Azure AD Connect Pre-Reqs
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Azure AD V2 pre-reqs
- An Azure AD tenant
- An on-premises or cloud-hosted (on an Infrastructure as a Service virtual machine) Windows Server running as an AD domain controller (older versions of Windows Server work but some features like password writeback will require 2016 or later)
- Your domain controller must be writable, read-only domain controllers (RODC) are not supported
- Ideally, Azure AD Connect should be installed on a dedicated domain-joined server, but you can also install it on your domain controller (Windows Server 2016 or later with Desktop Experience is required for Azure AD Connect V2)
- AD and AAD accounts for your Azure AD Connect server. Microsoft differentiates accounts used for operating Azure AD Connect and those used for its installation and configuration.
Install pre-reqs
- domain-joined Windows Server 2016 or later
- .Net Framework version required is 4.6.2, or newer
- Windows Server standard or better
- Azure AD Connect server must have a full GUI installed
references: Azure AD Connect: Prerequisites and hardware - Microsoft Entra | Microsoft Docs