Linux Multiple Users Permission Read / Write

ACL provides a more flexible way to control the file permission, e.g. allow multiple users like www-data and ftpuser to read/write the same directory.

1. Install ACL:

CODE

aptitude install acl

2. Edit /etc/fstab and add the "acl" option, e.g.:

CODE

/dev/sda3 / ext3 defaults,errors=remount-ro,acl 0 1

3. Remount the partition:

CODE

mount -o remount /

4. Check to make sure that it is mounted with acl:

CODE

mount | grep acl

5. Add users to ACL:

CODE

setfacl -R -m u:www-data:rwx /path/to/directory setfacl -R -m u:ftpuser:rwx /path/to/directory

It will be very slow if there are many sub-directories. So be specific, e.g. /home/www/http_www.cubbaalumni.org/public_html/file/

6. Check ACL:

CODE

getfacl /path/to/directory

More:
http://serverfault.com/questions/81579/lin...sion-read-write
http://www.linuxquestions.org/questions/ma...pported-266804/