Java java.net.ConnectException: Connection refused

Question

I'm having an issue when copying my application to the server. The program runs fine on my testing machine (Mac OS X), but when I deploy it on my server (Windows Server 2008), I get the following error:

java.net.ConnectException: Connection refused

I'm sure I've open the ports correctly for outbound connections. Just port 80 right?

Here's a code snippet if it helps

try {
    doc = Jsoup.connect("http://google.com").get();
} catch (IOException e) {
    e.printStackTrace();
    return;
}

Java isn't my main language, so let me know if there's anything more you need.

Are you sure that you are not running behind a proxy? Can you connect through remote desktop to that server and check that you have access to the desired URL (also check the browser configuration to see if there's any proxy in place)? — Claudio
– Claudio, Commented Jan 9, 2013 at 20:53

partlov · Accepted Answer · 2013-01-09 21:56:34Z

2

This problem almost always came up because of one of two reasons:
1) The server is not listening on right port
2) You have firewall which blocks out trafic

Try to stop your firewall temporarily and see what's going on.

answered Jan 9, 2013 at 21:56

partlov

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4 Comments

Viccari Over a year ago

I would add to that: 3)you are behind a web-proxy and your application is not using it to handle connections.

partlov Over a year ago

Yes, I just removed that because Ashley wrote that there is no proxy.

Viccari Over a year ago

Sure, I mean, the item 3) would make the list more applicable for every "Connection refused" problem :)

Ashley Medway Over a year ago

there was a little more to it, but yeah basically it was a firewall thing

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