Virtual box NAT+ Host-only (static )

1. Set the network adapter for Host-only Network
2. Set the guest OS network
3. Start the guest OS
4. Edit /etc/network/interfaces as below.

   # This file describes the network interfaces available on your system
   # and how to activate them. For more information, see interfaces(5).
   
   source /etc/network/interfaces.d/*
   
   # The loopback network interface
   auto lo
   iface lo inet loopback
   
   # The primary network interface
   auto enp0s3
   iface enp0s3 inet dhcp
   
   #static ip experiment
   auto enp0s8
   iface enp0s8 inet static
   address 192.168.27.101
   netmask 255.255.255.0
   

5. Either restart the VM or run the below command to restart the network
6. sudo service networking restart
7. Now you should be able to perform ping or ssh from your host machine to this guest OS
8. If SSH is not enabled in the server follow the below link to configure open ssh.  http://ubuntuhandbook.org/index.php/2016/04/enable-ssh-ubuntu-16-04-lts/