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Windows Vista Security: Praxisorientierte Sicherheit für Profis by Marcus Nasarek

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Chapter 11: Securing and Sharing Your Data
Effective Permissions
Because anyone with a user account can belong to multiple groups and those groups
can all have different permissions with regard to a file or folder, it is sometimes difficult
to figure out exactly what permission you or someone else has with regard to a file or
folder. To remove the guesswork involved, Windows Vista lets you view the exact set of
effective permissions for a particular user or group by completing just a few steps.
If you want to view effective permissions, follow these steps:
1. In Windows Explorer, right-click the file or folder you want to work with and
then select Properties.
2. In the Properties dialog box, select the Security tab and then click Advanced.
This opens the “Advanced Security Settings for” dialog box.
3. On the Effective Permissions tab, click Select to display the Select User or Group
dialog box.
4. Type the name of a user or a group account. Click Check Names and then do
one of the following:
If a single match is found for each entry, the dialog box is automatically
updated as appropriate and the entry is underlined.
If multiple matches are found, you’ll see an additional dialog box that allows
you to select the name you want to use, and then click OK.
If no matches are found, you’ve probably entered an incorrect name. Mod-
ify the name in the Name Not Found dialog box and then click Check
Names again.
The complete set of special permissions for the selected user or group is listed as
shown in Figure 11-9.
Figure 11-8. Copying or removing permissions

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