How to create Samba share accessible writable, readable but undeletable

Question

I need to create Samaba share that contains directories and files undeletable for everybody but everybody must have permissions rwx. Is there is some bypass way tom make it? P.S. On the server(Linux) side it can have any permissions.But can't be deleted from Windows(may be in this way)

score 0 · Answer 1 · answered Apr 17 '18 at 14:35

0

Write permission means delete permission as well, here's how:

If user has to have write permission, he can also "delete" file by writing single byte into the file and thus to delete all other content of that file. There is no way that Samba detects OS, and based on that gives certain permissions.

answered Apr 17 '18 at 14:35

spaceman117X

460

I think that I can do that, but... I have to write high level application which will be determine delete option if user has specifically permissions. But I was hope that samba has this layer permission... Ofcourse on the OS level it's impossible – Vladyslav Greyswandir Jul 18 '18 at 07:44

score 0 · Answer 2 · answered Apr 17 '18 at 15:10

0

You could use the chattr +a <directory> command to make the directory append-only at the filesystem level. Samba should not be able to side-step that. See this question:

What is the effect of "chattr +a" on a directory

answered Apr 17 '18 at 15:10

telcoM

96,466

It's impossible, as I see. But I have solution for my case. Is to add mkdir to crontab – Vladyslav Greyswandir Jul 17 '18 at 08:57

How to create Samba share accessible writable, readable but undeletable

2 Answers2