remote Tomcat server : java.net.ConnectException: Connection refused

Question

I have been trying to find an answer to my question but couldnt.

Now, my java web application runs perfectly on my local Tomcat server (6). It connects to a remote mysql database on db4free.net.

When uploading my web application on eatj.com (running Tomcat server 6 too) , it gives this exception: java.net.ConnectException: Connection refused.

Note that it runs fine when commenting the part connecting to the mysql database.

I want to know what could differ between my Tomcat server and the remote Tomcat server that would lead to this error?

Thanks in advance.

ADDITIONAL UPDATE:

Root Cause:
Caused by: java.security.AccessControlException: 
access denied (java.net.SocketPermission db4free.net resolve)

Stephen C · Accepted Answer · 2011-10-29 05:07:02Z

2

I want to know what could differ between my Tomcat server and the remote Tomcat server that would lead to this error?

It is unlikely to be a difference in the Tomcat servers themselves. If there was an issue with Tomcat, it would manifest as a different exception.

The more likely cause is some kind of firewall issue; e.g. the firewall at eatj.com blocking outbound connections on the MySQL JDBC port.

answered Oct 29, 2011 at 5:07

Stephen C

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4 Comments

Doaa A. Over a year ago

Thanks for the reply. The thing is, I used to access this exact database with an older version of my application on eatj. Any hint??

Stephen C Over a year ago

Hints: 1) check that you haven't accidentally changed the JDBC URL / port. 2) ask if the hosting companies have changed their firewalls wrt the MySQL ports.

Doaa A. Over a year ago

Thanks! Will try to contact them again.

Doaa A. Over a year ago

I have added some additional info. What does that exception mean?

Doaa A. · Accepted Answer · 2011-10-29 23:25:43Z

1

SOLVED!

I have contacted them. They said since the root cause is " java.security.AccessControlException" then I have to upgrade to a paid account.

answered Oct 29, 2011 at 23:25

Doaa A.

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