Change group or permissions when a file is moved to a shared directory on Linux

djole · 02-17-2014, 08:08 AM

I've set up a Linux server accessible with ssh and Samba share. Every user has his own folder USER/ and a public folder USER_public/. Permissions on the USER_public/ are set up using setfacl in such way that every new file created in that folder inherits permissions and ownerships from the parent directory (in this case, read and write permissions for others).
The problem I have is that files that are moved from USER/ to USER_public/ do not inherit these permissions automatically.
Is there a way of making the moved (copied) files to inherit permissions from the parent directory automatically. I want to avoid users manually connecting via ssh and changing the permissions using chmod.
Thank you.
getfacl output :

Code:

# file: user1_public
# owner: user1
# group: group1
# flags: -s-
user::rwx
group::rwx
group:super_group1:rwx
mask::rwx
other::rw-
default:user::rwx
default:group::rwx
default:group:super_group1:rwx
default:mask::rwx
default:other::rw-

yongitz · 02-17-2014, 09:05 AM

have you tried setting the using sticky bit?

Quote:

chmod g+s user1_public

djole · 02-17-2014, 09:47 AM

Quote:

Originally Posted by yongitz

have you tried setting the using sticky bit?

The sticky bit is on, hence the

Code:

#flags -s-

part of the getfacl output.

Also ls -l says:

Code:

drwxrwsrw-+  7 user1   everyone_group      4096 Feb 14 13:28 User1_public

The problem is that the sticky bit seems to work when someone is creating a new file inside of
the PUBLIC folder. If someone is moving a file, the file keeps the permissions from the private folder.

yongitz · 02-17-2014, 11:11 AM

Didn't notice that at first. But I believe that should work even without the sticky bit. I believe the sticky bit would be useful if you change the group of the entire folder to super_group1.

I'll test this out using your setup and will get back to you.

djole · 02-17-2014, 12:19 PM

I've noticed that it applies to files but not to directories and sub elements of said directories.