New users and groups are added to a Permissions list with this rather
confusing dialog
Permissions and Security | 469
Users and
Security
When you??™ve added a new user to the Permissions window (shown previously
in Figure 8-4), highlight the user, and selectively click the checkmarks
in the Allow or Deny columns.
Deny entries take precedence over any Allow entries. Say a
user named Surly is part of a group named Duff. If you deny
read access to the Duff group, and then allow read access to
the Surly account, Surly still won??™t be able to read the files.
Depending on the type of object you??™ve selected, you may see any number of
different types of entries here, such as Full Control, Read, Write and Modify.
After playing with the checkmarks, you??™ll notice that there is quite a bit
of redundancy in this list; for example, Modify is an umbrella term that
includes Read & Execute, Read, and Write.
For more control over permissions, click Advanced to show the Advanced
Security Settings window (shown earlier in Figure 8-5), select the user with
whom you want to work, and click Edit. The Permission Entry window
shown in Figure 8-7 allows you to fine-tune permissions and allow only
those permissions that are absolutely necessary for the object. When settings
most permissions day-to-day, you won??™t ever need to use this tool.
When you??™re done choosing permissions, click OK. If you??™re modifying the
permissions for a folder, Windows may or may not prompt you to have your
changes propagated to all subfolders and files.
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