no i havent set an authz-policy..

how should be done?

i didnt understand exactly what you said here...

can you give a code sample please

That looks like UNIX domain socket via an ldapi connection, by the root
user (or a user with UID of 0).

You should probably have a mapping for it as well. I map root to the admin
user on my system.

i have to tell you that you give a big help thank you again for everything