How Azure AD Connect work?
Azure AD Connect by default is a one-way Sync which synchronize the On-Premise AD objects to Azure AD.
Management Agents – Question can be asked like what is Management Agent in AD Connect?
Management Agents in Azure AD Connect control the data flow between a connected data source and the Meta directory. DirSync or Azure AD Connect uses two management agents.
- Active Directory Connector management agent
- Microsoft Azure Active Directory management agent
DirSync or Azure AD Connect stores the information in two places: Question can be asked like what is Connector Space & Metaverse
- Connector Space
Connect Space has the Replica of the managed objects in the AD DS and each management agent or connector has its own connector space
Aggregate information about a managed object (that is, User, Group, etc.)
Azure AD Connect Synchronization data flow:
- User object is imported from On-Premise AD into the Active Directory Connector space
- User object is projected to the Metaverse
- User object is provisioned to the Microsoft Azure Active Directory Connector space
- User object exported to the Office 365 Admin Web Service
What is Azure Active Directory, what we can do with Azure AD?
Azure AD is a multi-tenant service that provides enterprise-level identity and access management for Microsoft Cloud. Build to support global scale, reliability and availability. Azure AD is backed by a 99.99% SLA for Azure AD Premium or Basic.
Used to manage users and access to cloud resources. On-premise AD extended to cloud using Azure AD. It provided SSO across your cloud applications. MFA and Conditional Access in Azure AD enabled to reduce risk.
What is the Active Directory Federation Service?
Active Directory Federation Services provides access control and single sign on across a wide variety of applications including Office 365, cloud based SaaS applications, and applications on the corporate network.
For the IT organization, it enables you to provide sign on and access control to both modern and legacy applications based on the same set of credentials and policies.
For the user, it provides seamless sign on using the same credentials.
For the developer, it provides an easy way to authenticate users whose identities live in the organizational directory so that you can focus your efforts on your application, not authentication or identity.
What is new in ADFS in Windows Server 2016?
- Eliminate Passwords from Extranet – three new options for sign on without passwords, enabling organizations to avoid risk of network compromise from phished, leaked or stolen passwords.
- Sign-in with Azure MFA
- Password-less Access from Compliant Devices
- Moving from AD FS in Windows Server 2012 R2 to AD FS in Windows Server 2016 is easier
- Streamlined auditing for easier administrative management
- Customize sign in experience for AD FS applications
- Enable sign on with non-AD LDAP directories
- Configure access control policies without having to know claim rules language
What are the requirement to deploy ADFS 2016?
- AD FS requires Domain controllers running Windows Server 2008 or later
- Domain functional level has to Windows 2003 or later
- If client certificate authentication planned, then Windows 2008 functional level or higher require.
- If it is a new ADFS 2016 deployment, AD 2016 schema is required.
- Any standard account can be used as a service account
- Group Managed Service accounts required windows 2012 or higher
- For Kerberos Authentication, service principal name must be registered on the ADFS service account
- SSL Certificate for ADFS and Web Application Proxy from 3rd party certificate provider
- Token Signing and Token encrypting/decrypting certificate can be self-signed
What are the mailbox migration options available for Office 365 migration?
Cutover Migration – Migrate all mailboxes at once. We can use this type of migration if you’re customer is running Exchange 2003, Exchange 2007, Exchange 2010, or Exchange 2013
Staged Migration – Migrate mailboxes in batches. Staged migration can be used with Exchange 2003 or Exchange 2007 customers
Hybrid Migration – Migrate mailbox using an integrated Exchange Server and Office 365 environment. Hybrid migration is used when you need to maintain both on-premises and online mailboxes for your customer while you gradually migrate users and email to Office 365
IMAP Migration – IMAP migration used to migrate email from Gmail, Exchange, and other email systems that support IMAP migration. When you migrate the user’s email by using IMAP migration, only the items in the users’ inbox or other mail folders are migrated. Contacts, calendar items, and tasks can’t be migrated with IMAP, but they can be by a user.
IMAP migration also doesn’t create mailboxes in Office 365. We need to create a mailbox for each user before you migrate their email.
What is the different between Staged Migration and Hybrid Migration?
Staged migration is used when using Exchange 2007 or Exchange 2010, we will not get full Hybrid experience when we do staged migrations for example Out Of Office set on a mailbox and if migrated to Office 365, it will not carry forward the OOO settings. Outlook Anywhere is used to migrated the mailbox migration from Exchange On-Premise to Office 365.
Hybrid Migration provides full hybrid experience. It uses MRS Proxy Migration endpoints (EWS) for migration.
What is a Hybrid Configuration?
Hybrid Configuration deployment offers organizations the ability to extend the on-premise exchange experience and administrative control they have with their existing on-premise exchange organization to the cloud. Hybrid deployment provides seems look and feel of a single Exchange organization between an on-premises Exchange organization and Exchange Online in Office 365. Hybrid configuration serve as an intermediate step to move completely to an Exchange Online Organization.
You are an IT administrator for a company with On-Premise Exchange deployment, your manager asked you to implement Hybrid Exchange Infrastructure, and you need to keep half the mailbox in Exchange Online. What are the prerequisites to have Hybrid Exchange Deployment and in which order you deploy those prerequisites? – Important Question.
- On-Premise exchange organization prepared so that we have supported version of Exchange server for Hybrid Configuration. If we Exchange 2007 then we need to run the Hybrid Configuration from an Exchange 2013 Server, though it is supported in Exchange 2010. Latest Cumulative update or N (latest update)-1 update to be installed in Exchange Server.
- All the default Roles to be available in the Exchange Organization, for example if it is Exchange 2010, Mailbox, Hub Transport and Client Access and If Exchange 2013, Mailbox and Client Access Role to be installed on the same server.
- Office 365 Subscription that supports Directory Synchronization required.
- All the custom domains used in your On-Premise added and verified in Office 365.
- Install and configure Azure AD Connect and enable the Directory Synchronization. In parallel, configure ADFS and ADFS Proxy servers to have Single Sign On Experience.
- Validate the Autodiscover record points to On-Premise Exchange 2013 client access server.
- Add the Office 365 organization in the On-Premise Exchange Admin center.
- Install and assign Exchange service to a valid digital certificate from a third party provider.
- Deploy edge server for Hybrid Secure Mail flow and configure Edge Sync, which is necessary.
- Run the Hybrid Configuration Wizard
- Do a pilot mailbox move and validate all the functionalities are working before the mass rollout.
- You have UM enabled mailbox in your Exchange environment and want to migrate them to Office 365. What you will do to move UM enabled mailboxes to Office 365?
- In addition to Exchange Hybrid deployment, Lync 2013 or Skype for Business Server 2015 integrated with on-premise telephony system, Skype for Business Online integrated with your on-premise telephony system, or a traditional on-premise PBX or IP-PBX solution is required. UM mailbox policy created in Exchange Online should mirror the Exchange On-Premise UM mailbox policy.