Data Domain: Diagnosing Active Directory Users and Joining to an Active Directory with the DD System Manager Interface
Summary: DDOS can diagnose authentication issues for Active Directory from within the DD System Manager interface.
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Instructions
Steps
- Select Administration > Access > Authentication
- Expand the Active Directory/Kerberos Authentication panel.
- Click Diagnose.
- Select an issue to investigate and click Diagnose.
- Provide the requested information.
To diagnose issues logging in as an Active Directory user, provide:- Active Directory server IP address
- Active Directory server FQDN
- Active Directory service username
NOTE: The Active Directory user account specified here requires the following privileges:- Read-only access to the base DN identified by the domain name
- Read-only access to query attributes of all users in the base DN.
- Read-only access to query attributes of the machine accounts for the protection system.
- Active Directory service password
- Username experiencing login failure to diagnose issues joining the system to an Active Directory Domain, provide:
- Active Directory server IP address
- Active Directory server FQDN
- Active Directory service username
- Active Directory service password
- Click Diagnose.
- View the report.
- Click View Report to view the report online. Each item in the Action Items table can be clicked for additional details.
- Click Download to download a copy of the report.
- Review and implement the suggested fixes for the issue and retry the operation.

Affected Products
Data DomainArticle Properties
Article Number: 000204197
Article Type: How To
Last Modified: 16 Sept 2025
Version: 7
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