Difference between revisions of "ACL"

From Blue-IT.org Wiki

 
(ACL)
Line 1: Line 1:
=ACL=
 
 
==Use Case==
 
==Use Case==
 
* Peter, Paul and Mary are working with one directory tree. They share, use and edit the same files. They all belong to the system group ''users''. But the directory the should be able to write on belongs to the group ''exchange''.
 
* Peter, Paul and Mary are working with one directory tree. They share, use and edit the same files. They all belong to the system group ''users''. But the directory the should be able to write on belongs to the group ''exchange''.

Revision as of 15:24, 25 November 2007

Use Case

  • Peter, Paul and Mary are working with one directory tree. They share, use and edit the same files. They all belong to the system group users. But the directory the should be able to write on belongs to the group exchange.

Links

Enable ACL

Enable the ACL's in fstab

/etc/fstab
/home   /dev/hdx   ext3   defaults,exec,acl   1 2

Create a new group exchange

Create the new group exchange. In some cases it could be wise to create a user with the same name too, with its own home directory and the default group exchange. Don't forget to set the default group for the user.

chgrp exchange /home/exchange/
chmod g+s /home/exchange

Add ACL support

Changing the default umask for the certain directory and all subdirectories

setfacl -d -m mask:007 /home/exchange/


Now every file from any user accessing this directory will be readably/writable for the group exchange.