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About Google Apps Password Sync

Google Apps Password Sync (GAPS) automatically keeps your users' Google Apps passwords in sync with their Microsoft® Active Directory® passwords. Whenever a user's Active Directory password is changed, GAPS pushes the change to Google Apps immediately.

Important: GAPS never changes your Active Directory passwords; it only syncs Active Directory password changes to Google Apps.

Before you begin

GAPS system requirements
Microsoft Active Directory requirements:
  • Microsoft Active Directory 2008 or 2012 (AD DS, not AD LDS).  

Google Apps requirements:

  • Google Apps for Work, Education, or Government, or Google Apps Unlimited.
Set up your domain controllers
  • GAPS must be installed on all domain controllers.
  • Domain controllers need an Internet connection to connect to the following sites/ports:


    Purpose URL Port number
    API access 443
    Certificate Revocation Lists / Online Certificate Status Protocol


    Note: The certificate authority URLs can change at any point. For the most recent list of CRL/OCSP URLs, review the certificate information of the above API and Authentication hosts.

Download GAPS 

Download the correct MSI for your server's architecture:


See step-by-step instructions on how to Set up Google Apps Password Sync.

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