How to get domain name from Given IP in C#?

Question

I want to get domain name from a given IP. E.g If I give IP as \"172.24.17.85\" I should get only domain name like my domain name is sonata.net.

Any code snippet for

Answer 1

Console.WriteLine("DomainName: {0}", Dns.GetHostEntry("1.1.1.1").HostName);

Answer 2

Have you tried Dns.GetHostEntry?

Example:

using System;
using System.Net;

class Test
{
    static void Main(string[] args)
    {
        IPAddress addr = IPAddress.Parse("69.59.196.211");
        IPHostEntry entry = Dns.GetHostEntry(addr);
        Console.WriteLine(entry.HostName); // Prints "stackoverflow.com"
    }
}

Note that this didn't work for the example you gave... if a reverse DNS lookup doesn't work, I'm not sure what you can do.

Answer 3

I really doubt if this is going to be possible. There could be n number of domains pointing to a single IP. You can do some research on Reverse DNS lookup.