@Neustradamus
These are VERY Old Posts…
I see you complaining - for example - about no groups, but you never showed if you tried to create groups.
To hide unneeded (eg AD system users / groups) in Nextcloud, I create a group nextcloud-users.
I use that as primary filter in NextCloud’s LDAP/AD Config panel.
If NO Password is set on the users admin and administrators, those users exist, but are not usable. This is normal in NethServer. Indeed, Microsoft doesn’t set a Password in Windows10 for the Administrator, so that user exists, and is not workable.
AD is from Microsoft, and Samba’s AD does a good job of replicating the services, look & feel of AD.
-> It seems to me you have certain understanding problems of how users / groups work.
And NOT mixing up solutions for different problems gathered from Google / Internet.
Some questions?
Have you created any groups in AD / NethServer?
-> Show them with a current screenshot.
Have you ever enabled either admin or administrator users (By setting a password?).
-> Show the current status of those two users.
You have yet to explain where you saw this “strange” suggestion: “isCriticalSystemObject=TRUE”…
In Google, I only see your entries and some cyrillic, russian stuff. Note: not much cyrillic users seem to use NethServer…
Only 5 entries in Google for:
nextcloud “isCriticalSystemObject=TRUE”
There are plenty of suggestions for just “isCriticalSystemObject=TRUE”, but ALL concern only Microsoft AD on Microsoft !!!
My 2 cents
Andy