Resolve HostName to IP

Question

I have been through a lot of googling for this, I found a lot of examples none of which was working for me. This is a simple issue which I feel has a simple answer without defining new classes\modules etc...

My code is this :

Console.WriteLine ("Please enter an IP address or hostname"); string host = Console.ReadLine (); ***IP = resolved "host"***  Socket s = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);     s.Connect (IP, 80); s.close(); 

How do I actually resolve the IP variable?

Answer 1

You can simply use the DNS class to do so:

IPHostEntry hostEntry;  hostEntry= Dns.GetHostEntry(host);  //you might get more than one ip for a hostname since  //DNS supports more than one record  if (hostEntry.AddressList.Length > 0) {       var ip = hostEntry.AddressList[0];       Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);       s.Connect(ip, 80); } 

Answer 2

string howtogeek = "www.howtogeek.com"; IPAddress[] addresslist = Dns.GetHostAddresses(howtogeek);  foreach (IPAddress theaddress in addresslist) {    Console.WriteLine(theaddress.ToString());  } 

from howtogeek