Hi Steve,

Referring to sssd.conf man page:
default_domain_suffix (string)
This string will be used as a default domain name for all names without a domain name component. The main use case is environments where the primary domain is intended for managing host policies and all users are located in a trusted domain. The option allows those users to log in just with their user name without giving a domain name as well.

Please note that if this option is set all users from the primary domain have to use their fully qualified name, e.g. user@domain.name, to log in

When you have default_domain_suffix set all user queries based on username only will land there. Alternatively you will have to use a fully qualified user name (user@domain)
to explicite point to the domain you want to query. Please take a look at another sssd.conf option which may be useful for your scenario: domain_resolution_order.

Best regards,
Pawel


On Mon, Jul 19, 2021 at 2:34 PM Steve Traylen <stevetraylen@fedoraproject.org> wrote:
sssd-2.5.1-2.el8

With a files domain and an ldap domain in simplified form below then all works well for me and passwd files are checked and win
before ldap entries.

However as soon as `default_domain_suffix = mydomain.ch`  is added then all the password entries never match
since it is presumably looking up `<username>@mydomain.ch`. While I can understand that this may make sense is there a way
forward to continue to look up in shadowutils domain by username only.

I am unsure of default_domain_suffix only appends the suffix or actually forces the lookup to only happen to the mydomain.ch ldap domain.

```
[sssd]
domains = shadowutils, mydomain.ch

[domain/shadowutils]
id_provider = files

full_name_format = %1$s

auth_provider = proxy
proxy_pam_target = sssd-shadowutils

proxy_fast_alias = True

[domain/mydomain.ch]
id_provider = ldap
full_name_format = %1$s
```
Many Thanks

Steve Traylen.
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--

Paweł Poławski

Senior Software Engineer

Red Hat

ppolawsk@redhat.com   

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