Security Permissions Are Not Maintained When Making Files Available Offline on a FAT or FAT32 Drive (271830)
The information in this article applies to:
- Microsoft Windows 2000 Server SP1
- Microsoft Windows 2000 Advanced Server SP1
- Microsoft Windows 2000 Professional SP1
This article was previously published under Q271830 SUMMARY
When you use Windows 2000, you can define access controls for a file on a network share, which make the file available for use on a client computer when the client is not connected to the local area network where the file is maintained.
If your network server has a drive that uses the NTFS file system, you can define special Access Control List (ACL) settings for a file on that drive. A copy of the file that is cached on a client computer retains these ACL settings only if the system drive of the client computer also uses NTFS.
If the system drive of the client computer is formatted using the FAT or FAT32 file system, the ACL settings are not maintained for the locally-cached copy of the file. This means that other users of the computer may be able to access the file. However, these users will not be able to synchronize changes to the network share version of the file if they do not have the appropriate access credentials.
MORE INFORMATION
Because the FAT and FAT32 file systems lack the necessary structure to store file ACL settings, and the Offline Files feature is a per-computer setting, all users of a Windows 2000 client may be able to access the locally-cached copies of offline files.
To maintain a high level of network security, it is advised that you format the drives of your client computers that are running Windows 2000 Professional with the NTFS file system.
| Modification Type: | Minor | Last Reviewed: | 1/26/2006 |
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| Keywords: | kbenv kbinfo KB271830 |
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