A host which part of Active directory domain does authentication from the logon server (domain controller).

LOGONSERVER env var has its value.


Is there any API using which I can retrieve this value?

  • This could swing either way, on Stackoverflow or here. I would propose that we keep it here because of the usefulness in scripting sysadmin tasks. – squillman Aug 26 '10 at 16:39

Nearly every language or framework will have a method that will let you retrive the values of environment variables. .NET, Powershell, Java... What are you coding in?

System.Environment.GetEnvironmentVariable ()

$env:<name of env variable>, so for example $env:logonserver

WMI (using VBS):
Set colItems = objWMIService.ExecQuery(”Select * from Win32_Environment”)


  • Well played, sir – gWaldo Aug 26 '10 at 18:28

Assuming you want to retrieve that from the client, you could query "HKCU:\Volatile Environment\LOGONSERVER" or env:LOGONSERVER.

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