How Azure AD Kerberos Works
| Posted in Windows Azure AD Kerberos is a modern form of Kerberos for hybrid environments. Read Article
Steve Syfuhs is a developer on the Windows Authentication team at Microsoft.
Kerberos Event ID 27
Windows system Event 27 is raised when Kerberos can't find a key.
Why We Built Azure AD Kerberos
Why do we need Azure AD Kerberos?
Lessons in Disabling RC4 in Active Directory
Customer lessons learned when disabling RC4 in Active Directory.
OPS108: Windows authentication internals in a hybrid world
I recently recorded a presentation on the internals of hybrid Windows authentication. Go watch it.
Identity Delegation in Active Directory
Active Directory delegation is an often misunderstood technology. Here's an in-depth look at how it works.
Preventing UAC Bypass through Kerberos Loopback
User Account Control is a local authorization mechanism. Can you bypass it by going through the network? No. Here's why.
Hybrid Authentication with FIDO
FIDO is how we're tackling passwordless authentication. Have you ever wondered how it works?
Kerberos FAST Armoring
FAST Armoring is a Kerberos extension intended to improve the security of the Kerberos protocol.
Windows and Domain Trusts
Domain trusts are complicated. Here's how they work.
How Azure AD Windows Sign-in Works
Let's talk Azure AD join and what that means to a Windows device. What's it mean to be joined to something?
Kerberos Explained in a Little Too Much Detail
Kerberos is an authenticated key agreement protocol based on the Needham-Schroeder protocol. That's too complicated -- let's break it down a little.
How Authentication Works when you use Remote Desktop
Have you ever wondered how authentication works for things like Remote Desktop?
What Happens When you Type Your Password into Windows?
Have you ever wondered what happens behind the scenes when you type your password into the Windows logon screen and hit enter?
Examining Kerberos Messages with Fiddler
A new extension has been created that lets users read Kerberos messages within Fiddler.