Resolving ip-address of a hostname

Question

I have the DNS server IP address and a hostname.

Using Java, how can I find the IP address of the hostname as returned by that DNS server using the IP address and th

Answer 1

Take a look at InetAddress and the getHostAddress() method.

InetAddress address = InetAddress.getByName("www.example.com"); 
System.out.println(address.getHostAddress()); 

Answer 2

You can use InetAddress for this. Try the below code,

InetAddress address = InetAddress.getByName("www.yahoo.com");
System.out.println(address.getHostAddress());
System.out.println(address.getHostName());

Answer 3

You can do it like this:

for(InetAddress addr : InetAddress.getAllByName("stackoverflow.com"))
    System.out.println(addr.getHostAddress());

Answer 4

As suggested by all above, you can use InetAddress.getByName("hostName") but this can give you a cached IP, Read the java documentation for the same. If you want to get a IP from DNS you can use:

InetAddress[] ipAddress = DNSNameService.lookupAllHostAddr("hostName");