----- Original Message -----
> On Wed, May 28, 2014 at 10:47:13AM -0300, tizo wrote:
> > I would like to know, if having configured trusts services between FreeIPA
> > and Active Directory, allow AD users to authenticate in services that are
> > only configured to authenticate against FreeIPA.
> > 
> > For example, having configured the trusts, if I have a mail server that is
> > using FreeIPA as its authentication method, can a user A from Active
> > Directory, who does not exist in FreeIPA, authenticate in the mail server?.
> It depends a bit on how the users authenticate exactly because IPA
> offers Kerberos and LDAP authentication.
> Kerberos should work out of the box because thats one of the trusts
> components, trusting Kerberos tickets from the other domain/realm.
> For LDAP authentication you should be able to find the users from the
> trusted domain in the compat tree below
> cn=compat,dc=your,dc=ipa,dc=domain . To authenticate the user you can
> do a LDAP bind with the DN form the compat tree and the password used in
> AD.
Please note that the latter is valid only for FreeIPA 3.3 and later. 
FreeIPA 3.0 does not support authentication over LDAP in the compat tree.
/ Alexander Bokovoy

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