How to set ACL in linux Directory Partition File

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How to set ACL in Redhat Fedora Cent OS Ubuntu Linux File System, Directory and Partitions in Command Line.

Set ACL Linux

Step 1

Enable ACL support on the partition.
Edit /etc/fstab file and change the default parameter to rw,acl
If you 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