Cannot get domain name using C#

Question

I am trying to get domain name using C# with the below code,

static void Main(string[] args)
{
    var domainName = IPGlobalProperties.GetIPGlobalProperties().DomainName;
    Console.WriteLine(domainName);
    Console.ReadLine();
}

It prints domain name correctly in domain connected windows 8 machine. But it doesn't print anything in windows server 2012 R2 machine.

How to get domain name in Windows server 2012 machine.

Check this one: http://stackoverflow.com/questions/4249139/c-sharp-active-directory-get-domain-name-of-user — zchpit, Mar 29 '16 at 09:57
Is the server part of the domain? Does it have multiple interfaces? Which one is used in this check? If you disable other LANs, is it solved then? — Patrick Hofman, Mar 29 '16 at 09:57

score 1 · Answer 1 · answered Mar 29 '16 at 10:53

1

I hope that works for you:

string domainName = System.DirectoryServices.ActiveDirectory.Domain.GetComputerDomain().Name;

answered Mar 29 '16 at 10:53

Orkun Bekar

1,447
1
15
36

Wrap it in try/catch because it can throw. – Meirion Hughes Mar 29 '16 at 10:58
Yes it should be wrapped with try/catch but I didn't write a method I just gave single line of code. – Orkun Bekar Mar 29 '16 at 11:04
Its working. How it works? Why my code doesn't work. Is something wrong in that method. – Kumar Mar 29 '16 at 12:42
Getting the exception: **System.Security.Authentication.AuthenticationException: The user name or password is incorrect** – Kumar Mar 29 '16 at 13:16
I cannot see Windows Server 2012 in supported platforms [here](https://msdn.microsoft.com/en-us/library/system.net.networkinformation.ipglobalproperties.getipglobalproperties(v=vs.100).aspx) – Orkun Bekar Mar 29 '16 at 13:18
Where do you get that exception? In your method? – Orkun Bekar Mar 29 '16 at 13:20
I am getting this exception when trying your code. I am trying to run the code as windows service. But If i use the code normally, i can get the domain name. – Kumar Mar 30 '16 at 03:46
What is the ServiceAccount of Windows service? Is it LocalSystem? – Orkun Bekar Mar 30 '16 at 07:26

score 1 · Accepted Answer · answered May 06 '16 at 20:40

1

In the past, I have used this code to get the domain name. It is accessed through the environmental variables on that machine.

string UserDomain = Environment.UserDomainName.ToString();
Console.WriteLine(UserDomain);

Perhaps the exception is caused from running it on a server for which the user does not have the appropriate permissions. Have you tried doing a "run As administrator" or "run as different user" with the exe?

answered May 06 '16 at 20:40

Mark G

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I have tried with Administrator too. But it is not working. I have tried to getting from environmental variable already. Its working. Is this a correct way to get the domain name? – Kumar May 09 '16 at 04:39
Kumar, A few more things to see if it leads you anywhere: 1) more specifically, have you opened a command prompt and run your exe from that command prompt? 2) I would try running the command "set" to see if returns all the environmental variables and see the values. 3) Check out the command iCacls. That might help figure what permissions that user has on that server. 4) I think the exception is pointing to some kind of permission/user issue. – Mark G May 09 '16 at 14:28
Works only when the current users accout is in same domain like the machine! – marsh-wiggle Dec 17 '20 at 20:53

Cannot get domain name using C#

2 Answers2