Get Machine name from IP Address c#

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Description

This article contains the C# code snippets to get Hostname or Machine name from IP Address and get IP Address from Machine name/Hostname.

Summary

  1. Get Machine name from IP Address in C#
  2. Get Machine name from IPAddress in Command Prompt
  3. Get IPAddress from Machine name in C#

Get Machine name from IP Address in C#

You can use this C# function to convert IP Address into Hostname in C#

private static string GetMachineNameFromIPAddress(string ipAdress)
        {
            string machineName = string.Empty;
            try
            {
                IPHostEntry hostEntry=Dns.GetHostEntry(ipAdress);

                machineName=hostEntry.HostName;
            }
            catch (Exception ex)
            {
                // Machine not found...
            }
            return machineName;
        }

Get Hostname from IP Address using cmd ping Command

You can get Machine name or Hostname from IP Address using the following command

ping -a 192.168.56.101

Get IPAddress from Machine name(Hostname) in C#

You can use this C# function to convert Hostname into IP Address in C#

private static string GetIPAddressFromMachineName(string machineName)
        {
            string ipAdress = string.Empty;
            try
            {
                IPAddress[] ipAddresses = Dns.GetHostAddresses(machineName);

                IPAddress ip = ipAddresses[1];

                ipAdress = ip.ToString();
            }
            catch (Exception ex)
            {
                // Machine not found...
            }
            return ipAdress;
        }
Thanks,
Morgan
Software Developer

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