Supported Domain and Forest Functionality Levels

Samba’s current distribution supports domain and forest functionality up to Windows 2016 at most.

Supported Functionality Levels

SambaBox supports the following domain and forest functionality levels:

  • Windows 2008 R2

  • Windows 2012

  • Windows 2012 R2

  • Windows 2016

Adjusting Functionality Levels

If you need to adjust your domain and forest functionality levels, execute the following commands in the PowerShell (run as administrator) of the Active Directory server.

To set ForestMode:

Set-ADForestMode -Identity DOMAINNAME -ForestMode Windows2016Forest

To set DomainMode:

Set-ADDomainMode -Identity DOMAINNAME -DomainMode Windows2016Domain

DOMAINNAME

Domain name

Warning

Important: Your domain must not have an operating system lower than forest and domain functionality level. If you set the functionality level to Windows 2016, all domain controllers must be running Windows Server 2016 or higher. Do not change these levels without making these checks, as it may cause your domain controllers to be dropped from the domain.

Compatibility Notes

  • Ensure all domain controllers meet the minimum OS requirements for the selected functionality level

  • Test the functionality level change in a non-production environment first

  • Back up your Active Directory before making any changes

  • Functionality level changes are irreversible without restoring from backup