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Networking Blog

The Official Blog Site of the Windows Core Networking Team at Microsoft
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21.5K

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
5,490

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
2,190

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
37.6K

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...
8,504

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
6,149

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
1,830

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...
11.8K

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
11.2K

NCSI Change Notification

JamesKehr on Jul 05 2023 03:21 PM
A recent change may cause your Windows systems from detecting an Internet connection.
4,596

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...
6,003

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...
5,376

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...
9,766

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!
7,026

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...
5,868

Survey: Accelerated Networking

Basel_Kablawi on Jan 06 2023 03:10 PM
We want to hear from you regarding Accelerated Networking!
8,022

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...
8,002

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...
6,476

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...
15.4K

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...
7,494

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...
11.7K

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!
7,457

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...
6,989

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...
53.1K

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
14.2K

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!
27.3K

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
73.7K

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...
9,986

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

tojens
in Announcing Zero Trust DNS Private Preview on May 06 2024 11:48 AM
@Christian Schindler Today, DoH and DoT are not supported by the Windows DNS server which means ZTDNS during preview relies on third-party DNS servers. However, I know the owners of the Windows DNS server and they've said that they plan to support DoH in a future version of Windows Server. To your o...
0 Likes
Christian Schindler
in Announcing Zero Trust DNS Private Preview on May 06 2024 10:56 AM
My question is: Will Windows DNS support DoH/DoT. Or how are we supposed to configure those servers? Managing all the DNS names that users in an enterprise are allowed to access seems like a hassle to me....
0 Likes
tojens
in Announcing Zero Trust DNS Private Preview on May 06 2024 10:41 AM
@Alex_HQuest Ideally, the SSH server is identified by domain name (which is where an SSH client could use SSHFP records to verify the expected server fingerprint as well!), but in that case where it's IP only, yes: ZTDNS would have to be aware of it as an exception. I will say in our selfhosting so ...
0 Likes
Alex_HQuest
in Announcing Zero Trust DNS Private Preview on May 06 2024 10:33 AM
When applications and services try to send IPv4 or IPv6 traffic to an IP address that was not learned through ZTDNS (and is not on the manual exceptions list), the traffic will be blocked. This is not because ZTDNS tried to identify malicious or forbidden traffic to block, but because the traffic wa...
0 Likes
tojens
in Announcing Zero Trust DNS Private Preview on May 06 2024 08:13 AM
@bentrigger Not at the moment. Deploying ZTDNS is going to be an incremental, difficult-to-manage process for enterprise admins that requires heavy infra and attention to get right without regressing device connectivity. It's worth it to achieve the kind of Zero Trust lockdown such admins are seekin...
0 Likes