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How to Get Window NT Logged User Name Using ASP.NET

, 4 Jan 2006
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Article explains How to get windows user name using ASP.NET


This article shows How to get the Windows current logged user name using ASP.NET

First Step Setting  Up Web Server

To get the windows user name through programatically. Compulsary we need to set the web server.

Open the Internet Infomation Services(IIS), Select your ASP.NET Virtual Directory, right click, go to the Properties, In Properties window go to Directory Security Tab, Here You Find the "Edit" button in Anonymous access and Authentication Control. Press Edit Button. Now Authentication Methods dialogbox will appear.

In this dialog box by default it is set(checked) Anonymous Access. uncheck this checkbox and go to botom of this dialog box check the Integrated windows authentication. Here why we are selecting this Default web server is logged by ISUER_MachineName so if it is window authentication web server will take the credentials from windows logged user.

Getting the User Name :

using three ways we can get the User Name using C#

1) System.Security.Principal.WindowsPrincipal p = System.Threading.Thread.CurrentPrincipal as System.Security.Principal.WindowsPrincipal;

string strName = p.Identity.Name;

[ OR ]

2) string strName = HttpContext.Current.User.Identity.Name.ToString();

[ OR ]

3) string strName = Request.ServerVariables["AUTH_USER"]; //Finding with name

string strName = Request.ServerVariables[5]; //Finding with index

In Above 3 Cases returnin string contains DomainName\WinNTLoggedUserName

(for Ex: Microsoft\Bill.Gates. Here Microsoft is domain Bill.Gates is Logger User Name )

Using string operations seperate the DomainName and UserName.






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About the Author

Technical Lead
Singapore Singapore
C# Developer have Hands on Web Developement using ASP.NET, Web Services, Win Serivces, Pocket PC, Smart Device,Enterprize Security Applications and Win Forms Development using .NET FW 1.1 & 2.0.

Comments and Discussions

GeneralMy vote of 4 PinmemberRajamohan.Rajendran1-Jun-11 19:31 
Generalget windows nt logged user name PinmemberMember 324702231-Dec-10 3:18 
GeneralMy vote of 1 Pinmemberdivyesh143219-Mar-10 23:43 
GeneralRe: My vote of 1 [modified] Pinmembermandelbrot197010-May-12 5:36 
GeneralMy vote of 1 PinmemberRaghavan Ram Raja15-Mar-10 5:07 
QuestionHow about this for ASP .NET PinmemberRTS@Orix28-May-09 7:10 
Generaltanks PinmemberMyLoveSarah16-Mar-09 2:44 
GeneralRe: tanks Pinmemberenvador5-May-09 9:30 
RantThis aticle makes no sense Pinmembersada.narayanappa124-Feb-09 7:39 
QuestionHow to Get Window NT Logged User Name Using ASP.NET Pinmemberhkim_zoro6-Feb-09 15:54 
GeneralMy vote of 1 PinmemberVlad Iliescu27-Jan-09 6:58 
QuestionI Keep getting ASP.NET Machine Account Pinmemberstout2716-Sep-08 9:50 
GeneralVB Solution PinmemberTrissa14-Jun-07 11:11 
Dim p As System.Security.Principal.WindowsPrincipal = System.Threading.Thread.CurrentPrincipal
lblUserName.Text = p.Identity.Name
Hope this simple solution is helpful to someone else?!? Smile | :)
QuestionRe:C# Solution Pinmembertaweel15-Mar-09 3:48 
GeneralAnother quicker way to get the Identity PinmemberRaghu Nadh30-Apr-07 21:41 
GeneralRe: Another quicker way to get the Identity PinmemberArabisoft31-May-07 10:14 
GeneralRe: Another quicker way to get the Identity Pinmemberjoelperez19-Mar-08 8:55 
GeneralRe: Another quicker way to get the Identity Pinmembermycsharpcorner28-Nov-08 19:54 
Generalrequest.servervariables("remote_user") Pinmemberfdsilva3-Mar-06 5:50 
GeneralRe: request.servervariables("remote_user") PinmemberMalayil alex21-Mar-07 2:39 
GeneralRe: request.servervariables("remote_user") Pinmemberinthelight31-May-07 7:05 
GeneralA question about security Pinmemberusawnani10-Feb-06 9:44 
GeneralToString Pinmembersmallguy7827-Jan-06 6:33 

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