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The port forwarding feature accessible from the Network advanced settings of your virtual machine allows you to selectively expose a port of your virtual machine to your host.  
This way, you can setup virtual machine port 80/tcp (http traffic) to be easily accessible from your localhost port 8080. 
Below is an exemple for this setting:  
Name: webserver 
http Protol: TCP 
Host IP: 127.0.0.1 
Host Port: 8080 
Guest IP:  
Guest port: 80