unknown host Exception while connect url

[fairoz khan]

I facing unknown host Exception while compile below code, its working in my local machine, if i moved to server(windows server) i unable to run, i setup the proxy even though its not working can any one help to me.

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Properties;

public class Address {

	public static void main(String[] args) {
		 Properties systemSettings =  System.getProperties();
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		 systemSettings.put("proxySet", "true");
         systemSettings.put("http.proxyHost","100.58.378.200");
         systemSettings.put("http.proxyPort", "8080");
		String site="www.google.com";
		try{
			InetAddress ip=InetAddress.getByName(site);
					//InetAddress.getAllByName(site);
			System.out.println("ipaddress="+ip);
		}catch(UnknownHostException ue){
			System.out.println("website not found");
		}
	}
}

Thanks in advance
Fairoz p

[Ulf Dittmer]

#1) Does the code work on the server if it connects directly, without proxy?

#2) Is the proxy server reachable from the Windows server?

[Campbell Ritchie]

… and welcome to the Ranch

I think that question is too difficult for “beginning”, so I shall try moving it.

[Paul Clapham]

I find it quite surprising that the proxy host isn't in your machine's local network -- and in fact isn't a valid IP address at all. Perhaps that is part of your problem?

[Gopinath anumalasetty]

I believe this following link will helps you.

http://examples.javacodegeeks.com/core-java/net/inetaddress/how-to-get-ip-address-in-java-using-inetaddress/

Small question, but it seems to be funny:

Is that system having internet connection?

[fairoz khan]

Gopinath anumalasetty wrote:I believe this following link will helps you.

http://examples.javacodegeeks.com/core-java/net/inetaddress/how-to-get-ip-address-in-java-using-inetaddress/

Small question, but it seems to be funny:

Is that system having internet connection?

yes that system has the internet connection. i can able to open any url from IE, but not from java programm any idea?

[fairoz khan]

Ulf Dittmer wrote:#1) Does the code work on the server if it connects directly, without proxy?

#2) Is the proxy server reachable from the Windows server?

1)no
2)no

[Ulf Dittmer]

Well, if the proxy server is not reachable from the Windows server then you need to investigate why that is.

[Paul Clapham]

And by the way: remove this line of code from your program.

systemSettings.put("proxySet", "true");

There is no such system property, so posting code which pretends that there is just leads to more people writing useless and misleading lines of code.

[fairoz khan]

i have fixed the problem in window server, the proxy network team has blocked the firewall or proxy. so i able compile and run in that machine