Bug 48426 - old knvo are removed from /etc/krb5.keytab during password change with samba >= 4.9
Summary: old knvo are removed from /etc/krb5.keytab during password change with samba ...
Status: RESOLVED WONTFIX
Alias: None
Product: UCS
Classification: Unclassified
Component: Samba4
Version: UCS 4.4
Hardware: Other Linux
: P5 normal
Target Milestone: ---
Assignee: Samba maintainers
QA Contact: Samba maintainers
URL:
Keywords:
Depends on: 49034
Blocks:
  Show dependency tree / graph
 
Reported: 2019-01-04 11:30 CET by Felix Botner
Modified: 2024-06-27 12:10 CEST (History)
1 user (show)

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What kind of report is it?: Development Internal
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Description Felix Botner univentionstaff 2019-01-04 11:30:59 CET 
UCS 4.3 (samba 4.7)

-> ktutil list
1  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

-> bash /usr/lib/univention-server/server_password_change.d/univention-samba4 postchange

-> ktutil list
1  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
2  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

-> bash /usr/lib/univention-server/server_password_change.d/univention-samba4 postchange

-> ktutil list
1  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
2  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
3  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

-> bash /usr/lib/univention-server/server_password_change.d/univention-samba4 postchange

-> ktutil list
1  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
2  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
3  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
4  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

UCS 4.4 (samba 4.9)

-> ktutil list
1  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

-> bash /usr/lib/univention-server/server_password_change.d/univention-samba4 postchange

-> ktutil list
1  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
2  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

-> bash /usr/lib/univention-server/server_password_change.d/univention-samba4 postchange

-> ktutil list
2  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
3  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

-> bash /usr/lib/univention-server/server_password_change.d/univention-samba4 postchange

-> ktutil list
3  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
4  aes256-cts-hmac-sha1-96  MASTER$@W2K12.TEST
...

UCS 4.4 behavior seems correct but may lead more confusion/problems during server password change.
Comment 1 Felix Botner univentionstaff 2019-01-04 11:33:14 CET 
We have a product test which performs a server password change, afterwards ucs-test-samba4 are started and in UCS 4.4 51_samba4.62server_password_change_drs_replication.test now fails because of this problem.

Added a samba restart for all DC's in product-tests/samba/multi-server.cfg.
Comment 2 Jan-Luca Kiok univentionstaff 2024-06-27 12:10:28 CEST 
This issue has been filed against UCS 4.4.

UCS 4.4 is out of general maintenance and components may have vastly changed in later releases. Thus, this issue is now being closed.

If this issue still occurs in newer versions, please use "Clone this bug" or reopen this issue. In this case please provide detailed information on how this issue is affecting you.