How not to improve the security of your ADFS deployment

Introduction I was involved in an ADFS deployment recently where the customer wanted to restrict access from the Internet to their ADFS proxy servers, located on their DMZ. They used ADFS to federate with Windows Azure Active Directory so they only wanted to allow traffic from the Microsoft Online Security Token Service (STS) servers into …

New PowerShell module for Windows Azure Active Directory

A new version of the PowerShell module for Windows Azure Active Directory is available. This module was previously know as the Microsoft Online PowerShell module. The cmdlets all have the word MSOL in them, and the modules are called MSOnline and MSOnlineExtended. The version is still 1.0.0 as were the previous module. New in this …

Understanding X.509 digital certificate thumbprints

Introduction I got an interesting question about X.509 certificate thumbprints today from a colleague. Specifically, he wanted to know if you could renew a certificate and keep the thumbprint. The answer is no, unfortunately. So I thought I would explain why you can’t. Certificate storage The X.509 standard was first issued in 1988 and is …

Norwegian content: How to integrate your on-premise Active Directory with Windows Azure Active Directory

I have published a 5 part blog series on the Norwegian Microsoft TechNet Blog, with step by step instructions for setting up integration between your on-premise Window Server Active Directory Directory Service and Windows Azure Active Directory. It covers concepts, single-sign on with ADFS, Directory Synchronization with the DirSync Tool and troubleshooting. So if you …