Retrieve Client Computer Name Using C#

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ASP.NET

SQL

Windows

Visual-Studio

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I wrote a simple ASP.NET form that allows users to send me their needs. I have to retrieve their information like IP Address and their local computers' names. The codes that I wrote returns their correct IP Address. I don't have any problems with that. However, when I trying to retrive the computer name, it always returns the computer name that the actual application stays. In this case, my host server, webserver.

How can I retrieve their computer names? Is this possible?

PS: Client computers that send data using my asp form and server that holds the form are in the same network.

Here are the codes that I have been trying:

string name1 = Environment.MachineName; //returns webserver
string name2 = System.Net.Dns.GetHostName(); //returns webserver
string name3 = System.Windows.Forms.SystemInformation.ComputerName; //returns webserver
string name4 = System.Environment.GetEnvironmentVariable("COMPUTERNAME").ToString();//returns webserver