Samba / NC file permission


I have a folder as external source in my nextcloud.
This folder is also via Samba reachable.

I have sometimes the problem with the file permission.

What I want to have:

  • only valid user, no connect without authentification

my sambs config:
comment = nextCloud Projekte
path = /media/Projekte
valid users = user1, root
force user = www-data
force group = www-data
browseable = yes
writeable = yes
admin users = www-data
public = yes
create mask = 0777
directory mask = 0777

But sometimes i need to set a file to owner root, to change ist via Windows share.

Which file permission is correct, for:

  • nextcloud have full access
  • valid Samba user have full access, when create or modify files

Thank you!

If the folder is external storage, then you shouldn’t need to force user to www-data, just let the user1 own the data, and mount the folder as that user.

You don’t need to add root as a valid user either, root has access anyway.

Are you on Linux and the external storage on a Linux file system? In that case you might want to force permissions to something sensible for Linux.

Here’s a definition I use:

    comment = My stuff
    path = /media/files
    # Two users, only one can write
    valid users = user1, user2
    public = no
    writable = no
    write list = user1
    available = yes
    browsable = yes
    # Masks forces off all unset bits (AND)
    create mask = 640
    directory mask = 750
    # Force modes forces on all set bits (OR)
    force create mode = 640
    force directory mode = 750
    # Name mangling
    case sensitive = yes
    default case = lower
    preserve case = yes
    short preserve case = no
    mangled names = no

In Nextcloud I mount the folder as user1 for user1 and as user2 for user2 - then user1 can write and user2 can only read…

And if I access the files in Linux it’s the same - user1 can write and user2can only read.