I have a public SMB share mainly as a media dump. Everyone can read and write, without any auth - as intended. However, if I copy files via SSH (as a regular user, not the samba user), these files are of course owned by that user and thus not writable for the samba user - so I can’t touch these files via SMB.
My config looks like this
[public]
path = /path/to/samba/public
guest ok = yes
writeable = yes
browseable = yes
create mask = 0664
directory mask = 0775
force user = sambapub
force group = users
I can fix the permissions by simply chown/chmod all files, but that’s not really a solution.
Untested Evil Method, Not Really Recommended: format the backing file system in vfat, which has no notion of file ownership.
My hacky way was to make sure group ID on each computer matches and have the directory writable by the group. I also make sure user ID is different so I can identify who created it. It was easy for me because I only have to worry about 2 computers plus my NAS.
Add the sticky group bit to the directory so that new files are created with the group of the directory.
chmod 2775 /path/to/samba/public``` Now any new file will have group "users".