Single sign-on is where users are signed in to Office 365 automatically and with no password required when they are already signed in to their domain-joined PC. The DirSync tool is common to both of these scenarios. If you have an on-premises directory then you are going to be choosing between DirSync with password sync and DirSync with Active Directory Federation Services. Office 365 uses Azure Active Directory for storing all user accounts, for all directory lookup, and for doing user sign-in authentication.ĭirSync sends user accounts to Office 365 as a starting point for federated single sign-in, or both user accounts and password hashes for same sign-in. Specifically, it covers what you should review before you synchronize your directory with Azure Active Directory. It also points you to more detailed information, for cases not addressed here. This blog post provides the basic information you need to successfully implement DirSync. You should be able to synchronize your directory to Office 365 in under a day.

DirSync has a wizard-driven install and can be set up in just a few minutes. This tool runs on a Windows Server machine on your network and synchronizes users to the cloud.

The simplest way to achieve this is with the Windows Azure Active Directory Sync Tool (DirSync). If you’re just getting started with Office 365, you’re probably considering how to extend the user directory that you use for accessing internal resources for connecting to cloud resources. Paul Andrew is technical product manager for Identity Management on the Office 365 team.

Office 365 server setting