setting permissions on ntfs drives for mac

Setting Permissions On Ntfs Drives Plus The Ability

Figure C shows the Permission Entry For Data dialog box that will open.

When you use the NT file system (NTFS) in Windows XP, however, you can set file permissions at the local PC level.

That means that a user sitting down at a PC, not just a user accessing the resource across a network, is bound by NTFS permissions.

NTFS permissions, which can be set only on drives partitioned with NTFS, can be assigned to drives and folders, just like sharing permissions, but they also can be assigned to individual files.

Unlike sharing permissions, in which the default setting for a resource is Not Shared, NTFS permissions are set to allow access by default.

In this Daily Drill Down, well cover the details of NTFS permissions in Windows XP.

With an understanding of how NTFS permissions work, youll be able to troubleshoot permission issues more quickly as they occur on your network and clients.

If youre a little fuzzy on the differences between share permissions and NTFS permissions, check out our Daily Drill Down on Establish the correct file-sharing permissions in Windows XP.

Setting Permissions On Ntfs Drives Plus The Ability

For files, you can assign these permissions: Read: Open the file and view its attributes, ownership, and permissions Read Execute: Same as Read, plus the ability to run applications Write: Same as Read, plus the ability to change file content and attributes Modify: Same as Write and Read Execute combined, plus the ability to delete the file Full Control: Same as Modify, plus the ability to change permissions and take ownership Special Permissions: Allows you to customize permissions on files by selecting the individual components of the standard sets of permissions Just like sharing permissions, NTFS permissions can be set to Allow with the Allow check box.

Permissions are cumulative and can be inherited from parent folders or drives.

NTFS permissions can also be set to Deny, but you should use Deny sparingly because it overrides more lenient permissions.

For example, if you set Read access for a folder to Deny and the drive on which the folder resides allows Full Control, everything on that drive will have Full Control access except for that folder, which will have no access at all.

Figure A Setting NTFS permissions on the Security tab on the Data folders Properties box To set NTFS permissions, use the Security tab on the Properties page for a drive, folder, or file.

The controls will seem familiar; theyre almost the same as the ones for setting sharing permissions (see Figure A ).

Special access permissions In addition to the normal NTFS permissions, you can use 14 special access permissions.

These let you fine-tune the permissions granted for a particular object.

Theyre not actually separate permissions from the standard ones, but refinements of them.

For example, the standard Read permission actually involves four separate permissions rolled into one.

The special permissions are the four separate settings: Read Data, Read Attributes, Read Permissions, and Read Extended Attributes.

By default, the special access permissions are set according to the standard permission settings you have specified, but you can change them as desired.

Figure B Control access for a resource more precisely from the Advanced Security Settings For Data dialog box.

To view the special permission settings, click the Advanced button on the Security tab to open the Advanced Security Settings For Data dialog box, as shown in Figure B.

Figure C You can set more specific permissions here than are possible with the normal NTFS permissions.

From here, double-click one of the listed users or groups to display the settings for the 14 extra permissions.

Setting Permissions On Ntfs Drives For Mac