Azure AD Connect: Seamless single sign

2023-05-12 18:10| 来源: 网络整理| 查看: 265

Azure Active Directory Seamless single sign-on Article 05/04/2023 What is Azure Active Directory Seamless single sign-on?

Azure Active Directory Seamless single sign-on (Azure AD Seamless SSO) automatically signs users in when they are on their corporate devices connected to your corporate network. When enabled, users don't need to type in their passwords to sign in to Azure AD, and usually, even type in their usernames. This feature provides your users easy access to your cloud-based applications without needing any additional on-premises components.

Seamless SSO can be combined with either the Password Hash Synchronization or Pass-through Authentication sign-in methods. Seamless SSO is not applicable to Active Directory Federation Services (ADFS).

SSO via primary refresh token vs. Seamless SSO

For Windows 10, Windows Server 2016 and later versions, it鈥檚 recommended to use SSO via primary refresh token (PRT). For Windows 7 and Windows 8.1, it鈥檚 recommended to use Seamless SSO. Seamless SSO needs the user's device to be domain-joined, but it isn't used on Windows 10 Azure AD joined devices or hybrid Azure AD joined devices. SSO on Azure AD joined, Hybrid Azure AD joined, and Azure AD registered devices works based on the Primary Refresh Token (PRT)

SSO via PRT works once devices are registered with Azure AD for hybrid Azure AD joined, Azure AD joined or personal registered devices via Add Work or School Account. For more information on how SSO works with Windows 10 using PRT, see: Primary Refresh Token (PRT) and Azure AD

Key benefits Great user experience Users are automatically signed into both on-premises and cloud-based applications. Users don't have to enter their passwords repeatedly. Easy to deploy & administer No additional components needed on-premises to make this work. Works with any method of cloud authentication - Password Hash Synchronization or Pass-through Authentication. Can be rolled out to some or all your users using Group Policy. Register non-Windows 10 devices with Azure AD without the need for any AD FS infrastructure. This capability needs you to use version 2.1 or later of the workplace-join client. Feature highlights Sign-in username can be either the on-premises default username (userPrincipalName) or another attribute configured in Azure AD Connect (Alternate ID). Both use cases work because Seamless SSO uses the securityIdentifier claim in the Kerberos ticket to look up the corresponding user object in Azure AD. Seamless SSO is an opportunistic feature. If it fails for any reason, the user sign-in experience goes back to its regular behavior - i.e, the user needs to enter their password on the sign-in page. If an application (for example, https://myapps.microsoft.com/contoso.com) forwards a domain_hint (OpenID Connect) or whr (SAML) parameter - identifying your tenant, or login_hint parameter - identifying the user, in its Azure AD sign-in request, users are automatically signed in without them entering usernames or passwords. Users also get a silent sign-on experience if an application (for example, https://contoso.sharepoint.com) sends sign-in requests to Azure AD's endpoints set up as tenants - that is, https://login.microsoftonline.com/contoso.com/ or https://login.microsoftonline.com// - instead of Azure AD's common endpoint - that is, https://login.microsoftonline.com/common/. Sign out is supported. This allows users to choose another Azure AD account to sign in with, instead of being automatically signed in using Seamless SSO automatically. Microsoft 365 Win32 clients (Outlook, Word, Excel, and others) with versions 16.0.8730.xxxx and above are supported using a non-interactive flow. For OneDrive, you'll have to activate the OneDrive silent config feature for a silent sign-on experience. It can be enabled via Azure AD Connect. It's a free feature, and you don't need any paid editions of Azure AD to use it. It's supported on web browser-based clients and Office clients that support modern authentication on platforms and browsers capable of Kerberos authentication: OS\Browser Internet Explorer Microsoft Edge**** Google Chrome Mozilla Firefox Safari Windows 10 Yes* Yes Yes Yes*** N/A Windows 8.1 Yes* Yes**** Yes Yes*** N/A Windows 8 Yes* N/A Yes Yes*** N/A Windows Server 2012 R2 or above Yes** N/A Yes Yes*** N/A Mac OS X N/A N/A Yes*** Yes*** Yes***

Note

Microsoft Edge legacy is no longer supported

*Requires Internet Explorer version 11 or later. (Beginning August 17, 2021, Microsoft 365 apps and services won't support IE 11.)

**Requires Internet Explorer version 11 or later. Disable Enhanced Protected Mode.

***Requires additional configuration.

****Microsoft Edge based on Chromium

Next steps Quick Start - Get up and running Azure AD Seamless SSO. Deployment Plan - Step-by-step deployment plan. Technical Deep Dive - Understand how this feature works. Frequently Asked Questions - Answers to frequently asked questions. Troubleshoot - Learn how to resolve common issues with the feature. UserVoice - For filing new feature requests.

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