Cannot assign requested address in AWS

[DaniAkash]

I have implemented a websocket server using Spring framework and Netty SocketIO. While development I used the host address as localhost and the server was working perfectly fine.

When I'm trying to deploy my code to AWS, I changed the host address to my instance's public IP address. But I'm getting the following error and I'm unable to start my server

Caused by: java.net.BindException: Can't assign requested address
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:125)
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:484)
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1080)
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:430)
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:415)
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:903)
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:197)
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:350)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:380)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)

[DaniAkash]

Should I be using any other IP address instead of the public IP address of my Instance?

[sunilgulabani]

@DaniAkash Am facing same issue. Did you found any solution?

[lilaizhencn]

ifconfig find intranet ip, use it

[pablojr]

@DaniAkash @sunilgulabani if you ever solved this issue in AWS with suggestion from @lilaizhencn please don't forget to update this ticket so we can document a "AWS How-to" later. Thanks.

[sunilgulabani]

@pablojr I was able to resolve this issue. When we create SocketIO Server with hostname as "localhost", application is only accessible from local environment. I changed the hostname parameter value to "0.0.0.0" and it worked seamlessly. Rest AWS security group need to be expose for port which we used.

[DaniAkash]

@sunilgulabani it works! thank you!!

[anilpawar1]

tried with -Dserver.port=0.0.0.0
thanks bro..

[hbtechnologia]

@pablojr I was able to resolve this issue. When we create SocketIO Server with hostname as "localhost", application is only accessible from local environment. I changed the hostname parameter value to "0.0.0.0" and it worked seamlessly. Rest AWS security group need to be expose for port which we used.

can you please tell me how to do that i am facing same issue but do not know how to do that. ??Your help wil be appreciated with bundle of thanks.

[hbtechnologia]

@sunilgulabani it works! thank you!!

can you please tell me how to do that i am facing same issue but do not know how to do that. ??Your quick help will be highly appreciated...