[Freeipa-users] FreeIPA ActiveDire​ctory Integratio​n: Managing AD Users in IPA

[Dmitri Pal]

On 09/13/2014 05:27 PM, Gregor Bregenzer wrote:
> Hi!
>
> There are two ways that you can use to integrate FreeIPA with AD: a.)
> trust b.) synchronization  Here are the pros/cons for both of them:
> http://www.freeipa.org/docs/master/html-desktop/index.html#trust-sync
>
> If you want to manage POSIX attributes for each user can do that with
> either identity management for Unix at AD using the trust, or with the
> synchronzation at FreeIPA. With synchronization you see the users to
> in FreeIPA, but still have to two users to manage - in FreeIPA and AD.
> With the AD trust the sssd daemon running on FreeIPA is proxying all
> request from the client sssd directly to AD
This is not exactly true. SSSD understands that IPA and AD are in trust 
relations. If you use user name and password to login SSSD will turn to 
AD directly without sending password over the wire. If you SSO into the 
linux box the kerberos library (on you windows client) will do all the 
ticket acquisition and redirects.

The proxy is already done for older clients that does not understand 
that IPA is in trust relations with AD.
http://www.freeipa.org/images/2/2e/FreeIPA33-trust.pdf

> , so you see no users in
> FreeIPA, but you have to extend the AD schema using Identity
> Management for unix.

You really have two options: let SSSD to map users dynamically, in this 
case you do not need AD schema extensions or you can extend schema as 
suggested.
The third option that is under development is described in my other reply.

> Also the password policy from the group policy in
> AD is used when you use the AD trust, but on clients with sssd you can
> change the password using kpasswd from Kerberos. If you want to use a
> trust with AD and want to receive the correct GID set in AD then you
> have to use sssd >1.9.x, otherwise you get a different GID (see
> https://www.redhat.com/archives/freeipa-users/2014-September/msg00192.html)
>
> All other stuff such as HBAC etc. can be centrally managed on FreeIPA,
> no matter if you use a trust or synchronzation.
>
> Gregor
>
> 2014-09-13 22:03 GMT+02:00 Traiano Welcome <traiano at gmail.com>:
>> Hi List
>>
>> Currently I have a stable trust relationship going between IPA and Windows
>> AD. I create users and manage passwords in AD, but want to manage the rest
>> in IPA, "the rest" being default shell, default home directory settings,
>> RBAC, HBAC, Selinux  etc ..
>>
>> What I'm expecting it to be able to log into the FreeIPA web interface, and
>> see a synched list of users created in AD appear in the interface, after
>> which I can modify the settings on a per user basis.
>>
>> If that level of granularity is not possible, I would then expect to be able
>> to at least apply an IPA-imposed set of account defaults on and AD user
>> group:
>>
>> - default shell
>> - HBAC rules
>> - Sudo rules
>> - SELinux rules
>> - RBAC
>>
>> Is this possible with FreeIPA? I can't find anything coherent in the
>> documentation that describes an effective way of managing the POSIX
>> attributes of AD users in FreeIPA.
>>
>> Thanks in advance!
>> Traiano
>>
>>
>>
>>
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-- 
Thank you,
Dmitri Pal

Sr. Engineering Manager IdM portfolio
Red Hat, Inc.