Simple CentOS 7 VM configuration

This setup allows you to ssh into your VM easily (without port forwarding)

1. Create a new VirtualBox VM with name vm-name of type Linux, Version Linux 2.6 / 3.xd /4.x (64-bit)
2. Start the VM, select the install iso, follow dialog boxes to complete installation then shutdown the vm
3. run these commands on the host

   VBoxManage modifyvm "vm-name" --nictype1 82543GC
   VBoxManage modifyvm "vm-name" --nic2 hostonly
   VBoxManage modifyvm "vm-name" --nictype2 82543GC
   VBoxManage modifyvm "vm-name" --hostonlyadapter2 "VirtualBox Host-Only Ethernet Adapter"
   

4. run these command on the guest

   sed -ie "s/ONBOOT=no/ONBOOT=yes/" /etc/sysconfig/network-scripts/ifcfg-enp0s3
   sed -ie "s/ONBOOT=no/ONBOOT=yes/" /etc/sysconfig/network-scripts/ifcfg-enp0s8
   systemctl stop NetworkManager.service
   systemctl start NetworkManager.service