Whois Search using C # (feels good.) Previously, C + + and VB have done. Now for a C # look

Introductionquite often you want to know who owns a given domain. To obtain the "registry information", you go to the respective registry and start a so called WHOIS query (lookup). The trick is this have to know which Registry is responsible for which TLD (top level Domain).
The database is the so called WHOIS database and it has one distinct property:it provides us with a query interface via T CP Port 43! And as the. NET Framework provides us with the TcpClient class, we can use this interface to directly obtain our data the Following example is a minimal implementation of a WHOIS lookup (whois.aspx): <% @Page language= "C #"%><% @Assemb Ly name= "System.Net"%><% @Import namespace= "System.Net.Sockets"%><% @Import namespace= "System.Text"% ><% @Import namespace= "System.IO"%><%tcpclient TCPC = new TcpClient (); if (0 = tcpc. Connect ("whois.networksolutions.com",) {     string strdomain = "microsoft.com";     byte[] Arrdomain = Encoding.ASCII.GetBytes (Strdomain.tochararray ());     Stream s = tcpc. GetStream ();     s.write (Arrdomain, 0, strdomain.length);     streamreader sr = new StreamReader (TCPC. GetStream (), encoding.ascii);    while ( -1!= Sr. Peek ())     {        response.write (Sr. ReadLine ());     }    tcpc. Close ();} Else{    response.write ("Could not connect to WHOIS server!"); %>