On Tue, 01 Dec 2015, Petr Spacek wrote:
On 24.11.2015 20:42, Simo Sorce wrote:
Since some time we use the getkeytab operation to fetch keytabs on newer
clients. According to bug #232 setkeytab can be used to circumvent
password quality controls so it needs to be slowly retired.

The attached patches implement #5485 in 2 parts.

The first introduces the option DisableSetKeytab which globally disables
the setkeytab extended operation. This is set to false by default for
backwards compatibility.

The second introduces an option called DisableUserSetKeytab, which is
active by default in new installs (but not in upgraded ones), and only
disables the use of setkeytab for ipa suers, but not for hosts/services.
This is because user's are the ones that may abuse the interface to
escape password policies and users also normally do not acquire keytabs,
so it is a safe bet to disable just them by default in new installs.

On a related note, how this works with plain kadmin & kpasswd protocols?
It is unrelated. We don't support principal manipulation via kadmin

Do I remember correctly that there is no way to download keytab without
re-generating it?
New keytab extended operation allows retrieval without re-generation
since FreeIPA 4.0. See http://www.freeipa.org/page/V4/Keytab_Retrieval
and http://www.freeipa.org/page/V4/Keytab_Retrieval_Management
/ Alexander Bokovoy

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