Directoryentry Nativeobject Unspecified Error
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Unknown Error (0x80005000) Ldap
using C# RSS 1 reply Last post Feb 12, 2015 12:43 PM by smirnov ‹ Previous Thread|Next Thread
System.directoryservices.directoryentry.bind(boolean Throwiffail)
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Unknown Error (0x80005000) Iis
a non-secure LDAP Directory from an ASP.NET website using C# Jan 28, 2015 07:22 PM|GarryShuck|LINK I have been gven my 1st LDAP programming assignment, and asked to retrieve several data fields from a web-based campus LDAP directory when a user hits a web page on a campus website that I program for. The directory is public information, and unknown error (0x80005000) ldaps I do not have or need login credentials to it. I have the LDAP url, the base DN, and can build the formal DN for the webuser based on the username they log into my site with. More simply, a user logs into my site, and then I retrieve some data from the remote LDAP site and display it on the page. My site is ASP.NET, written in C#. Here is a code snippet: // UCI LDP Directory guide: http://www.oit.uci.edu/idm/ldap/ // build DN string String uid = "uid=" + ucinetid + ",ou=University of California Irvine,o=University of California, c=US"; string path = "ldap.service.uci.edu"; // define LDAP connection DirectoryEntry de = new DirectoryEntry("ldap.service.uci.edu"); DirectorySearcher search = new DirectorySearcher(de); try { if (de != null) { if (de.Properties["uciperson"] != null && de.Properties["uciperson"].Count > 0) { string department = de.Properties["uciperson"].Value.ToString(); Label1.Text = department; } } else { Label1.Text = "directory was null"; } //object connected = de.NativeObject; //search.PropertiesToLoad.Add("department"); //SearchResult result = search.FindOne(); //Label2.Text += result.Properties["department"].ToString(); errMsg.Text = "
connection successful.
"; } catch (Exception ex
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(עברית)المملكة العربية السعودية (العربية)ไทย (ไทย)대한민국 (한국어)中华人民共和国 (中文)台灣 (中文)日本 (日本語) HomeWindows 10Windows 10 MobilePrevious versionsMDOPSurfaceSurface HubLibraryForums Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Asked by: Why COM exceptions thrown by DirectoryEntry object methods are inconsistent ? Windows https://social.technet.microsoft.com/Forums/windows/en-US/7082bc9e-fc6a-4f08-9e6f-3d3ca75505d3/why-com-exceptions-thrown-by-directoryentry-object-methods-are-inconsistent-?forum=winserverDS Server > Directory Services Question 0 Sign in to vote I am trying to http://stackoverflow.duapp.com/q/8957886?rq=1 create 1 DirectoryEntry object with credential. After creating creating DirectoryEntry object i am trying to check its property count. Here is code DirectoryEntry entry = null; try { entry = new DirectoryEntry("WinNT://serverName,computer", userName,password,AuthenticationTypes.Secure); if (entry.Properties.Count > 0) { // succesfull } } catch (Exception e) { throw new Exception(e.Message); } finally { if unknown error (entry != null) { entry.Close(); entry.Dispose(); entry = null; } GC.Collect(); } Now suppose if server to which i am trying to connect is down, then i must get exception. Problem is sometime i gets error as "network path not found" and sometime as "Unspecified error (0x80004005)". what can be reason for thisinconsistency? How it can be solved. This code is used in windows service and unknown error (0x80005000) it is running under local system account,but i also tried running service admin account with no luck. I am not using any kind of impersonation before using this code. Actually Exception:"Unspecified error (0x80004005)" occursin many cases for example, if i provide wrong credential while creating DirectoryEntry object sometime i gets proper error butsometimethis unwanted"Unspecified error (0x80004005)" . Thanks in advance ! Edited by sagar_bh Thursday, February 21, 2013 11:39 AM Thursday, February 21, 2013 11:03 AM Reply | Quote All replies 0 Sign in to vote Why are you using the WinNT provider instead of the LDAP provider that is designed to workwith Active Directory?Enfo Zipper Christoffer Andersson – Principal Advisor http://blogs.chrisse.se - Directory Services Blog Thursday, February 21, 2013 11:50 AM Reply | Quote 0 Sign in to vote @Christoffer Andersson: No i want to manage local user on windows machine, not Activedirectory. For managing local user WinNT ADSI provider is used, here we cant use LDAP provider. Edited by sagar_bh Thursday, February 21, 2013 11:57 AM Thursday, February 21, 2013 11:56 AM Reply | Quote 0 Sign in to vote Hi, Regarding programming issues, we suggest you ask MSDN forum to get a better assist: http://social.msdn.micr
below code outputs:Before impersonation I am: DOMAIN\userAfter impersonation I am: DOMAIN\adminError: C:\Users\user\ADSI_Impersonation\bin\Debug\ADSI_Impersonation.exe samaccountname:My issue seems similar to:How to use the System.DirectoryServices namespace in ASP.NETI am obtaining a primary token. I understand that I need to use delegation to use the impersonated token on a remote computer. I confirmed that the account doesn't have the flag checked "Account is sensitive and cannot be delegated". I also confirmed that the Local Group Policy and Domain Group Policies are not preventing delegation: Computer Configuration\Windows Settings\Security Settings\Local Policies\User Rights Assignment\What am I missing?Thanks!using System; using System.DirectoryServices; using System.Security; using System.Security.Principal; using System.Runtime.InteropServices; using Microsoft.Win32.SafeHandles; using System.Runtime.ConstrainedExecution; namespace ADSI_Impersonation { class Program { [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)] public static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, out SafeTokenHandle phToken); [DllImport("kernel32.dll", CharSet = CharSet.Auto)] public static extern bool CloseHandle(IntPtr handle); static void Main(string[] args) { const int LOGON32_PROVIDER_DEFAULT = 0; const int LOGON32_LOGON_INTERACTIVE = 2; string userName = "admin@domain.com"; string password = "password"; Console.WriteLine("Before impersonation I am: " + WindowsIdentity.GetCurrent().Name); SafeTokenHandle safeTokenHandle; try { bool returnValue = LogonUser(userName, null, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, out safeTokenHandle); if (returnValue) { WindowsIdentity newId = new WindowsIdentity(safeTokenHandle.DangerousGetHandle()); WindowsImpersonationContext impersonatedUser = newId.Impersonate(); } else { Console.Wr