Vagrantfile

Vagrant.configure(2) do |config|
    config.vm.box = "fnando/hellobits-trusty32"
end

Acho melhor deixar assim:

# _*_ mode: ruby _*_
# vi: set ft=ruby:

Vagrant.configure(2) do |config|
  config.vm.box = "fnando/hellobits-trusty32"

  config.vm.network "forwarded_port", guest: 80, host: 8080
  config.vm.network "forwarded_port", guest: 22, host: 2222

  config.ssh.forward_agent = true

  config.vm.provider :virtualbox do |vb|
    vb.name = "nome_que_você_quiser"
    vb.memory = '1024'
  end
end