By luckysujit
I have installed my app in /home/XXXXX/
/home/
|— prizm-dist/
| |— conf/
| |— jre/
| | |— [jre files]
| |— prizm_db/
| |— html/
| |— logs/
| |— run.sh
| |— run_test.sh
| |— prizmEngine.jar
Above is complete file structure
I am trying to access my app in browser but getting error
refused to connect. Try: Checking the connection Checking the proxy and the firewall ERR_CONNECTION_REFUSED
My app is trying to use Port : 9976
I have enabled UFW 9974:9976
I have also installed Java Package in my Droplet, but still I am not able to access my app. Please help
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Heya,
Based on the information provided, there could be multiple reasons why your Java application is not accessible. Here are a few troubleshooting steps:
- Check if the Application is Running: Ensure that your application is running. You can do this by using the following command:
ps -ef | grep prizmEngine.jar
If your application is running, you should see it listed in the results.
- Check Port Listening: Ensure that your application is actually listening on port 9976. You can check the ports that are currently in use with the command:
sudo netstat -tuln | grep 9976
If your application is listening on the correct port, you should see it listed in the results.
- Check Firewall Rules: Ensure that your firewall rules are allowing connections on port 9976. It’s good that you’ve mentioned you enabled the port in UFW, but do verify it with:
sudo ufw status
The ports 9974 to 9976 should be listed as allowed in the output.
-
Ensure No Other Service is Using the Same Port: Ensure that no other service is using port 9976. If another service is using this port, your application will not be able to bind to it.
-
Check Application Logs: Check the logs for your application to see if there are any error messages. The logs directory is generally a good place to start.
-
Check Java Version: Ensure that you have the correct version of Java installed. You can check this by running
java -versionfrom the command line. The version of Java you have installed should be compatible with your application. -
Check Your Network Settings: If your droplet is set to listen only on localhost (127.0.0.1), you will not be able to access the application from the outside world. Make sure your application is set up to listen on 0.0.0.0 (all interfaces) or a public-facing IP address.
Remember, the best way to diagnose these problems is by looking at your application logs, which can provide detailed error messages. If you still cannot find the problem, please provide additional information or error logs, if any.
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