resolve IP address(int) to name

Question

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

How can i convert ip address in int format to string format. for example, i have this ip address in int format, 173.194.38.138 and i want to convert to string www.rugadingku.blogspot.com. I saw a lots of example on how to convert ip string to int, but not int to string.

well, you need to build up a [lookup table](http://en.wikipedia.org/wiki/Lookup_table) — BrOSs, Dec 10 '12 at 04:50
You know that one IP can be shared among many, many hosts, right? — Joel Coehoorn, Dec 10 '12 at 04:54
http://stackoverflow.com/questions/3252845/how-to-get-domain-name-from-given-ip-in-c — Habib, Dec 10 '12 at 04:55
Note: No solution listed here is guaranteed to work. Doing this relies on reverse-DNS, which a particular IP address may or may not have setup. Also, you may get an unexpected hostname because an IP can be tied to multiple DNS names/domains — Earlz, Dec 10 '12 at 05:06

Sirwan Afifi · Answer 1 · 2012-12-10T05:10:52.943

5

you can use this code to convert IP Address to HostName :

IPHostEntry IpToDomainName = Dns.GetHostEntry("173.194.38.138");
string hostname =IpToDomainName.HostName;

Dns.GetHostByAddress

also you can use this way :

 System.Net.IPHostEntry ip = System.Net.Dns.GetHostByAddress("173.194.38.138");
 string hostname = ip.HostName;

edited Dec 10 '12 at 05:10

answered Dec 10 '12 at 05:03

Sirwan Afifi

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score 0 · Answer 2 · answered Dec 10 '12 at 05:02

Try this:not tested

visit http://www.dijksterhuis.org/converting-an-ip-address-to-a-hostname-and-back-with-c/

// Map an IP address to a hostname

IPHostEntry IpToDomainName = Dns.GetHostEntry("209.85.173.99");
Console.WriteLine("DomainName: {0}", IpToDomainName.HostName);

Also try this:

public static string getDNSName(string myIP)
{
 System.Net.IPHostEntry ip = System.Net.Dns.GetHostByAddress(myIP);
 return ip.HostName;
}

resolve IP address(int) to name

2 Answers2