resolve dns requests via host dns (virtualbox)

Vagrantfile

@@ -38,6 +38,9 @@ Vagrant.configure("2") do |config|
     vb.customize ["modifyvm", :id, "--accelerate3d", "on"]
     vb.customize ["modifyvm", :id, "--accelerate2dvideo", "on"]
 
+    # dns
+    vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
+
     # Adding a SATA controller that allows 4 hard drives
     unless File.exist?("disks/" + DISKS[0]["name"] + ".vmdk")
       vb.customize ['storagectl', :id, '--name', 'SATA Controller', '--add', 'sata', '--portcount', 4]

doc/Virtualbox.md

+## Manage Virtualbox configuration
+* [Documentation CLI VBoxManage](https://www.virtualbox.org/manual/ch08.html)
+
+### Useful commands
+* List running vms
+`VBoxManage list vms`
+* Long listing (including configuration)
+`VBoxManage list vms -l`
+* Show vm config
+`VBoxManage showvminfo devbox`
+* List known hdds (including storage location)
+`VBoxManage list hdds`
+
+## Configure guest to use hosts nameservers
+```
+VBoxManage modifyvm "<VM name>" --natdnshostresolver1 on
+```