Permissions for datasets and folder on truenas scale

TrueNAS General
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1

Hi everyone, I have kind of an issue with permissions on my turnas scale.
I think I dont understand permissions well, but I will try to explain my issue.
I use truenas as SMB share, and I have dataset that her path is /mnt/Media/KTM/Pics.

I have two users called “Ketem” and “Tal” , both of them are member of group “ketem”.
In the end I want that both of them will be able to rwx on some folders.

I give it permission like that :
user root rwx
group ketem rwx
other rwx

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I created a new folder with user “ketem” inside /mnt/Media/KTM/Pics
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now, of course if one user create a new folder, he is the owner of the directory. but what if I created a new directory and I want that the other user will have write permissions too?
for some reason I get an error messege that the user " Tal" dont have write permissions inside “New folder” that located at /mnt/Media/KTM/Pics/New folder that user “ketem” created, even if tal is also part of “ketem” group, and “Ketem” group have RWX permissions .
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In the picture there is group Permission for group “ketem”

Im sure I’m doing something because the two users are on the same group.
I would be happy to get from your knowledge and experience.
thank you very much!

2

Best to use SMB datasets and ACLs for Windows shares.

3

I did try to create a new dataset and choose SMB on dataset present instead of generic, it worked.
thank you!

but what is the diffrence between generic and SMB, if I also choose the same users. group and permissions?
there are some change in the background?

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4

Indeed. For a simple SMB share I think by default builtin_users get modify access but if you like you could add your specific group and remove builtin_users if not wanted.

5

Other changes are shown on the Dataset config under Advanced Options.