java Exception in thread "main" java.net.UnknownHostException: Test: Test: unknown error OS ubuntu

Question

This error is related to my previous question where I had an error with InetAddress.getLocalHost(). I found a suggestion to add an entry in /etc/hosts:

myip     localhost
127.0.0.1   localhost
127.0.1.1   test5

but my error is still not resolved.

My code :

import java.net.*;

public class InetAddressTest {
    public static void main(String args[]) throws UnknownHostException {
        InetAddress Address = InetAddress.getLocalHost();

    }
}

Error :

Exception in thread "main" java.net.UnknownHostException: Sachin: Sachin: unknown error
    at java.net.InetAddress.getLocalHost(InetAddress.java:1484)
    at InetAddressTest.main(InetAddressTest.java:6)
Caused by: java.net.UnknownHostException: Sachin: unknown error
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
    at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:907)
    at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1302)
    at java.net.InetAddress.getLocalHost(InetAddress.java:1479)
    ... 1 more

hutingung · Accepted Answer · 2014-07-07 14:00:56Z

24

Your host name is Sachin. The exception in thread "main" java.net.UnknownHostException: Sachin: Sachin: unknown error show that.

Add Sachin to /etc/hosts

myip     localhost
127.0.0.1   localhost
127.0.1.1   test5
127.0.0.1   Sachin

answered Jul 7, 2014 at 14:00

hutingung

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Comments

Dynamic Remo · Accepted Answer · 2017-03-21 15:50:38Z

0

There's a chance that you might be contacting to an external ip address in your application and you are not connected to the internet. So, Check your Internet Connection before making some change to host/dns or any other...

There's also a possibility that you require a VPN Connection to be in the some particular network to access those external url/ip. So, check that too.

Cheers ;-)

answered Mar 21, 2017 at 15:50

Dynamic Remo

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