title: how can we establish a connection between two application with http same VM instance in GCP
body: <p>we have two applications running on different ports,</p>
  <ol>
  <li>application1 is on 8080 and</li>
  <li>application2 is on 5005.
  We are able to connect to the application1 from browser with external IP and port 8080. (ex: http://:8080.</li>
  <li>as per design, application1 should connect to application2 on 5005.</li>
  <li>when we run both with local host it is working fine. But,</li>
  <li>when we try with external IP from VM Instance (on GCP) we can able to open Page from application 1 but not unable to connect to application 2 from application 1.</li>
  </ol>
  <p>Note: Our VM Instance is running on GCP Compute engine.</p>
  <p>Could someone help to resolve the issue.</p>