper-V Event Log”). This post gives a short overview on the different Windows event log channels that Hyper-V uses. It can be used… Read more

A smaller Windows Server Core Container with better Application Compatibility

In Windows Server Insider Preview Build 17074 released on Tuesday Jan 16, 2018, there are some exciting improvements to Windows Server containers that we’d like to share with you.  We’d love for you to test out the build, especially the Windows Server Core container image, and give us feedback! Windows Server Core Container Base Image… Read more