How to Set Security Attributes to a Folder

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I want to set Rights to Read only for all users except Administration. Following is my code but this throw an error as "Some or all identity references could not be translated." on 5th Line. Do i missing something ..Please help me

string dest = @"D:\Directory Test";
DirectoryInfo mydirInfo = new DirectoryInfo(dest);
DirectorySecurity mydirSec = mydirInfo.GetAccessControl();
string User = System.Environment.UserDomainName;
mydirSec.AddAccessRule(new FileSystemAccessRule(
                                    User, 
                                    FileSystemRights.Read, 
                                    InheritanceFlags.ObjectInherit, 
                                    PropagationFlags.InheritOnly, 
                                    AccessControlType.Allow));
mydirInfo.SetAccessControl(mydirSec);

Posted 4-Sep-14 21:02pm

Ghalib Mirza

Updated 6-Sep-14 22:54pm

George Jonsson

v2

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[no name] 5-Sep-14 6:04am

how is it possible "only for all users except Administration." ?

2 solutions

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George Jonsson · Answer 1 · 2014-09-06T23:03:00

Solution 1

Try to change the identity string to

C#

string User = System.Environment.UserName;

or

C#

string User = String.Format(@"{0}\{1}", System.Environment.UserDomainName, System.Environment.UserName);

Posted 6-Sep-14 23:03pm

George Jonsson

Updated 6-Sep-14 23:05pm

v2

OriginalGriff · Answer 2 · 2014-09-06T23:17:00

You may need to tweak exactly what you are doing with the permissions in order to remove existing permissions first, but the main problem is that your User information is rubbish - that's basically the PC name, rather than a user identifier.
Try this instead:

C#

string dest = @"D:\Directory Test";
DirectoryInfo mydirInfo = new DirectoryInfo(dest);
DirectorySecurity mydirSec = mydirInfo.GetAccessControl();
//string User = System.Environment.UserDomainName;
SecurityIdentifier User = new SecurityIdentifier(WellKnownSidType.WorldSid, null);
mydirSec.AddAccessRule(new FileSystemAccessRule(
                                    User,
                                    FileSystemRights.Read,
                                    InheritanceFlags.ObjectInherit,
                                    PropagationFlags.InheritOnly,
                                    AccessControlType.Allow));
mydirInfo.SetAccessControl(mydirSec);