Eiciel

Eiciel is a standalone tool and a Nautilus plugin to graphically

edit Access Control Lists (ACL) of your files. ACLs allow to set

more fine-grained permissions than the traditional Unix permissions

of user, group, other (UGO permissions).

Eiciel also allows to edit the extended attributes of files and

directories if the filesystem supports it.

Not all filesystems support ACLs and extended attributes. And even for

those supporting them, they must be enabled (by the system administrator)

before using Eiciel.