C#：从域名中获取 IP 地址？

Question

How can I get an IP address, given a domain name? For example: www.test.com

Answer 1

Dns.GetHostAddresses

Answer 2

您可以使用GetHostAddresses方法：

var address = Dns.GetHostAddresses("www.test.com")[0];

Answer 3

You can get the same results by using:

Dns.GetHostAddresses("yahoo.com");

or

await Dns.GetHostAddressesAsync("yahoo.com");

Answer 4

My answer could be more the same above answers, but here i get the current web app hosted URL / domain name using code and obtained the IP address and from that. I used the code in my C# MVC Web app and its working fine.

Uri myUri = new Uri(((System.Web.HttpContextWrapper)HttpContext).Request.Url.ToString());
var ipAddress = Dns.GetHostAddresses(myUri.Host).FirstOrDefault().ToString();