Clever Geek Handbook

How do I host a Java application in aws?

I know its a pretty stupid question, but I can't seem to do it.

I have a simple chat service. 2 java programs. One is client.java and the other is server.java. It is designed using sockets. Now I have tested it. It works fine on localhost.

I created an EC2 instance for Windows Server 2012 on AWS and ran the server.java command via the command line in the server window. But when I try to connect to it from my machine via client.java, I cannot connect to it.

What could be the reason?

+3


source to share


1 answer


AWS Instances are usually not available externally. They are protected by an internal firewall and have private IP addresses. There is a "public" interface, but this will not open any other port other than ssh or windows 53 remote access.

In short: go to the management console:



  • Go to Elastic IP, get Elastic IP and assign it to your instance. This is the IP address with which you can instance.
  • Go to the "Security Groups" section. Add a new group or choose the default. Add a rule to open a port of your Java application to the public. Remember to assign this group to your instance once you've created a new group.

This should do the trick ...

+2


source






More articles:


All Articles