Question

NTFS File/Folder permissions

Asked by: jskfan

I have found these tables that explain the NTFS permissions.
I would like to have an expert explaining clearly the permissions effect described on these table.


http://www.windowsitlibrary.com/Content/592/files/Table5.gif
http://www.windowsitlibrary.com/Content/592/files/Table6.gif

thanks

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Asked On
2005-10-06 at 08:24:25ID21586050
Tags

ntfs

,

file

,

folder

,

permission

Topic

Windows Network Security

Participating Experts
2
Points
500
Comments
6

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Answers

 

by: craylordPosted on 2005-10-06 at 08:34:22ID: 15031464

Both tables list the permissions for each level. If you take a user and assign the permissions of just "Read", they will only be able to perform the functions that are dotted. If you change their level to Full Control, they will have the ability to perform the dotted functions, which will include the previous Read permissions because you have raised their access level.

Remember deny will ALWAYS override any allow permissions.

 

by: SunBowPosted on 2005-10-06 at 08:45:21ID: 15031584

Permission                                 Description

Traverse Folder/Execute File        This allows or denies a user to browse through a folder's subfolders and files where he would otherwise not have access. In addition, it allows or denies the user the ability to run programs within that folder.

List Folder/Read Data          This allows or denies the user to view subfolders and fill names in the parent folder. In addition, it allows or denies the user to view the data within the files in the parent folder or subfolders of that parent.

Read Attributes         This allows or denies a user to view the standard NTFS attributes of a file or folder.

Read Extended Attributes      This allows or denies the user to view the extended attributes of a file or folder, which can vary due to the fact that they are defined by the programs themselves.

Create Files/Write Data      This allows or denies the user the right to create new files in the parent folder. In addition, it allows or denies the user to modify or overwrite existing data in a file.

Create Folders/Append Data      This allows or denies the user to create new folders in the parent folder. In addition, it allows or denies the user the right to add data to the end of files. This does not include making changes to any existing data within a file.

Write Attributes        This allows or denies the ability to change the attributes of a files or folder, such as Read-Only and Hidden.

Write Extended Attributes      This allows or denies a user the ability to change the extended attributes of a file or folder. These attributes are defined by programs and may vary.

Delete Subfolders and Files          This allows or denies the deleting of files and subfolder within the parent folder. It also true that if this permission is assigned files and subfolders can be deleted even if the Delete special access permission has not been granted.

Delete                      This allows or denies the deleting of files and folders. If the user does not have this permission assigned but does have the Delete Subfolders and Files permission, she can still delete.

Read Permissions        This allows or denies the user the ability to read the standard NTFS permissions of a file or folder.

Change Permissions      This allows or denies the user the ability to change the standard NTFS permissions of a files or folder.

Take Ownership      This allows or denies a user the ability to take ownership of a file or folder. The owner of a file or folder can change the permissions on the files and folders she owns, regardless of any other permission that might be in place.

Synchronize      This allows or denies different threads to wait on the handle for the file or folder and synchronize with another thread that may signal it. This permission applies to only multithreaded, multiprocessing programs.

 

by: SunBowPosted on 2005-10-06 at 08:47:41ID: 15031611

> have an expert explaining clearly the permissions effect

That can really be an extensive effort.

So what is it you really need to know. The prior comment is from table 4, same website.

 

by: SunBowPosted on 2005-10-06 at 08:54:22ID: 15031672

table 6 is essentially telling you that permissions can be set to not overlap. For example, you can give someone 'read' access to read your documents, but they will not be able to write to them to change anything. Similarly, you can let them execute your programs, while denying them the right to change them. System Administrators often get full control, to analyze the system, install products, and maintain upgrades.

 

by: jskfanPosted on 2005-10-06 at 09:27:39ID: 15031989

For example:

1- Delete Subfolders and Files  does the same thing as Delete : why both are there instead of only one?
2- Change permissions: if user has only this permission. can he delete the folder ,can he assign himself other permissions like write,delete,full controll, etc...?
3-take ownership: if you give a user this permission, is he going to have full control of the file or folder, is he going to be able to delete that folder and create files/subfolder ?
4-Modify: if you give Modify to a user is he going to be able to delete/create files and folders and assign permissions on them?


SunBow has given an explanation above, I appreciate that ,but it's not really thorough explanation, because each permission has a scope.

 

by: SunBowPosted on 2005-10-07 at 14:25:38ID: 15042357

Thanks, I think.

Sometimes it can work better if the specific questions are asked earlier on in the Q/A process.

20120131-EE-VQP-002

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