Ubuntu ACL Access Control Lists
Jul 30, 2010 · 2 minute readCategory: ubuntu
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Working in Ubuntu, you need to first of all install ACL
sudo apt-get install acl
Now before you can use ACL, you need to enable it on whichever volumes you want to use it on. To do this you have to edit your fstab (which if you do it wrong can cause problems so make sure you back it up!)
In the options column of the fstab for the volume you are working with, you need to add acl, eg:
/dev/mapper/server-root / ext4 errors=remount-ro 0
becomes
/dev/mapper/server-root / ext4 acl,errors=remount-ro 0
Now you need to remount
mount -o remount /
Now you need to check acl is working:
mount | grep acl
you should see a line with acl in there
Now to recursively set an ACL for a particular user giving full access on a folder structure, use this command:
setfacl -Rm u:user:rwX,d:u:user:rwX /path/to/folder
To fully understand ACL, hit the man pages
man acl