[Samba] Not possible to chown as guest?
wempwer at gmail.com
Fri May 26 20:18:25 UTC 2017
On 5/27/17, Rowland Penny via samba <samba at lists.samba.org> wrote:
> On Sat, 27 May 2017 04:31:07 +0900
> john smith via samba <samba at lists.samba.org> wrote:
>> > getent passwd nobody
>> > nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
>> Ok, I know that. Please read my 1st post more carefully. I added my
>> nobody user to users group. I can log in as nobody on the server and
>> do `chown nobody:users <FILE>.
> To login, you must have given 'nobody' a password, given it a home
> directory and a shell that lets it login. Or do you mean that you can
> connect to a share as the user 'nobody' although this would still
> mean that 'nobody' has a password.
First I log in as root into my OpenWRT router and then just do `su
nobody'. Of course I had to enable nobody first by changing its shell
from /var/false to /bin/ash. After doing `su nobody':
uid=65534(nobody) gid=65534(nogroup) groups=100(users),65534(nogroup)
Note that it belongs to users group. As a user nobody I can create a file:
$ touch FILE
$ ls -l FILE
-rw-r--r-- 1 nobody nogroup 0 May 26 22:12 FILE
And change the file's group to users:
$ chown nobody:users FILE
$ ls -l FILE
-rw-r--r-- 1 nobody users 0 May 26 22:12 FILE
And it works.
Now, on my Linux box in /mnt/r when the router share is mounted as guest:
$ chown ja:users TEST-FILE
chown: changing ownership of 'TEST-FILE': Permission denied
I pasted the logs, both strace and Samba logs from the router in my
> still think this is a good idea ???
No, I don't. I suggested 4 alternative ways to solve this problem in
my first post. I just want to know why can't I do chown as a guest in
a mounted directory.
<wempwer at gmail.com>
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