Hi Awadhendra Tiwari,

My problem has been solved, thank you for your help.

Hi...
You can use following line of code to get machine name.

Console.WriteLine(Environment.MachineName);

Thanks.

Hi Awadhendra Tiwari,

How get the local computer name.

Thanks.

Hi Awadhendra Tiwari,

 thanks for your helping.

using System.Net;
namespace GetClientIPAddress
{
    class Program
    {
        static void Main(string[] args)
        {
            //GetHostByName(this parameter  is what).
        IPAddress[] addresses = Dns.GetHostByName("").AddressList; //If only want IP. How to do that?
       Console.Write("Your IP Address is:");
            foreach (IPAddress address in addresses)
            {
                Console.WriteLine(address.ToString());
            }
            Console.ReadKey(true);
        }
    }
}

Hi Aken,

If you want to know client ip address in asp.net then you can use following code
Request.UserHostAddress()   ---> It will give you client address

And if you want it in c# then you can write following code
   
IPAddress[] addresses = Dns.GetHostByName( "MACHINE1" ).AddressList;

foreach( IPAddress address in addresses )
{
    Console.WriteLine( address.ToString() );
}

Thanks.

for security,
Consider the user's account unusual, such as remote login

Why you want to get client IP address?