412 CHAPTER 15 MANAGING FILES AND DIRECTORIES
5. Type Takeown /A /F ???C:\Program Files??? and press Enter (make sure you include the
double quotes or the command won??™t work).
6. Type ICACLs ???C:\Program Files??? /Grant:r Administrators:F /T /C and press Enter.
At this point, you should have the access required to perform administrative tasks (with the
caveat that your system is also more exposed to possible outside attack).
7. Log off the system and log back in. This act replaces your personal ACL with the new one
you created for the Administrators group.
Detecting Shared Open Files with the OpenFiles Command
The OpenFiles command helps you track open shared files on any system of a network. This utility
has a number of purposes, but the most important is to ensure that a system has no shared files
open before shutting it down. Even though Windows performs an orderly shutdown on the server,
the client may have data stored in a local cache that could get lost when the server shuts down. You
could also use this utility to look for signs of unwanted intrusion (either locally or from a remote
source). A shared file that you can??™t account for could indicate the activities of a cracker or a disgruntled
employee.
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