Bug 38800 - Raise forest and domain function level
Raise forest and domain function level
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Samba4
UCS 4.0
Other Linux
: P5 enhancement (vote)
: UCS 4.1
Assigned To: Felix Botner
Arvid Requate
: interim-1
Depends on:
Blocks:
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Reported: 2015-06-30 14:19 CEST by Janis Meybohm
Modified: 2017-06-01 15:36 CEST (History)
3 users (show)

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Ticket number: 2016120821000501
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Description Janis Meybohm univentionstaff 2015-06-30 14:19:45 CEST
We should raise the forest and domain function level for new installations to 2008 R2
Comment 1 Felix Botner univentionstaff 2015-09-03 19:51:36 CEST
* changelog r63451
* univention-samba4 r63450

after installing samba4 on UCS 4.1-0
-> samba-tool domain level show
Domain and forest function level for domain 'DC=four,DC=test'

Forest function level: (Windows) 2008 R2
Domain function level: (Windows) 2008 R2
Lowest function level of a DC: (Windows) 2008 R2

lets see what the test say
Comment 2 Felix Botner univentionstaff 2015-09-07 09:42:11 CEST
samba4 tests in my env succeeded.
Comment 3 Arvid Requate univentionstaff 2015-10-07 20:00:41 CEST
Ok, this is set during initial provisioning.

Note that this causes a change in Samba4 behavior:

With this increased domain function level Samba4 additionally creates AES 256 and AES 128 Kerberos keys in supplementalCredentials of newly created accounts and during password changes that happen directly against Samba. So in theses cases supplementalCredentials contains the additional "Primary:Kerberos-Newer-Keys" structure. In one environment we have seen problems after raising the domain function level in an existing domain. But this change should be safe, as it only affect new Samba/AD domains.
Comment 4 Stefan Gohmann univentionstaff 2015-11-17 12:12:24 CET
UCS 4.1 has been released:
 https://docs.software-univention.de/release-notes-4.1-0-en.html
 https://docs.software-univention.de/release-notes-4.1-0-de.html

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