Description of problem: Current, when automatically updating the machine account password winbind only add the new password to the secrets.tdb but does not update the Kerberos keys in the keytab which are derived from the machine account password. As a result, after the update the keytab entries can neither be used for authentication nor to uncrypt and verify server tickets. If 'kerberos method = secrets and keytab' (and maybe for 'system keytab' or 'dedicated keytab' as well?) winbind should create new entries in the keytab with updated KVNO and new hashes derived from the new machine account password. Upstream ticket: https://bugzilla.samba.org/show_bug.cgi?id=6750
We could get the service principal names from the keytab and then create new entries for each of them, however there is an issue with the kvno to get it right.
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release. Therefore, it is being closed. If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.
Hi Andre, thanks for spotting this. yes, this is a strech goal for Q3. I will reopen it. Pavel