Converting an IP address to hostname?

Question

How can I convert an IP address to a hostname like something.sip.bct.bell.net or something like that? is there a way to do it with c++? thanks.

Answer 1

What you want is done by something called a reverse DNS name lookup. Look at this website: http://remote.12dt.com/



You can do it in C++ with some amount of programming. You have to write code to communicate to DNS servers and request a reverse lookup query. You can take a look at http://en.wikipedia.org/wiki/Domain_Name_System for more information

Answer 2

Hi

I assume that you will have an ip address and you will want to get the host name from it ,

like you will give 64.233.167.99 and you want the result as

www.google.com



import java.net.*;



public class Main {



public static void main(String[] args) {



try {

String IP = "64.233.167.99";

String hostname =



//use inetaddr.getbyname.gethostname



InetAddress.getByName(IP).getHostName();

System.out.println("hostname = " + hostname);

}

catch(Exception e) {

System.out.prinln("exception ");

}

}

}

Answer 3

you can go to a domain registrar such as http://www.godaddy.com and buy a domain for about $10 a year. Then you have rights to the domain and you can forward it to the IP address.

Answer 4

To do this you need to register the name with a domain registrar. You cn not just choose a name and use it.

Answer 5

localhost



127.0.0.1