I have a Windows VM running Windows Server 2012 on Google Cloud and have installed 2 web application on IIS on the server. Let's take the example IP as 1.2.3.4 One application is hosted on port 80 and bound at abc.com while the other application is hosted at port 81.
I am able to access the website at abc.com however, when trying to access as 1.2.3.4:80 or 1.2.3.4:81, the website is not accessible. Please advise how to open the ports.