How to Get a Computer's Name and FQDN in .NET?

Retrieving the Computer Name in .NET

Obtaining the computer name is a common operation in .NET applications. Depending on the application type, you can use different techniques to retrieve this information.

Console or WinForms Applications:

For console applications or Windows Forms applications, you can use the System.Environment.MachineName property, which returns the NETBIOS computer name. The code below demonstrates its usage:

string computerName = System.Environment.MachineName;

Web Applications:

In ASP.NET web applications, you can access the computer name through the HttpContext.Current.Server.MachineName property. This property retrieves the server name from the request context.

string computerName = HttpContext.Current.Server.MachineName;

Fully Qualified Domain Name (FQDN):

If you need to obtain the fully qualified domain name (FQDN) of the computer, you can use the System.Net.Dns.GetHostName() method.

string fqdn = System.Net.Dns.GetHostName();

Additional Considerations:

• If System.Net.Dns.GetHostName() does not provide the FQDN, you can refer to the article "How to find FQDN of local machine in C#/.NET?" for alternative approaches.
• For detailed information on the differences between SystemInformation.ComputerName, Environment.MachineName, and Net.Dns.GetHostName, please see the provided link.

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