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Network ATC on Azure Stack HCI

Network ATC on Azure Stack HCI

Update: Network ATC is now publicly available with Azure Stack HCI 21H2 As you may be aware, Microsoft announced the general availability of the Azure-connected Hyper-Converged Infrastructure, Azure Stack HCI. Previously Azure Stack HCI was built off Windows Server which ... continue reading
Open Source XDP for Windows

Open Source XDP for Windows

XDP (eXpress Data Path) is a high performance, programmable network data path that is already a Linux Kernel project with a significant community (Google, Amazon, Intel, Mellanox, etc.) around it. “XDP for Windows” is our new open source XDP interface ... continue reading
Aligning on mDNS: ramping down NetBIOS name resolution and LLMNR

Aligning on mDNS: ramping down NetBIOS name resolution and LLMNR

The modern standard for multicast name discovery is mDNS. However, Windows supports other multicast name resolutions protocols for historical reasons, including NetBIOS name resolution and LLMNR. More details about the documentation for each of these protocols can be found here ... continue reading
mDNS in the Enterprise

mDNS in the Enterprise

James Kehr here with the Windows networking support team. This article covers details about mDNS and recommended best practices when trying to control the protocol designed to make life easier. Starting with Windows 10 1703 Microsoft has included native support ... continue reading
Troubleshooting HTTP/3 in http.sys

Troubleshooting HTTP/3 in http.sys

HTTP/3 is a major change to HTTP. It switches away from using TCP as a transport and TLS separately to using QUIC as a transport which has TLS 1.3 or higher built in. These changes mean that migrating from HTTP/2 ... continue reading
Making DoH Discoverable: Introducing DDR

Making DoH Discoverable: Introducing DDR

Credit and thanks to Alexandru Jercaianu for implementation work DNS over HTTPS (DoH) in the DNS client exited preview and became a supported feature with the Windows Server 2022 and Windows 11 releases. Unlike plain-text DNS, DoH requires a template ... continue reading
Deploying HTTP/3 on Windows Server at Scale

Deploying HTTP/3 on Windows Server at Scale

Windows Server 2022 was released for general availability last month. Since then, in cooperation with the Microsoft 365 team, we have started deploying the latest Windows Server on Exchange Online service front door servers globally, with a primary goal of ... continue reading
What's QUIC?

What's QUIC?

James Kehr here with the Windows Networking Escalation Engineering team. Today’s topic is the newly published QUIC protocol. This is a quick discussion, all puns intended, about why QUIC is important to the modern internet. Back in the old days, ... continue reading

Enabling HTTP/3 support on Windows Server 2022

Credit and thanks to Matthew Cox and Daniel Ring for implementation work Windows Server 2022 is currently in preview as announced earlier this year. One of the new features it brings is native support for hosting HTTP/3 services. In this ... continue reading
Windows Insiders gain new DNS over HTTPS controls

Windows Insiders gain new DNS over HTTPS controls

Credit and thanks to Alexandru Jercaianu and Vladimir Cernov for implementation work Over the last year, we have been improving the DNS over HTTPS (DoH) functionality in the Windows DNS client. Now we are pleased to introduce you to the ... continue reading