Chapter 6 Accessing the Harmonic MediaGrid
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Harmonic MediaGrid Release 4.1
Managing File and Directory Permissions
For detailed information on using ContentManager, refer to the
ContentManager User’s Guide
. For
information on using the Harmonic MediaGrid Windows FSD to manage file and directory
permissions, refer to
Managing File and Directory Permissions
Linux and Macintosh File Permissions
The Linux and Macintosh file permissions are a subset of the Harmonic MediaGrid ACL
interpretation. Three ACEs are used: owner user, owner group and other user.
One ACE is mapped for the owner permission. If the owner belongs to more than one group, the
group at the top of the list is picked up and converted to owner group permission. The other user
permission is mapped to the everyone group including the owner. The default Harmonic
MediaGrid ACL is all access allowed. A newly created file or directory inherits the ACL from its
parent directory.
There can be multiple mounts to Harmonic MediaGrid. The owner of the file/directory is the user
who specified the Harmonic MediaGrid mount command. This user is not necessarily the user
who logged on to the Linux workstation. The user is the local mount’s user if the FSD is used. If
CIFS, NFS, or FTP is used, the user is the user who mounted the ContentBridge.
Harmonic MediaGrid handles permission enforcement. File/directory permission can be changed
using the standard Linux
chmod
command. A changed permission affects three Harmonic
MediaGrid entries: owner, first group to which the owner belongs, and the everyone group.
NOTE:
The user and group name are incorrect when using the
ls -l
command because the user and
group IDs are not set by the FSD.
Managing File and Directory Permissions
The Harmonic MediaGrid FSDs for Windows and Linux support reading and changing file
permissions on the Harmonic MediaGrid file system.
Windows and Linux have different file permission models. It is recommended that only one
operating system be used to manage file permissions to avoid confusing settings.
This section provides an overview of file permissions for both operating systems. See the
documentation accompanying your operating system for more specific information on managing
file permissions.
NOTE:
The client computer must be logged in to the Harmonic MediaGrid file system to manage file
permissions.
Viewing File and Directory Permissions on Windows
1. Right-click
My Computer
and then select
Explore
.
2. Right-click the Harmonic MediaGrid file system or directory within the file system and then
select
Properties
.
The
Properties
dialog box displays.