To Change an ACL Entry

1. Display the File Manager Properties dialog box as described in "To View a File or Folder's ACL Entries".

2. Select an entry in the access control list area to be changed.

3. Click the Change button at the right of the ACL area to display the Change Access List Entry dialog box.

   If you have selected an entry of type User, Group, Default User, or Default Group, the dialog box displays a Type menu and you can change the type. If you select Mask, Default Owning User, Default Owning Group, Default Other, or Default Mask, there is no ACL type menu button and the type is fixed. See the figure below, which is an example of changing a Default Mask entry.

   Figure 5-9 File Manager Change ACL

   
   

4. Specify the type of ACL entry.

   The type will be limited as discussed in Step 3.

5. Specify the name (if enabled) and if you wish to change it.

6. Click the permissions you wish to enable (or disable).

   A check mark means that the permission is enabled. If you select a permission that will be overridden by the mask, a warning will be displayed in the message display area at the bottom of the dialog box, along with a beep. The effective permissions column will indicate the difference. You are nonetheless allowed to make the entry and it will take effect if the mask is modified later.

7. Click Change in the dialog box.

   This modifies the entry, causing the modification to be displayed in the Access Control List area. Remember that if you select Mask, your modifications may change the effectiveness of the entries for specified users and groups and for the owner's group.

8. To specify the target item(s) for the permissions or ACL entries that you specified, select the appropriate target in the Apply Changes To option menu at the bottom of the window (see Figure 5-7).

   You can select the current file, all files in the parent folder, or all files in the parent folder and its subfolders.

9. Click OK or Apply to save the ACL entry changes (and any permissions you have changed).