Asp.net Core Web API - Current user & Windows Authentication - iis

Question

We have following technical stack in our application
AngularJS2
Asp.Net Core API
SQL Server
Now we need to store User Name for the Logged in User in table during Create/Edit for given item i.e. in Core API.
We have tried with
WindowsIdentity.GetCurrent().Name, it gives IIS APPPOOL\Asp.netCore
HttpContext.User.Identity gives null value
I get User Name with WindowsIdentity while working with Visual Studio, but with IIS, it gives value as Asp.Netcore i.e. pool name
Windows Authentication is enabled and Anonymous Authentication is disabled
Using IIS Version 6.1
Am I missing anything?

Answer 1

Do you have the forwardWindowsAuthToken set to true in the web.config?
<aspNetCore processPath="%LAUNCHER_PATH%" arguments="%LAUNCHER_ARGS%" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" forwardWindowsAuthToken="true"/>

Answer 2

I looked around and it was suggested to create Asp.Net Core WebApi application using Windows Authentication.
So when i created Asp.Net Core WebApi using Windows Authentication it worked and i got values in User.Identity objects.
So i created 2 applications i.e. one with Windows Authentication and one without, and then compared all files and found changes in following files
forwardWindowsAuthToken - true, this was tried before but issue was not solved and same was suggested by Daboul
launchSettings.json, Set windowsAuthentication: true & anonymousAuthentication: false
After doing this, I was able to values in User.Identity object.
The launchSettings.json file:
{
"iisSettings": {
"windowsAuthentication": true,
"anonymousAuthentication": false
}
}
The Web.Config:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.webServer>
<handlers>
<add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified" />
</handlers>
<aspNetCore forwardWindowsAuthToken="true" processPath="C:\Program Files\dotnet\dotnet.exe" arguments=".\YourWebsite.dll" stdoutLogEnabled="true" stdoutLogFile=".\logs\stdout" />
<security>
<authentication>
<windowsAuthentication enabled="true" />
<anonymousAuthentication enabled="false" />
</authentication>
</security>
</system.webServer>
</configuration>

Answer 3

On Windows Server 2012 R2/IIS 8.0, even after setting forwardWindowsAuthToken=true in web.config, User.Identity.Name was not returning the user name but IIS APPPOOL so to resolve the issue I made below change;
Go to the web application in IIS
Open Configuration Editor
Change Section to system.webServer/serverRuntime
Change authenticatedUserOverride to UseAuthenticatedUser (for me it was set to UseWorkerProcessUser)
For further details refer to below link;
https://blogs.iis.net/jaroslad/what-does-the-authenticateduseroverrideuser-do