How to define and delete a user?

Question

linux

SAmba server, I create a shared directory on it, start users, connect through windows, then create folders and then I found this:
When viewing the security tab, windows for some reason cannot determine the user, and crashes, took a screenshot

printscreen

in samba settings:

map system = no
inherit acls = yes
inherit permissions = yes
inherit owner = yes
map acl inherit = yes
acl group control = true
dos filemode =

yes disappears) but how to find out who he is?

Answer 1

how to find out who he is?

You won't find out so easily from this car. The file system where permissions are set stores user IDs, but no names. Those. the filesystem doesn't know what S-1-22-2-0 is.
The Windows machine doesn't know either, because it doesn't have a local user with that ID.
Knows, probably, Samba.
I wouldn't be surprised if it turns out to be root on a Samb machine.
https://stackoverflow.com/questions/31109871/mappi...