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Networking Blog

The Official Blog Site of the Windows Core Networking Team at Microsoft
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49.7K

Announcing Zero Trust DNS Private Preview

tojens on May 02 2024 06:00 AM
Enabling domain-name-based lockdown of Windows for Zero Trust deployments in future versions of Windows
13.3K

Deployment Considerations for Windows ZTDNS Client

tojens on May 02 2024 06:00 AM
A follow up to the ZTDNS private preview announcement explaining some considerations for future ZTDNS deployments
2,947

Windows DNS Client Survey

AditiPatange on Apr 25 2024 06:00 AM
We want to hear from you about your DNS deployments to gauge interest in different DNS technologies
51.1K

Three Reasons Why You Should Not Use iPerf3 on Windows

JamesKehr on Apr 18 2024 12:10 PM
This article will explain why you should not use iPerf3 on Windows for synthetic network benchmarking and testing. Follo...
10.5K

Windows 11 Plans to Expand CLAT Support

tojens on Mar 07 2024 07:00 AM
Announcing what's next for Windows 11 + IPv6 transition tech
6,831

IPv6 Transition Technology Survey

tojens on Feb 06 2024 06:00 AM
Sharing a customer signal survey to gauge interest in various approaches to IPv6 transition technology
2,285

SDN: Migrating from Rest Name to Static IP | Remove worries of DNS!

Kyle Bisnett on Feb 02 2024 09:10 AM
As an SDN administrator for HCI and Windows Server, you may have experienced issues with Dynamic DNS registration of Net...
13.3K

Introducing DNR support for Windows Insiders

AditiPatange on Oct 25 2023 10:00 AM
Instructions for enabling DNR in Windows Insiders to seamlessly deploy encrypted DNS
12.9K

NCSI Change Notification

JamesKehr on Jul 05 2023 03:21 PM
A recent change may cause your Windows systems from detecting an Internet connection.
5,292

Network ATC management in Windows Admin Center

Dan Cuomo on Jul 05 2023 10:13 AM
Network ATC continues to be the preferred method to deploy host networking for our Azure Stack HCI customers. For most c...
7,009

Migrate an existing cluster to Network ATC

Dan Cuomo on Jun 09 2023 09:38 AM
Network ATC has led to HUGE reductions in customer support cases which means increased uptime for your business applicat...
5,813

SDN + AKS 3-15-23 Updates and Features

Kyle Bisnett on Mar 16 2023 09:28 AM
Support for leveraging existing SDN vNETs, multiple vNETs for your Target clusters to support isolation, and a new AKS H...
10.4K

Physical switch requirement changes for Azure Stack HCI

Basel_Kablawi on Mar 15 2023 10:15 AM
Read on to see the latest updates to the Azure Stack HCI physical network switch requirements!
7,574

Azure Stack HCI: What's new for Software Defined Networking (SDN) with WAC v2211

Kyle Bisnett on Jan 17 2023 12:50 PM
Today is an exciting day as we share with each of you the extensive new features and improvements for SDN in Windows Adm...
6,311

Survey: Accelerated Networking

Basel_Kablawi on Jan 06 2023 03:10 PM
We want to hear from you regarding Accelerated Networking!
8,750

Network HUD: November 2022 content update has arrived!

Dan Cuomo on Nov 15 2022 06:01 AM
In our first article we introduced Network HUD as a new feature that proactively identifies and remediates operational n...
8,628

Introducing Network HUD for Azure Stack HCI

Dan Cuomo on Nov 15 2022 06:00 AM
We’re excited to announce the release of Network HUD - A new feature that proactively identifies and remediates operatio...
6,943

General Availability for SDN integration with AKS on Azure Stack HCI

Kyle Bisnett on Oct 12 2022 10:05 AM
Our SDN and AKS engineering teams are so excited to announce General Availability to fuel our customer’s desire to enabl...
17.3K

LEDBAT Background Data Transfer for Windows

Daniel Havey on Sep 30 2022 08:50 AM
LEDBAT is the background data transfer product built into the Windows networking stack and recommended by the Windows Da...
8,111

Balance Performance in MsQuic and XDP

huanyi on Sep 16 2022 03:36 PM
Improving performance has always been a major goal for MsQuic. Recently, we have put in a lot of effort into getting ult...
12.8K

NIC Certification updates in the Windows Server Catalog

Dan Cuomo on Aug 31 2022 08:38 AM
Read on to see how we’re simplifying the structure of Windows Server NIC certifications into a "role-based" structure!
8,037

Troubleshooting SDN Windows Admin Center Certificates

Kyle Bisnett on Aug 30 2022 02:58 PM
If you are receiving "The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secur...
7,470

Az Stack HCI: Software Defined Networking (SDN) extensions reach General Availability for WAC

Kyle Bisnett on Aug 25 2022 10:31 AM
SDN Extensions reach general availability for WAC: The rumors are true - SDN Infrastructure, Network Security Groups, Lo...
57.2K

DNS over TLS available to Windows Insiders

tojens on Jul 13 2022 10:00 AM
Instructions for enabling DNS over TLS support for Windows DNS client
15.1K

Open Source XDP for Windows

nibanks on May 24 2022 09:56 AM
We're bringing the latest in network acceleration technology to Windows, and it's open source!
31.2K

Aligning on mDNS: ramping down NetBIOS name resolution and LLMNR

tojens on Apr 22 2022 09:00 AM
Describing our first step toward turning NetBIOS name resolution and LLMNR off by default
83.1K

mDNS in the Enterprise

JamesKehr on Apr 04 2022 01:36 PM
mDNS is everywhere these days because it is simple, easy to build, and user friendly. Everyone in the tech industry love...
10.6K

Troubleshooting HTTP/3 in http.sys

tojens on Apr 01 2022 09:00 AM
A review of some common HTTP/3 deployment challenges and how to address them

Latest Comments

Paul-Flores
in Announcing Zero Trust DNS Private Preview on Jul 18 2024 11:00 AM
@desert_lizard , ztdns is intended to be the secure telemetry system to enable connections to trusted destinations, not validate end users or apps. That's a separate layer of zt, (which, of course, would be locked down by its inability to do connections not listed in the approved and available DNS s...
0 Likes
tojens
in Announcing Zero Trust DNS Private Preview on Jul 18 2024 11:00 AM
@desert_lizard the identity of the client is verified when the encrypted DNS connection is established using mTLS -- this allows the admin to configure the client cert for Windows to present when connecting. Keep in mind that user (human-centric) identity is a huge and critical part of Zero Trust, b...
0 Likes
tojens
in Announcing Zero Trust DNS Private Preview on Jul 18 2024 10:54 AM
@foobar2020 your suggestion is good, but it isn't a replacement for ZTDNS anymore than ZTDNS is for your suggestion. ZTDNS allows a secured PDNS server to make segmentation-by-name policy decisions for Windows to then enforce. It does not try to do anything server-side to secure zone data.
0 Likes
tojens
in Announcing Zero Trust DNS Private Preview on Jul 18 2024 10:53 AM
@MichaelGrafnetter I agree! ZTDNS client is not gated to Win11 SKU, so there's no reason one couldn't use it on Windows Server (though it would only affect outbound connectivity, not inbound, and there may be other gotchas we're not testing for since Win11 is our priority for now). When ZTDNS client...
0 Likes
desert_lizard
in Announcing Zero Trust DNS Private Preview on Jul 17 2024 12:44 PM
I'm not sure this is zero trust. How is the authenticity of the user being checked when doing a DNS lookup?
0 Likes