DK KASHAYAP OPENSOURCE: linux acl howto Configure:

linux acl howto Configure:

Step 1

Enable ACL support on the partition.

Edit /etc/fstab file and change the default parameter to rw,acl

If we want to enable acl for /home

LABEL=/                 /                       ext3    defaults        1 1
LABEL=/boot             /boot                   ext3    defaults        1 2

LABEL=/home             /home                   ext3    rw,acl          1 2
LABEL=/tmp              /tmp                    ext3    defaults        1 2
LABEL=/usr              /usr                    ext3    defaults        1 2
LABEL=/var              /var                    ext3    defaults        1 2
/dev/hda8               swap                    swap    defaults        0 0
/dev/hdd1               /Data                   ext3    ro,noatime      1 2
LABEL=/XFS              /XFS                    xfs     rw,noatime      0 2

Reboot the system. If the partition is not in use, you can unmount and remount the partition

#sudo umount /home

#sudo mount /home

Step 2

Create user and group

#useradd user1

#groupadd group1

#usermod -a -G group1 user1

Step 3

Default ACL

Now you can enable ACL by using setfacl command

#mkdir /home/folder1

#chgrp group1 /home/folder1

#chmod g+w /home/folder1

#setfacl --set u::rwx,g::r-x,o::- /home/folder1

To set ACL

#setfacl -d --set u::rwx,u:user1:rwx,g::rx,g:group1:rx,o::- /home/folder1

To view the acl

# getfacl /home/folder1/

# file: home/folder1/
# owner: root
# group: group1
user::rwx
group::r-x
other::---
default:user::rwx
default:user:user1:rwx
default:group::r-x
default:group:group1:r-x
default:mask::rwx
default:other::---