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2,667

NTLM vs Kerberos

JoshMora on Apr 23 2024 07:47 AM
In this post, we will go through the basics of NTLM and Kerberos. We will explain using the three Ws, covering what the ...
1,930

Speaking in Ciphers and other Enigmatic tongues fresh content update!

JIMT05 on Apr 03 2024 04:27 AM
This article was first published on TechNet on Dec 08, 2015, Hi! Jim Tierney here again to talk to you about Cryptograph...
20.1K

THIS JUST IN!!!!  High LSASS Usage After Windows Update 3B March 2024

JIMT05 on Mar 25 2024 03:16 PM
THIS JUST IN!!!! High LSASS Usage After Windows Update 3B March 2024 
3,849

We need to discuss the Microsoft Certification Authority Web Enrollment (CAWE) Role

RobGreene on Mar 14 2024 03:17 PM
Hello everyone, this is Rob Greene. I recently had a case where a customer was having trouble with the CAWE pages. I rea...
3,526

So, you think you’re ready for enforcing AES for Kerberos?

Chris_Cartwright on Mar 08 2024 03:45 PM
We have many customers asking questions about how to track down the usage of RC4 in their environment. Over the years, w...
2,395

Stop Worrying and Love the Outage, Vol II: DCs, custom ports, and Firewalls/ACLs

Chris_Cartwright on Feb 26 2024 01:32 PM
Today, we focus on an aspect of security theater that is constantly producing outages: Messing with Active Directory por...
14.4K

Stop Worrying and Love the Outage, Vol I: Group Policy and Sharing Violations

Chris_Cartwright on Jan 26 2024 07:43 AM
Today, we delve into why it really does matter where you edit group policy.
3,545

KRB_AP_ERR_BAD_INTEGRITY

jessev on Jan 12 2024 01:38 PM
8,222

Windows Server vNext at Microsoft Ignite, and What's New in Active Directory Technical Takeoff

Ryan Ries on Nov 28 2023 12:48 PM
Hey everybody, Ryan Ries here with a quick heads-up that there is some hot-off-the-presses content you need to check out...
23.2K

Preview of SAN URI for Certificate Strong Mapping for KB5014754

Ryan Ries on Apr 06 2023 08:33 PM
Hello, this is Matthew Palko, senior product management lead in Enterprise & Security, and today I have some information...
16.3K

Having issues since deploying November 2022 Security Updates to your domain controller?

DavidFisher on Dec 13 2022 01:36 PM
Hello, Chris here from Directory Services support team. Taking a breather from the phone calls. In the past few weeks, t...
20.3K

So, you say your DC’s memory is getting all used up after installing November 2022 security update

DavidFisher on Dec 13 2022 01:35 PM
After installing the November 2022/Out of Band update on your domain controllers you might experience a memory leak happ...
431K

What happened to Kerberos Authentication after installing the November 2022/OOB updates?

DavidFisher on Dec 13 2022 01:35 PM
With the November 2022 security update, some things were changed as to how the Kerberos Key Distribution Center (KDC) Se...
60.8K

November 2022 Out of Band update released! Take action!

JR_Nieves on Nov 18 2022 03:53 PM
Greetings from the Windows Directory Services team!The team wanted to bring to your attention the November 17th, 2022 re...
39.7K

Active Directory Web Services Event 1202

Ryan Ries on Jul 10 2020 07:07 AM
Hey there! Josh Mora here, with a brief post on an issue I recently had and wanted to make public, in hopes this will he...
34.4K

Deep Dive: Active Directory ESE Version Store Changes in Server 2019

Ryan Ries on Apr 04 2019 08:30 PM
First published on TechNet on Oct 02, 2018 Hey everybody.
48.4K

TLS Handshake errors and connection timeouts? Maybe it’s the CTL engine….

Ryan Ries on Apr 04 2019 08:29 PM
First published on TechNet on Apr 10, 2018 Hi There! Marius and Tolu from the Directory Services Escalation Team.
20.6K

ESE Deep Dive: Part 1: The Anatomy of an ESE database

Lindakup on Apr 04 2019 08:28 PM
First published on TechNet on Dec 04, 2017 hi!Get your crash helmets on and strap into your seatbelts for a JET engine /...
17.7K

Introducing Lingering Object Liquidator v2

Ryan Ries on Apr 04 2019 08:25 PM
First published on TechNet on Oct 09, 2017 Greetings again AskDS!Ryan Ries here.
7,762

Active Directory Experts: apply within

JustinTurner on Apr 04 2019 08:25 PM
First published on TechNet on Jul 26, 2017 Hi all! Justin Turner here from the Directory Services team with a brief anno...
16.8K

Using Debugging Tools to Find Token and Session Leaks

Ryan Ries on Apr 04 2019 08:25 PM
First published on TechNet on Apr 05, 2017 Hello AskDS readers and Identity aficionados.
19K

Troubleshooting failed password changes after installing MS16-101

Lindakup on Apr 04 2019 08:21 PM
First published on TechNet on Oct 13, 2016 Hi!Linda Taylor here, Senior Escalation Engineer in the Directory Services sp...
11.8K

Access-Based Enumeration (ABE) Troubleshooting (part 2 of 2)

JustinTurner on Apr 04 2019 08:20 PM
First published on TechNet on Sep 21, 2016 Hello everyone! Hubert from the German Networking Team here again with part t...
35K

Access-Based Enumeration (ABE) Concepts (part 1 of 2)

JustinTurner on Apr 04 2019 08:20 PM
First published on TechNet on Sep 01, 2016 Hello everyone, Hubert from the German Networking Team here.

Latest Comments

RobGreene
in What happened to Kerberos Authentication after installing the November 2022/OOB updates? on May 13 2024 01:35 PM
@Angelo111 You would need to give way more information than this to be able to tell you what would happen. However the first thing to do is to look at everything individually first. The goal is to first look at what encryption type is supported for each then apply the masking to remove encryption ty...
0 Likes
Angelo111
in What happened to Kerberos Authentication after installing the November 2022/OOB updates? on May 07 2024 01:43 AM
Most confusing Article, what happens when RC4 is disabled in an environment, does session keys and service ticket are encrypted with AES.what happens if Ms-dsencryption type is not set and RC4 is disabled Thanks
0 Likes
Kjh55
in Windows Server vNext at Microsoft Ignite, and What's New in Active Directory Technical Takeoff on May 06 2024 03:28 AM
Many mid to large organisations worldwide continue to rely heavily on Active Directory, often in conjunction with Entra ID in hybrid setups. Microsoft's focus on Entra ID is evident through regular announcements and significant investment, yet Active Directory, a crucial component of an organisation...
0 Likes
thesquirrel1130
in NTLM Blocking and You: Application Analysis and Auditing Methodologies in Windows 7 on May 03 2024 01:46 PM
Anyone else finding that when you start blocking NTLM outbound you start getting outbound blocked (NULL) events? So far I haven't found anyone else post about it but it blocks GPO preferences from being applied correctly as we get the error 4106: Group Policy Object did not apply because its targeti...
0 Likes
Tom_K
in NTLM vs Kerberos on May 03 2024 10:44 AM
Thank you for the links. This is actually about getting rid of NTLM altogether. The Steve Syfuhs links, including the video, look interesting.
0 Likes