Raising the Functional Levels

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Introduction

The Active Directory (AD) functional levels determine the domain or forest capabilities. For details, see:



Supported Functional Levels

You can set the following functional levels in Active Directory (AD) via samba-tool.

Functional Level Included in Samba Version
2012_R2 4.4 and later*
2012 4.4 and later*
2008_R2 4.0 and later
2008 4.0 and later
2003 4.0 and later

* Functional level is included for use against Windows, but not supported in Samba. Kerberos improvements from Windows Server 2012 and 2012 R2 are not implemented in Samba.

Raising the Domain Functional Level

Using samba-tool

To raise the domain functional level on a Samba Active Directory (AD) domain controller (DC), use samba-tool. For example, to set the domain functional level to 2008_R2:

# samba-tool domain level raise --domain-level=2008_R2

For a list of supported domain functional levels, see Supported Functional Levels.


Using the Windows Active Directory Domains and Trusts Utility

Run the following steps on a Windows machine having the remote server administration tools (RSAT) installed:

  • Log in as domain administrator.
  • Open the Active Directory Domains and Trusts utility.
  • Right-click the domain on the left side and select Raise Domain Functional Level.
Raise Domain Functional Level.png
  • Select the functional level.
  • Click OK.



Raising the Forest Functional Level

Using samba-tool


Using samba-tool

To raise the forest functional level on a Samba Active Directory (AD) domain controller (DC), use samba-tool. For example, to set the forest functional level to 2012_R2:

# samba-tool domain level raise --forest-level=2008_R2

For a list of supported forest functional levels, see Supported Functional Levels.


Using the Windows Active Directory Domains and Trusts Utility

Run the following steps on a Windows machine having the remote server administration tools (RSAT) installed:

  • Log in as domain administrator.
  • Open the Active Directory Domains and Trusts utility.
  • Right-click Active Directory Domains and Trusts on the left side and select Raise Forest Functional Level.
Raise Forest Functional Level.png
  • Select the functional level.
  • Click OK.