On Tue, Nov 21, 2017 at 09:05:29AM +0100, Ronald Wimmer via FreeIPA-users wrote:

Hi,

in IPA I defined a user called isomeuser. This username does definitely not exist on the AD side.

When I log in as root to an IPA client and issue the su command, I am isomeuser@ad.domain. If I do "su isomeuser@ipa.domain" I am isomeuser@ad.domain. The uid and gid are exactly the same.

Why can I be isomeuser@ad.domain if that user does not exist?

I agree this sounds strange.

Do you use the domain lookup order or some options like default_domain_suffix?

Can you show the sssd_nss.log from the IPA client?