ACL problem in CentOS

b_mikhael · 04-15-2014, 06:36 PM

Hi,

I'm trying to set ACL rules on a file, but i can never make it to work.

Here is the steps i follow:
1- mount -o remount,acl /
2- login as user "user1".
3- touch /home/user1/test.txt
4- chmod 700 /home/user1/test.txt
5- setfacl -m u:user2:rw /home/user1/test.txt
6- su user2
7- cat /home/user1/test.txt
cat: /home/user1/test.txt: Permission denied

Any suggestion, what's wrong with what i do???

John VV · 04-15-2014, 06:43 PM

what homework assignment are you trying to do
two things
it might have something to do with -- "chmod 700"
and then loging in as a DIFFERENT user

b_mikhael · 04-15-2014, 07:08 PM

I've tried to create another file with the previous steps but without the "chmod" command, but still the same problem persist.

rknichols · 04-15-2014, 07:33 PM

User2 also needs, at a minimum, "execute" permission in directory /home/user1.

b_mikhael · 04-15-2014, 08:20 PM

it works

after i added execute permission to the directory containing the file, it worked.
i used the following command:

# setfacl -m u:user2:rx /home/user1

John VV · 04-15-2014, 09:18 PM

it would not be wise to let user2 have full read access to user1's home folder

you only want user2 to be able to read that one text file

b_mikhael · 04-16-2014, 12:03 AM

so what do you suggest???

John VV · 04-16-2014, 01:25 AM

what dose the textbook you are using say ?

b_mikhael · 04-16-2014, 12:07 PM

the book says to give ACL permissions to the file and it never mentioned the directory. but when i do as it is written, it does NOT work!!!