title: How to make express js and socket io listen to different ports
body: <p>I have my socket io and Node express js server both listen to same ports now. Its hosted in AWS ElasticBeanStalk. Its working good.
  Now due to security restrictions , have to move socket io to different port. Its a part of the same code base as of node js app. 
  Can I listen to a different port for socket io? Will that work ?What changes will I have to do in ElasticBeanStalk? Any new ports has to be opened Or is there any restriction in the port?</p>