This post shows you how to enable web server access through port 80 if you have a Web Server running in a Virtual Machine setup in Azure. It used to only have something called “Firewall” but Azure has changed that. To enable the port 80 for your VM, you don’t go and look for firewall. Go to your Azure Dashboard and look for Network security group that associated with your virtual machine.
Click on it you will see the Inbound security rules. Click on Add. You can then add the port 90.
Once you have added then you will see it appears in your Inbound security rules.