Principal attributes and policy in LDAP Realm

[Savitha R]

>>> On Sat, Jun 7, 2008 at  1:46 AM, in message
<1212783367.27162.15.camel at klausk.br.ibm.com>, Klaus Heinrich Kiwi
<klausk at linux.vnet.ibm.com> wrote: 
> Hi,
> 
>  I hav some questions regarding how data is organized when using the
> LDAP KDB plugin for a realm. I hope this is the right place to ask.
> 
> I have a Realm set-up using the LDAP backend. First thing is: when
> querying a principal using kadmin, why attributes such as 'Last
> [successful,failed] authentication' and 'Failed password attempts' are
> never filled-up? After failing some authentication attempts I have the
> following:
> ...
> Last modified: Fri Jun 06 16:24:09 BRT 2008 (klaus/admin at MYREALM)
> Last successful authentication: [never]
> Last failed authentication: [never]
> Failed password attempts: 0
> ...
> 
These attributes are updated only when the KDC is built with the
 "--with-kdc-kdb-update" option.

> Also, where in the LDAP database is the 'last modified' attribute
> placed?
> 
Last modification time is part of tl_data and entry's tl_data is stored 
in krbExtraData attribute.

-Savitha