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FreeIPA: centralized identity management for Linux

FreeIPA: centralized identity management for Linux

Posted Dec 13, 2012 17:43 UTC (Thu) by drag (subscriber, #31333)
In reply to: FreeIPA: centralized identity management for Linux by bkw1a
Parent article: FreeIPA: centralized identity management for Linux

Nothing directly yet. Obviously they would love to have FreeIPA support Windows clients properly. Windows is very important to institutions nowadays and I expect that it's far easier and more effective to get AD to work with Linux then it is to get FreeIPA to work with Windows.

Samba 4 may be able to provide that 'AD connector' functionality for FreeIPA in the future, but last time I checked there remained lots of work to get to that point.

Not sure of any of the details.


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FreeIPA: centralized identity management for Linux

Posted Dec 13, 2012 17:49 UTC (Thu) by drag (subscriber, #31333) [Link]

A never mind. It is clear I need to do more reading up on the AD trust relationship feature.

FreeIPA: centralized identity management for Linux

Posted Dec 14, 2012 0:25 UTC (Fri) by jldugger (subscriber, #57576) [Link]

It's just a Kerberos Trust; the O'Reilly Kerberos book explains them if you're curious.

FreeIPA: centralized identity management for Linux

Posted Dec 14, 2012 11:49 UTC (Fri) by ab (subscriber, #788) [Link]

Samba4 AD DC does not support cross-realm trusts between different forests yet. Thus, it is not yet possible to use AD trusts feature of FreeIPA 3.x to connect two separate installs, Samba 4 AD DC and FreeIPA. Once we'll get cross-realm trusts working for cross-forest case in Samba 4 AD DC, an AD trust between FreeIPA and Samba 4 AD DC should start working as well.

Yes, it is mostly Kerberos trust once it is established, except for a lot of small details on verifying ticket extensions in MS-PAC structure (documented in MS-KILE spec) which change over time, and resolution of SIDs (MS-PAC records SIDs, not group or user names so one has to resolve them first to use) which is a complicated matter in complex topologies.

However, in order to establish AD trust one need to use SMB protocol and MS-RPC services. You may want to look at http://freeipa.org/page/IPAv3_Architecture to get some high level overview on what's happenning. The page has some outdated material though, I'm working on updating it as we speek.


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