file changed to read-only when other people change its contents

[freenasbbs]

My freenas version :FreeNAS-9.3-STABLE-201506292332

CIFS share

Code:

user :kf1		   group:kf
user:kf2			group:kf

Folder D,and its acl is

Code:

group:kf:rwxpDdaARWc--s:fd----:allow

user :kf1 create one file (file A) in folder D, and kf1 can modify this file (A) .

But when kf2 (or other anyone，but not file's owner :kf1) open this file (A) and modify A's contents, then save it.

problem:
after this file (A) be saved by other people (not file's owner), its read-only attributes will be check. like pic

and then, it can't be modify or deleted by any people,even its owner kf1..

it only can be deleted with ssh.

I don't know why, please help, thanks.

 

[m0nkey_]

https://forums.freenas.org/index.php?resources/freenas-and-samba-smb-permissions-video.8/

 

[freenasbbs]

thanks mOnkey_
I have seen your video ,thanks a lot
but i am sorry
I still can't find the reason and solution for my freenas.

file's acl and windows secutiy attributes show : people in group kf can modify this file...
but actually ,after one people(not file's owner) save this file and then no one can modify it again.file's read-only attributes will be checked and can't remove it....

i don't konw , people only modify file's contents ,but why it's read-only attributes will be check automatically.

by the way .my another freenas (version :9.2.1.9) dose not have this problem. i compare their's setting,they looks the same