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πŸ” Microsoft Entra Connect Setup – Deep Dive Guide for IT Professionals


πŸ› οΈ Installation Overview

  • Download the latest Entra Connect tool from the Microsoft Entra admin center.
  • Run the installer on a domain-joined Windows Server (2016 or later, full GUI).
  • Choose between:
    • Express Setup: Ideal for single AD forest, <100K objects.
    • Custom Setup: For multi-forest, advanced sync, or SQL customization.

πŸ” User Sign-In Options

  • Password Hash Sync: Cloud-based authentication using AD password hash.
  • Pass-through Authentication (PTA): Validates credentials directly with on-prem AD.
  • Federation (AD FS or PingFederate): Redirects sign-in to on-prem federation service.
  • Single Sign-On (SSO): Optional with hash sync or PTA for seamless access.

  • Β Connect to AD DS using either:
    • A newly created service account (recommended).
    • An existing account with read permissions.

  • Configure:
    • Domain & OU filtering.
    • User matching rules (UPN, source anchor).
    • Optional features like password writeback, device writeback, group writeback.

πŸ“Š Post-Setup Verification

  • Use Synchronization Service Manager to monitor sync status.
  • Check Microsoft 365 Admin Center or Entra Admin Center for sync health and errors.
  • Sync runs every 30 minutes by default.


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